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Wang C, Jiang H, Zhu J, Jin Y. A new agent for contrast-enhanced intravascular ultrasound imaging in vitro: polybutylcyanoacrylate nanoparticles with drug-carrying capacity. Artif Cells Nanomed Biotechnol 2024; 52:218-228. [PMID: 38646876 DOI: 10.1080/21691401.2024.2334713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 03/20/2024] [Indexed: 04/23/2024]
Abstract
This study prepared and evaluated polymeric polybutylcyanoacrylate (PBCA) nanoparticles (NPs) that can be used as a new agent for contrast-enhanced intravascular ultrasound (IVUS) imaging with drug delivery capacity. The nanoformulation was successfully developed using suspension polymerisation and characterised in terms of size, size distribution, zeta potential, morphology, stability, toxicity effects, imaging effects and drug release study. The results showed that the nanoparticles were round and hollow, with a particle diameter of 215.8 ± 25.3 nm and a zeta potential of -22.2 ± 4.1 mV. In vitro experiments, the nanoparticles were safe, non-toxic, and stable in nature with the capacity to carry and release drug (ant-miR-126). Moreover, the nanoparticles can match the high-frequency probe of commercially IVUS as a contrast agent to improve the resolution of imaging (the mean echo intensity ratio in the vascular wall increased significantly from 10.89 ± 1.10 at baseline, to 24.51 ± 1.91 during injection and 43.70 ± 0.88 after injection, respectively p < .0001). Overall, a new nano agent with drug-carrying capacity was prepared, which can be used in combination with IVUS for simultaneous diagnosis and targeted therapy of coronary atherosclerosis.
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Affiliation(s)
- Congying Wang
- The Department of Cardiology, The Fourth Affiliated Hospital of Zhejiang University School of Medicine, Yiwu, Zhejiang, China
| | - Haodong Jiang
- The Department of Cardiology, The Fourth Affiliated Hospital of Zhejiang University School of Medicine, Yiwu, Zhejiang, China
| | - Jia Zhu
- The Department of Cardiology, The Fourth Affiliated Hospital of Zhejiang University School of Medicine, Yiwu, Zhejiang, China
| | - Yunpeng Jin
- The Department of Cardiology, The Fourth Affiliated Hospital of Zhejiang University School of Medicine, Yiwu, Zhejiang, China
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Si G, Du Y, Tang P, Ma G, Jia Z, Zhou X, Mu D, Shen Y, Lu Y, Mao Y, Chen C, Li Y, Gu N. Unveiling the next generation of MRI contrast agents: current insights and perspectives on ferumoxytol-enhanced MRI. Natl Sci Rev 2024; 11:nwae057. [PMID: 38577664 PMCID: PMC10989670 DOI: 10.1093/nsr/nwae057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/23/2024] [Accepted: 02/05/2024] [Indexed: 04/06/2024] Open
Abstract
Contrast-enhanced magnetic resonance imaging (CE-MRI) is a pivotal tool for global disease diagnosis and management. Since its clinical availability in 2009, the off-label use of ferumoxytol for ferumoxytol-enhanced MRI (FE-MRI) has significantly reshaped CE-MRI practices. Unlike MRI that is enhanced by gadolinium-based contrast agents, FE-MRI offers advantages such as reduced contrast agent dosage, extended imaging windows, no nephrotoxicity, higher MRI time efficiency and the capability for molecular imaging. As a leading superparamagnetic iron oxide contrast agent, ferumoxytol is heralded as the next generation of contrast agents. This review delineates the pivotal clinical applications and inherent technical superiority of FE-MRI, providing an avant-garde medical-engineering interdisciplinary lens, thus bridging the gap between clinical demands and engineering innovations. Concurrently, we spotlight the emerging imaging themes and new technical breakthroughs. Lastly, we share our own insights on the potential trajectory of FE-MRI, shedding light on its future within the medical imaging realm.
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Affiliation(s)
- Guangxiang Si
- Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210009, China
| | - Yue Du
- Key Laboratory for Bio-Electromagnetic Environment and Advanced Medical Theranostics, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing 210029, China
| | - Peng Tang
- Key Laboratory for Bio-Electromagnetic Environment and Advanced Medical Theranostics, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing 210029, China
| | - Gao Ma
- Department of Radiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Zhaochen Jia
- Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210009, China
| | - Xiaoyue Zhou
- MR Collaboration, Siemens Healthineers Ltd., Shanghai 200126, China
| | - Dan Mu
- Department of Radiology, Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Yan Shen
- Key Laboratory for Bio-Electromagnetic Environment and Advanced Medical Theranostics, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing 210029, China
| | - Yi Lu
- School of Mathematical Sciences, Capital Normal University, Beijing 100048, China
| | - Yu Mao
- Nanjing Key Laboratory for Cardiovascular Information and Health Engineering Medicine, Institute of Clinical Medicine, Nanjing Drum Tower Hospital, Medical School, Nanjing University, Nanjing 210093, China
| | - Chuan Chen
- Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210009, China
| | - Yan Li
- Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210009, China
| | - Ning Gu
- Nanjing Key Laboratory for Cardiovascular Information and Health Engineering Medicine, Institute of Clinical Medicine, Nanjing Drum Tower Hospital, Medical School, Nanjing University, Nanjing 210093, China
- Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210009, China
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3
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Caro C, Guzzi C, Moral-Sánchez I, Urbano-Gámez JD, Beltrán AM, García-Martín ML. Smart Design of ZnFe and ZnFe@Fe Nanoparticles for MRI-Tracked Magnetic Hyperthermia Therapy: Challenging Classical Theories of Nanoparticles Growth and Nanomagnetism. Adv Healthc Mater 2024; 13:e2304044. [PMID: 38303644 DOI: 10.1002/adhm.202304044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 01/18/2024] [Indexed: 02/03/2024]
Abstract
Iron Oxide Nanoparticles (IONPs) hold the potential to exert significant influence on fighting cancer through their theranostics capabilities as contrast agents (CAs) for magnetic resonance imaging (MRI) and as mediators for magnetic hyperthermia (MH). In addition, these capabilities can be improved by doping IONPs with other elements. In this work, the synthesis and characterization of single-core and alloy ZnFe novel magnetic nanoparticles (MNPs), with improved magnetic properties and more efficient magnetic-to-heat conversion, are reported. Remarkably, the results challenge classical nucleation and growth theories, which cannot fully predict the final size/shape of these nanoparticles and, consequently, their magnetic properties, implying the need for further studies to better understand the nanomagnetism phenomenon. On the other hand, leveraging the enhanced properties of these new NPs, successful tumor therapy by MH is achieved following their intravenous administration and tumor accumulation via the enhanced permeability and retention (EPR) effect. Notably, these results are obtained using a single low dose of MNPs and a single exposure to clinically suitable alternating magnetic fields (AMF). Therefore, as far as the authors are aware, for the first time, the successful application of intravenously administered MNPs for MRI-tracked MH tumor therapy in passively targeted tumor xenografts using clinically suitable conditions is demonstrated.
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Affiliation(s)
- Carlos Caro
- Biomedical Magnetic Resonance Laboratory-BMRL, Andalusian Public Foundation Progress and Health-FPS, Seville, 41092, Spain
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA Plataforma BIONAND), Universidad de Málaga, C/Severo Ochoa, 35, Malaga, 29590, Spain
| | - Cinzia Guzzi
- Biomedical Magnetic Resonance Laboratory-BMRL, Andalusian Public Foundation Progress and Health-FPS, Seville, 41092, Spain
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA Plataforma BIONAND), Universidad de Málaga, C/Severo Ochoa, 35, Malaga, 29590, Spain
| | - Irene Moral-Sánchez
- Biomedical Magnetic Resonance Laboratory-BMRL, Andalusian Public Foundation Progress and Health-FPS, Seville, 41092, Spain
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA Plataforma BIONAND), Universidad de Málaga, C/Severo Ochoa, 35, Malaga, 29590, Spain
| | - Jesús David Urbano-Gámez
- Biomedical Magnetic Resonance Laboratory-BMRL, Andalusian Public Foundation Progress and Health-FPS, Seville, 41092, Spain
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA Plataforma BIONAND), Universidad de Málaga, C/Severo Ochoa, 35, Malaga, 29590, Spain
| | - Ana M Beltrán
- Departamento de Ingeniería y Ciencia de los Materiales y del Transporte, Escuela Politécnica Superior, Universidad de Sevilla, Virgen de África 7, Sevilla, 41011, Spain
| | - Maria Luisa García-Martín
- Biomedical Magnetic Resonance Laboratory-BMRL, Andalusian Public Foundation Progress and Health-FPS, Seville, 41092, Spain
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA Plataforma BIONAND), Universidad de Málaga, C/Severo Ochoa, 35, Malaga, 29590, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials & Nanomedicine (CIBER-BBN), Madrid, 28029, Spain
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4
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Gao J, Wang Y, Zhang A, Pang H, Wang F. Old woman with Sheehan's syndrome suffered severe hyponatremia following percutaneous coronary intervention: a case report and review of literature. Front Cardiovasc Med 2024; 11:1353392. [PMID: 38742176 PMCID: PMC11089169 DOI: 10.3389/fcvm.2024.1353392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 04/17/2024] [Indexed: 05/16/2024] Open
Abstract
Glucocorticoid deficiency can lead to hypoglycemia, hypotension, and electrolyte disorders. Acute glucocorticoid deficiency under stress is very dangerous. Here, we present a case study of an elderly patient diagnosed with Sheehan's syndrome, manifesting secondary adrenal insufficiency and secondary hypothyroidism, managed with daily prednisone and levothyroxine therapy. She was admitted to our hospital due to acute non-ST segment elevation myocardial infarction. The patient developed nausea and limb twitching post-percutaneous coronary intervention, with subsequent diagnosis of hyponatremia. Despite initial intravenous sodium supplementation failed to rectify the condition, and consciousness disturbances ensued. However, administration of 50 mg hydrocortisone alongside 6.25 mg sodium chloride rapidly ameliorated symptoms and elevated blood sodium levels. Glucocorticoid deficiency emerged as the primary etiology of hyponatremia in this context, exacerbated by procedural stress during percutaneous coronary intervention. Contrast agent contributed to blood sodium dilution. Consequently, glucocorticoid supplementation emerges as imperative, emphasizing the necessity of stress-dose administration of glucocorticoid before the procedure. Consideration of shorter intervention durations and reduced contrast agent dosages may mitigate severe hyponatremia risks. Moreover, it is crucial for this patient to receive interdisciplinary endocrinologist management. In addition, Sheehan's syndrome may pose a risk for coronary atherosclerotic disease.
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Affiliation(s)
- Jie Gao
- School of Clinical Medicine, Shandong Second Medical University, Weifang, Shandong, China
| | - Yuehai Wang
- Cardiology Department and Experimental Animal Center, Liaocheng People’s Hospital of Shandong University and Liaocheng Hospital Affiliated to Shandong First Medical University, Liaocheng, Shandong, China
| | - Anqi Zhang
- Department of Central Laboratory, Liaocheng People’s Hospital, Liaocheng, Shandong, China
| | - Huihui Pang
- School of Clinical Medicine, Shandong Second Medical University, Weifang, Shandong, China
| | - Fei Wang
- Department of Cardiology, Shandong Corps Hospital of Chinese People’s Armed Police Forces, Jinan, China
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5
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Wu Y, Zhao S, Xu Y, Tang C, Feng Y, Zhang M, Yang H, Ma Y, Li Y, Wang W. A Hexanuclear Gadolinium(III)-Based Nanoprobe for Magnetic Resonance Imaging of Tumor Apoptosis. ACS Appl Nano Mater 2024; 7:9020-9030. [PMID: 38694722 PMCID: PMC11059065 DOI: 10.1021/acsanm.4c00511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 03/21/2024] [Accepted: 03/25/2024] [Indexed: 05/04/2024]
Abstract
Magnetic resonance imaging (MRI) is instrumental in the noninvasive evaluation of tumor tissues in patients subjected to chemotherapy, thereby yielding essential diagnostic data crucial for the prognosis of tumors and the formulation of therapeutic strategies. Currently, commercially available MRI contrast agents (CAs) predominantly consist of mononuclear gadolinium(III) complexes. Because there is only one Gd(III) atom per molecule, these CAs often require administration in high doses to achieve the desired contrast quality, which inevitably leads to some adverse events. Herein, we develop a six-nuclei, apoptosis-targeting T1 CA, Gd6-ZnDPA nanoprobe, which consists of a hexanuclear gadolinium nanocluster (Gd6) with an apoptosis-targeting group (ZnDPA). The amplification of Gd(III) by the hexanuclear structure generates its high longitudinal relaxivity (44.67 mM-1 s-1, 1T) and low r1/r2 ratio (0.68, 1T). Based on the Solomon-Bloembergen-Morgan (SBM) theory, this notable improvement is primarily ascribed to a long correlation tumbling time (τR). More importantly, the Gd6-ZnDPA nanoprobe shows excellent tumor apoptosis properties with an enhanced MR signal ratio (∼74%) and a long MRI imaging acquisition time window (∼48 h) in 4T1 tumor-bearing mice. This study introduces an experimental gadolinium-based CA for the potential imaging of tumor apoptosis in the context of MRI.
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Affiliation(s)
- Yufan Wu
- Department
of Diagnostic and Interventional Radiology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao
Tong University School of Medicine, Shanghai 200233, P. R. China
| | - Shuo Zhao
- Joint
International Research Laboratory of Resource Chemistry of Ministry
of Education, Shanghai Key Laboratory of Rare Earth Functional Materials,
and Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Ye Xu
- Key
Laboratory of Advanced Functional Materials, School of Chemistry &
Materials Engineering, Changshu Institute
of Technology, Changshu 215500, P. R. China
| | - Chaojie Tang
- Department
of Diagnostic and Interventional Radiology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao
Tong University School of Medicine, Shanghai 200233, P. R. China
| | - Yujie Feng
- Joint
International Research Laboratory of Resource Chemistry of Ministry
of Education, Shanghai Key Laboratory of Rare Earth Functional Materials,
and Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Mianmian Zhang
- Department
of Diagnostic and Interventional Radiology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao
Tong University School of Medicine, Shanghai 200233, P. R. China
| | - Hong Yang
- Joint
International Research Laboratory of Resource Chemistry of Ministry
of Education, Shanghai Key Laboratory of Rare Earth Functional Materials,
and Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Yunsheng Ma
- Key
Laboratory of Advanced Functional Materials, School of Chemistry &
Materials Engineering, Changshu Institute
of Technology, Changshu 215500, P. R. China
| | - Yuehua Li
- Department
of Diagnostic and Interventional Radiology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao
Tong University School of Medicine, Shanghai 200233, P. R. China
| | - Wu Wang
- Department
of Diagnostic and Interventional Radiology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao
Tong University School of Medicine, Shanghai 200233, P. R. China
- Department
of Radiology, Longhua Hospital, Shanghai
University of Traditional Chinese Medicine, Shanghai 200032, P. R. China
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6
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Li M, Guo X, Verma A, Rudkouskaya A, McKenna AM, Intes X, Wang G, Barroso M. Contrast-enhanced photon-counting micro-CT of tumor xenograft models. Phys Med Biol 2024. [PMID: 38670143 DOI: 10.1088/1361-6560/ad4447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2024]
Abstract
OBJECTIVE Photon-counting micro-computed tomography (micro-CT) is a major advance in small animal preclinical imaging. Small molecule- and nanoparticle-based contrast agents have been widely used to enable the differentiation of liver tumors from surrounding tissues using photon-counting micro-CT. However, there is a notable gap in the application of these market-available agents to the imaging of breast and ovarian tumors using photon-counting micro-CT. Herein, we have used photon-counting micro-CT to determine the effectiveness of these contrast agents in differentiating ovarian and breast tumor xenografts in live, intact mice.
Approach. Nude mice carrying different types of breast and ovarian tumor xenografts (AU565, MDA-MB-231 and SKOV-3 human cancer cells) were injected with ISOVUE-370 (a small molecule-based agent) or Exitrone Nano 12000 (a nanoparticle-based agent) and subjected to photon-counting micro-CT. To improve tumor visualization using photon-counting micro-CT, we developed a novel color visualization method, which changes color tones to highlight contrast media distribution, offering a robust alternative to traditional material decomposition methods with less computational demand.
Main results. Our in vivo experiments confirm the effectiveness of this color visualization approach, showing distinct enhancement characteristics for each contrast agent. Qualitative and quantitative analyses suggest that Exitrone Nano 12000 provides superior vasculature enhancement and better quantitative consistency across scans, while ISOVUE-370 delivers a more comprehensive tumor enhancement but with significant variance between scans due to its short blood half-time. Further, a paired t-test on mean and standard deviation values within tumor volumes showed significant differences between the AU565 and SKOV-3 tumor models with the nanoparticle-based contrast agent (p-values < 0.02), attributable to their distinct vascularity, as confirmed by immunohistochemical analysis.
Significance. These findings underscore the utility of photon-counting micro-CT in non-invasively assessing the morphology and anatomy of different tumor xenografts, which is crucial for tumor characterization and longitudinal monitoring of tumor progression and response to treatments.
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Affiliation(s)
- Mengzhou Li
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York, 12180-3522, UNITED STATES
| | - Xiaodong Guo
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York, 12180-3522, UNITED STATES
| | - Amit Verma
- Department of Molecular and Cellular Physiology, Albany Medical College, 47 New Scotland Avenue, Albany, New York, 12208-3479, UNITED STATES
| | - Alena Rudkouskaya
- Department of Molecular and Cellular Physiology, Albany Medical College, 47 New Scotland Avenue, Albany, New York, 12208-3479, UNITED STATES
| | - Antigone M McKenna
- Rensselaer Polytechnic Institute, 1623 15th Street, Troy, New York, 12180, UNITED STATES
| | - Xavier Intes
- Biomedical Engineering Department, Rensselaer Polytechnic Institute, 110 8th street, Troy, New York, 12180-3522, UNITED STATES
| | - Ge Wang
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York, 12180-3522, UNITED STATES
| | - Margarida Barroso
- Department of Molecular and Cellular Physiology, Albany Medical College, 47 New Scotland Avenue, Albany, New York, 12208-3479, UNITED STATES
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Watzenboeck ML, Beer L, Kifjak D, Röhrich S, Heidinger BH, Prayer F, Milos RI, Apfaltrer P, Langs G, Baltzer PAT, Prosch H. Contrast Agent Dynamics Determine Radiomics Profiles in Oncologic Imaging. Cancers (Basel) 2024; 16:1519. [PMID: 38672601 PMCID: PMC11049400 DOI: 10.3390/cancers16081519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 04/11/2024] [Accepted: 04/15/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND The reproducibility of radiomics features extracted from CT and MRI examinations depends on several physiological and technical factors. The aim was to evaluate the impact of contrast agent timing on the stability of radiomics features using dynamic contrast-enhanced perfusion CT (dceCT) or MRI (dceMRI) in prostate and lung cancers. METHODS Radiomics features were extracted from dceCT or dceMRI images in patients with biopsy-proven peripheral prostate cancer (pzPC) or biopsy-proven non-small cell lung cancer (NSCLC), respectively. Features that showed significant differences between contrast phases were identified using linear mixed models. An L2-penalized logistic regression classifier was used to predict class labels for pzPC and unaffected prostate regions-of-interest (ROIs). RESULTS Nine pzPC and 28 NSCLC patients, who were imaged with dceCT and/or dceMRI, were included in this study. After normalizing for individual enhancement patterns by defining seven individual phases based on a reference vessel, 19, 467 and 128 out of 1204 CT features showed significant temporal dynamics in healthy prostate parenchyma, prostate tumors and lung tumors, respectively. CT radiomics-based classification accuracy of healthy and tumor ROIs was highly dependent on contrast agent phase. For dceMRI, 899 and 1027 out of 1118 features were significantly dependent on time after contrast agent injection for prostate and lung tumors. CONCLUSIONS CT and MRI radiomics features in both prostate and lung tumors are significantly affected by interindividual differences in contrast agent dynamics.
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Affiliation(s)
- Martin L. Watzenboeck
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria (G.L.); (P.A.T.B.); (H.P.)
- Computational Imaging Research Lab, Christian Doppler Laboratory for Machine Learning Driven Precision Medicine, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria
| | - Lucian Beer
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria (G.L.); (P.A.T.B.); (H.P.)
- Computational Imaging Research Lab, Christian Doppler Laboratory for Machine Learning Driven Precision Medicine, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria
| | - Daria Kifjak
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria (G.L.); (P.A.T.B.); (H.P.)
- Computational Imaging Research Lab, Christian Doppler Laboratory for Machine Learning Driven Precision Medicine, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria
| | - Sebastian Röhrich
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria (G.L.); (P.A.T.B.); (H.P.)
- Computational Imaging Research Lab, Christian Doppler Laboratory for Machine Learning Driven Precision Medicine, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria
| | - Benedikt H. Heidinger
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria (G.L.); (P.A.T.B.); (H.P.)
- Computational Imaging Research Lab, Christian Doppler Laboratory for Machine Learning Driven Precision Medicine, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria
| | - Florian Prayer
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria (G.L.); (P.A.T.B.); (H.P.)
- Computational Imaging Research Lab, Christian Doppler Laboratory for Machine Learning Driven Precision Medicine, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria
| | - Ruxandra-Iulia Milos
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria (G.L.); (P.A.T.B.); (H.P.)
- Computational Imaging Research Lab, Christian Doppler Laboratory for Machine Learning Driven Precision Medicine, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria
| | - Paul Apfaltrer
- Zentralröntgeninstitut für Diagnostik, Interventionelle Radiologie und Nuklearmedizin, Landesklinikum Wiener Neustadt, 2700 Wiener Neustadt, Austria
| | - Georg Langs
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria (G.L.); (P.A.T.B.); (H.P.)
- Computational Imaging Research Lab, Christian Doppler Laboratory for Machine Learning Driven Precision Medicine, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria
| | - Pascal A. T. Baltzer
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria (G.L.); (P.A.T.B.); (H.P.)
| | - Helmut Prosch
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria (G.L.); (P.A.T.B.); (H.P.)
- Computational Imaging Research Lab, Christian Doppler Laboratory for Machine Learning Driven Precision Medicine, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, 1090 Vienna, Austria
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8
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Wongsawaeng D, Schwartz D, Li X, Muldoon LL, Stoller J, Stateler C, Holland S, Szidonya L, Rooney WD, Wyatt C, Ambady P, Fu R, Neuwelt EA, Barajas RF. Comparison of dynamic susceptibility contrast (DSC) using gadolinium and iron-based contrast agents in high-grade glioma at high-field MRI. Neuroradiol J 2024:19714009241242596. [PMID: 38544404 DOI: 10.1177/19714009241242596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2024] Open
Abstract
PURPOSE To compare DSC-MRI using Gadolinium (GBCA) and Ferumoxytol (FBCA) in high-grade glioma at 3T and 7T MRI field strengths. We hypothesized that using FBCA at 7T would enhance the performance of DSC, as measured by contrast-to-noise ratio (CNR). METHODS Ten patients (13 lesions) were assigned to 3T (6 patients, 6 lesions) or 7T (4 patients, 7 lesions). All lesions received 0.1 mmol/kg of GBCA on day 1. Ten lesions (4 at 3T and 6 at 7T) received a lower dose (0.6 mg/kg) of FBCA, followed by a higher dose (1.0-1.2 mg/kg), while 3 lesions (2 at 3T and 1 at 7T) received only a higher dose on Day 2. CBV maps with leakage correction for GBCA but not for FBCA were generated. The CNR and normalized CBV (nCBV) were analyzed on enhancing and non-enhancing high T2W lesions. RESULTS Regardless of FBCA dose, GBCA showed higher CNR than FBCA at 7T, which was significant for high-dose FBCA (p < .05). Comparable CNR between GBCA and high-dose FBCA was observed at 3T. There was a trend toward higher CNR for FBCA at 3T than 7T. GBCA also showed nCBV twice that of FBCA at both MRI field strengths with significance at 7T. CONCLUSION GBCA demonstrated higher image conspicuity, as measured by CNR, than FBCA on 7T. The stronger T2* weighting realized with higher magnetic field strength, combined with FBCA, likely results in more signal loss rather than enhanced performance on DSC. However, at clinical 3T, both GBCA and FBCA, particularly a dosage of 1.0-1.2 mg/kg (optimal for perfusion imaging), yielded comparable CNR.
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Affiliation(s)
- Doonyaporn Wongsawaeng
- Department of Radiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Thailand
| | - Daniel Schwartz
- Advanced Imaging Research Center, Oregon Health and Science University, USA
| | - Xin Li
- Advanced Imaging Research Center, Oregon Health and Science University, USA
| | - Leslie L Muldoon
- Department of Neurology, Oregon Health & Science University, USA
| | - Jared Stoller
- Department of Radiology, Oregon Health & Science University, USA
| | | | - Samantha Holland
- Department of Neurology, Oregon Health & Science University, USA
| | - Laszlo Szidonya
- Department of Radiology, Oregon Health & Science University, USA
| | - William D Rooney
- Advanced Imaging Research Center, Oregon Health and Science University, USA
| | - Cory Wyatt
- Department of Radiology, Oregon Health & Science University, USA
| | | | - Rongwei Fu
- School of Public Health, Oregon Health & Science University, USA
| | - Edward A Neuwelt
- Department of Neurology, Oregon Health & Science University, USA
- Department of Neurosurgery, Oregon Health & Science University, USA
| | - Ramon F Barajas
- Advanced Imaging Research Center, Oregon Health and Science University, USA
- Department of Radiology, Oregon Health & Science University, USA
- Knight Cancer Institute, Oregon Health & Science University, USA
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9
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Emonde CK, Eggers ME, Wichmann M, Hurschler C, Ettinger M, Denkena B. Radiopacity Enhancements in Polymeric Implant Biomaterials: A Comprehensive Literature Review. ACS Biomater Sci Eng 2024; 10:1323-1334. [PMID: 38330191 PMCID: PMC10934286 DOI: 10.1021/acsbiomaterials.3c01667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 02/10/2024]
Abstract
Polymers as biomaterials possess favorable properties, which include corrosion resistance, light weight, biocompatibility, ease of processing, low cost, and an ability to be easily tailored to meet specific applications. However, their inherent low X-ray attenuation, resulting from the low atomic numbers of their constituent elements, i.e., hydrogen (1), carbon (6), nitrogen (7), and oxygen (8), makes them difficult to visualize radiographically. Imparting radiopacity to radiolucent polymeric implants is necessary to enable noninvasive evaluation of implantable medical devices using conventional imaging methods. Numerous studies have undertaken this by blending various polymers with contrast agents consisting of heavy elements. The selection of an appropriate contrast agent is important, primarily to ensure that it does not cause detrimental effects to the relevant mechanical and physical properties of the polymer depending upon the intended application. Furthermore, its biocompatibility with adjacent tissues and its excretion from the body require thorough evaluation. We aimed to summarize the current knowledge on contrast agents incorporated into synthetic polymers in the context of implantable medical devices. While a single review was found that discussed radiopacity in polymeric biomaterials, the publication is outdated and does not address contemporary polymers employed in implant applications. Our review provides an up-to-date overview of contrast agents incorporated into synthetic medical polymers, encompassing both temporary and permanent implants. We expect that our results will significantly inform and guide the strategic selection of contrast agents, considering the specific requirements of implantable polymeric medical devices.
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Affiliation(s)
- Crystal Kayaro Emonde
- Laboratory
for Biomechanics and Biomaterials (LBB), Hannover Medical School, Anna-von-Borries-Strasse 1-7, 30625 Hannover, Germany
| | - Max-Enno Eggers
- Institute
of Production Engineering and Machine Tools, Leibniz University Hannover, An der Universität 2, 30823 Garbsen, Hannover, Germany
| | - Marcel Wichmann
- Institute
of Production Engineering and Machine Tools, Leibniz University Hannover, An der Universität 2, 30823 Garbsen, Hannover, Germany
| | - Christof Hurschler
- Laboratory
for Biomechanics and Biomaterials (LBB), Hannover Medical School, Anna-von-Borries-Strasse 1-7, 30625 Hannover, Germany
| | - Max Ettinger
- Department
of Orthopedic Surgery − DIAKOVERE Annastift, Hannover Medical School, Anna-von-Borries-Strasse 1-7, 30625 Hannover, Germany
| | - Berend Denkena
- Institute
of Production Engineering and Machine Tools, Leibniz University Hannover, An der Universität 2, 30823 Garbsen, Hannover, Germany
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10
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Wang L, Wang G, Wang P, Nie F. Pancreatic ductal adenocarcinoma: CEUS characteristics are correlated with pathological findings and help predict early recurrence after resection. J Clin Ultrasound 2024; 52:230-240. [PMID: 38018362 DOI: 10.1002/jcu.23622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/16/2023] [Accepted: 11/17/2023] [Indexed: 11/30/2023]
Abstract
OBJECTIVES To identify characteristics of preoperative contrast-enhanced ultrasound (CEUS) that could predict early recurrence after curative resection of pancreatic ductal adenocarcinoma (PDAC). METHODS From January 2017 to September 2022, a total of 110 patients with PDAC (all confirmed by samples obtained via operation) who underwent CEUS within 1 month before surgery were enrolled. We proposed five CEUS enhancement patterns (Pattern I, homogeneous enhancement; Pattern II, heterogeneous enhancement without cystic components; pattern III, ring enhancement; Pattern IV, starry enhancement; Pattern V, heterogeneous enhancement with cystic components) of PDAC. Clinical-pathologic and CEUS characteristics for predicting early recurrence (recurrence within 1 year after curative resection) were analyzed. Important CEUS characteristics were compared with the pathological findings. RESULTS Tumor size and TNM stage were closely associated with early recurrence. Incomplete-enhancement and enhancement pattern III, IV and V at CEUS imaging were more prone to early recurrence. Incomplete-enhancement lesions had higher histological tumor grades, less frequent remaining acini, and more frequent necrosis within the tumor. PDACs with pattern I and II had lower histological tumor grades, and pattern III, IV and V had higher histological tumor grades. PDACs with pattern I, II and IV had less frequent intratumoral necrosis than PDACs with pattern III and V, and PDACs with pattern IV had lower MVD values. CONCLUSIONS PDACs with incomplete enhancement and enhancement pattern III, IV and V were more prone to early recurrence after attempted curative resection, and these important CEUS characteristics were closely related to the pathological findings of PDAC.
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Affiliation(s)
- Lan Wang
- Ultrasound Medical Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Guojuan Wang
- Ultrasound Medical Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Peihua Wang
- Ultrasound Medical Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Fang Nie
- Ultrasound Medical Center, Lanzhou University Second Hospital, Lanzhou, China
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11
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Marth AA, Hosse C, Yamamura J, Went S, Al Shinibr R, Gebert P, Kolck J, Keresztyen O, Krusche M, Keller S, Can E. The value of non-enhanced MRI in the evaluation of patients with suspected idiopathic inflammatory myopathy. Muscle Nerve 2024; 69:334-339. [PMID: 38197490 DOI: 10.1002/mus.28036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 12/27/2023] [Accepted: 12/29/2023] [Indexed: 01/11/2024]
Abstract
INTRODUCTION/AIMS The performance of magnetic resonance imaging (MRI) for diagnosing suspected idiopathic inflammatory myopathy (IIM) remains controversial. Furthermore, the role of contrast-enhanced magnetic resonance imaging (CE-MRI) sequences is unclear. The aim of this study was to evaluate the sensitivity and specificity of a non-enhanced magnetic resonance imaging (NE-MRI) protocol compared to a CE-MRI protocol in adult patients with confirmed IIM. METHODS This study retrospectively enrolled patients with suspected IIM who underwent MRI of the upper thigh between 2008 and 2020. The protocol consisted of a T1-weighted (T1w) sequence, a turbo inversion recovery magnitude (TIRM) sequence and a contrast-enhanced T1-weighted sequence (CE-T1w). After randomly stratifying patients into a group with only the T1w and TIRM sequences available and another group with additional availability of CE-T1w, three blinded readers assessed the presence of IIM based on characteristic imaging features. Confirmation of the diagnosis was determined based on the 2017 ACR/EULAR criteria. RESULTS Of the 80 patients (mean age 49.0 ± 21.1 years; 42 female, 38 male) included, 54 (67.5%) had a positive diagnosis of IIM. Cumulated sensitivity and specificity for MRI to detect IIM was 87.1% and 83.3% in the NE-MRI group versus 87.0% and 63.0% in the CE-MRI group. The group differences for sensitivity and specificity were non-significant for each of the three readers, respectively (p ≥ .081). DISCUSSION NE-MRI detects suspected IIM with high diagnostic accuracy and performs equivalently to CE-MRI. Therefore, it may be appropriate to omit the use of contrast agents in MRI scans performed for suspected IIM.
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Affiliation(s)
| | - Clarissa Hosse
- Department of Radiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Jin Yamamura
- Department of Radiology, Universitätsklinikum Eppendorf, Hamburg, Germany
| | - Simone Went
- Department of Radiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Raid Al Shinibr
- Department of Radiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Pimrapat Gebert
- Institute of Biometry and Clinical Epidemiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Johannes Kolck
- Department of Radiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Oliver Keresztyen
- Department of Radiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Martin Krusche
- Department of Rheumatology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Sarah Keller
- Department of Radiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Elif Can
- Department of Radiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
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12
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Lazovic J, Goering E, Wild AM, Schützendübe P, Shiva A, Löffler J, Winter G, Sitti M. Nanodiamond-Enhanced Magnetic Resonance Imaging. Adv Mater 2024; 36:e2310109. [PMID: 38037437 DOI: 10.1002/adma.202310109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/24/2023] [Indexed: 12/02/2023]
Abstract
Nanodiamonds (ND) hold great potential for diverse applications due to their biocompatibility, non-toxicity, and versatile functionalization. Direct visualization of ND by means of non-invasive imaging techniques will open new venues for labeling and tracking, offering unprecedented and unambiguous detection of labeled cells or nanodiamond-based drug carrier systems. The structural defects in diamonds, such as vacancies, can have paramagnetic properties and potentially act as contrast agents in magnetic resonance imaging (MRI). The smallest nanoscale diamond particles, detonation ND, are reported to effectively reduce longitudinal relaxation time T1 and provide signal enhancement in MRI. Using in vivo, chicken embryos, direct visualization of ND is demonstrated as a bright signal with high contrast to noise ratio. At 24 h following intravascular application marked signal enhancement is noticed in the liver and the kidneys, suggesting uptake by the phagocytic cells of the reticuloendothelial system (RES), and in vivo labeling of these cells. This is confirmed by visualization of nanodiamond-labeled macrophages as positive (bright) signal, in vitro. Macrophage cell labeling is not associated with significant increase in pro-inflammatory cytokines or marked cytotoxicity. These results indicate nanodiamond as a novel gadolinium-free contrast-enhancing agent with potential for cell labeling and tracking and over periods of time.
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Affiliation(s)
- Jelena Lazovic
- Medical Systems Central Scientific Facility, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany
| | - Eberhard Goering
- Solid State Spectroscopy Department, Max Planck Institute for Solid State Research, 70569, Stuttgart, Germany
| | - Anna-Maria Wild
- Medical Systems Central Scientific Facility, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany
| | - Peter Schützendübe
- Modern Magnetic Systems Department, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany
| | - Anitha Shiva
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany
| | - Jessica Löffler
- Department of Nuclear Medicine, Ulm University Medical Center, 89081, Ulm, Germany
| | - Gordon Winter
- Department of Nuclear Medicine, Ulm University Medical Center, 89081, Ulm, Germany
| | - Metin Sitti
- College of Engineering and School of Medicine, Koç University, Istanbul, 34450, Turkey
- Institute for Biomedical Engineering, ETH Zurich, Zurich, 8092, Switzerland
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13
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Zhang J, Yuan C, Kong L, Zhu F, Yuan W, Zhang J, Hong J, Deng F, Chen Q, Chen C, Wang T, Zuo Z, Liang M. H-ferritin-nanocaged gadolinium nanoparticles for ultra-sensitive MR molecular imaging. Theranostics 2024; 14:1956-1965. [PMID: 38505606 PMCID: PMC10945347 DOI: 10.7150/thno.93856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 02/15/2024] [Indexed: 03/21/2024] Open
Abstract
Rationale: Magnetic resonance imaging (MRI) is a powerful diagnostic technology by providing high-resolution imaging. Although MRI is sufficiently valued in its resolving morphology, it has poor sensitivity for tracking biomarkers. Therefore, contrast agents are often used to improve MRI diagnostic sensitivity. However, the clinically used Gd chelates are limited in improving MRI sensitivity owing to their low relaxivity. The objective of this study is to develop a novel contrast agent to achieve a highly sensitive tracking of biomarkers in vivo. Methods: A Gd-based nanoprobe composed of a gadolinium nanoparticle encapsulated within a human H-ferritin nanocage (Gd-HFn) has been developed. The specificity and sensitivity of Gd-HFn were evaluated in vivo in tumor-bearing mice and apolipoprotein E-deficient mice (Apoe-/-) by MRI. Results: The Gd-HFn probe shows extremely high relaxivity values (r1 = 549 s-1mM-1, r2 = 1555 s-1mM-1 under a 1.5-T magnetic field; and r1 = 428 s-1mM-1 and r2 = 1286 s-1mM-1 under a 3.0-T magnetic field), which is 175-fold higher than that of the clinically standard Dotarem (Gd-DOTA, r1 =3.13 s-1mM-1) under a 1.5-T magnetic field, and 150-fold higher under a 3.0-T magnetic field. Owing to the substantially enhanced relaxivity values, Gd-HFn achieved a highly sensitive tracking for the tumor targeting receptor of TfR1 and enabled the in vivo MRI visualization of tumors approaching the angiogenic switch. Conclusions: The developed Gd-HFn contrast agent makes MRI a more powerful tool by simultaneously providing functional and morphological imaging information, which paves the way for a new perspective in molecular imaging.
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Affiliation(s)
- Jianlin Zhang
- Experimental Center of Advanced Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, China
| | - Chang Yuan
- Experimental Center of Advanced Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Lingfei Kong
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Feiyan Zhu
- Experimental Center of Advanced Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Wanzhong Yuan
- Department of Neurosurgery, Peking University Third Hospital, Beijing, 100191, China
| | - Junying Zhang
- Experimental Center of Advanced Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Juanji Hong
- Experimental Center of Advanced Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Fang Deng
- Experimental Center of Advanced Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Qi Chen
- Experimental Center of Advanced Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Chen Chen
- Experimental Center of Advanced Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Tao Wang
- Department of Neurosurgery, Peking University Third Hospital, Beijing, 100191, China
| | - Zhentao Zuo
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Minmin Liang
- Experimental Center of Advanced Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
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14
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Bozer A. Hepatobiliary-Specific MRI Contrast Agent Detection of Subvesical Duct (Luschka's) Injury Post-Laparoscopic Cholecystectomy: A Case Report. J Belg Soc Radiol 2024; 108:21. [PMID: 38405418 PMCID: PMC10885843 DOI: 10.5334/jbsr.3532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 02/09/2024] [Indexed: 02/27/2024] Open
Abstract
Post-laparoscopic cholecystectomy bile duct injuries, especially involving Luschka's duct, are concerning. Biliary tree anomalies and the efficacy of intravenous administration of Gd-EOB-DTPA-enhanced magnetic resonance imaging (MRI) in detecting bile leakage are reported based on a case. Teaching Point: Hepatobiliary-specific MRI-contrast agents prove valuable for noninvasive assessment of bile leakage after cholecystectomy.
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Affiliation(s)
- Ahmet Bozer
- Department of Radiology, Bozyaka Educatıon and Research Hospıtal, İzmir, Turkey
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15
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Jeong SY, Seo HB, Seo MH, Cho JW, Kwon S, Son G, Lee SY. Repeatable Acoustic Vaporization of Coated Perfluorocarbon Bubbles for Micro-Actuation Inspired by Polypodium aureum. Biomimetics (Basel) 2024; 9:106. [PMID: 38392152 PMCID: PMC10887373 DOI: 10.3390/biomimetics9020106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 02/01/2024] [Accepted: 02/09/2024] [Indexed: 02/24/2024] Open
Abstract
Polypodium aureum, a fern, possesses a specialized spore-releasing mechanism like a catapult induced by the quick expansion of vaporized bubbles. This study introduces lipid-coated perfluorocarbon droplets to enable repeatable vaporization-condensation cycles, inspired by the repeatable vaporization of Polypodium aureum. Lipid-perfluorocarbon droplets have been considered not to exhibit repeatable oscillations due to bubble collapse of the low surface tension of lipid layers. However, a single lipid-dodecafluoropentane droplet with a diameter of 9.17 µm shows expansion-contraction oscillations over 4000 cycles by changing lipid composition and applying a low-power 1.7 MHz ultrasound to induce the partial vaporization of the droplets. The optimal combinations of shell composition, droplet fabrication, and acoustic conditions can minimize the damage on shell structure and promote a quick recovery of damaged shell layers. The highly expanding oscillatory microbubbles provide a new direction for fuel-free micro- or nanobots, as well as biomedical applications of contrast agents and drug delivery.
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Affiliation(s)
- Se-Yun Jeong
- Department of Mechanical Engineering, Sogang University, Baekbeom-ro 35, Mapo-gu, Seoul 04107, Republic of Korea
| | - Han-Bok Seo
- Department of Mechanical Engineering, Sogang University, Baekbeom-ro 35, Mapo-gu, Seoul 04107, Republic of Korea
| | - Myung-Hyun Seo
- Department of Mechanical Engineering, Sogang University, Baekbeom-ro 35, Mapo-gu, Seoul 04107, Republic of Korea
| | - Jin-Woo Cho
- Department of Mechanical Engineering, Sogang University, Baekbeom-ro 35, Mapo-gu, Seoul 04107, Republic of Korea
| | - Seho Kwon
- Department of Mechanical Engineering, Sogang University, Baekbeom-ro 35, Mapo-gu, Seoul 04107, Republic of Korea
| | - Gihun Son
- Department of Mechanical Engineering, Sogang University, Baekbeom-ro 35, Mapo-gu, Seoul 04107, Republic of Korea
| | - Seung-Yop Lee
- Department of Mechanical Engineering, Sogang University, Baekbeom-ro 35, Mapo-gu, Seoul 04107, Republic of Korea
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16
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Orts-Arroyo M, Ten-Esteve A, Ginés-Cárdenas S, Cerdá-Alberich L, Martí-Bonmatí L, Martínez-Lillo J. A Gadolinium(III) Complex Based on Pyridoxine Molecule with Single-Ion Magnet and Magnetic Resonance Imaging Properties. Int J Mol Sci 2024; 25:2112. [PMID: 38396789 PMCID: PMC10889197 DOI: 10.3390/ijms25042112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/30/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
Pyridoxine (pyr) is a versatile molecule that forms part of the family of B vitamins. It is used to treat and prevent vitamin B6 deficiency and certain types of metabolic disorders. Moreover, the pyridoxine molecule has been investigated as a suitable ligand toward metal ions. Nevertheless, the study of the magnetic properties of metal complexes containing lanthanide(III) ions and this biomolecule is unexplored. We have synthesized and characterized a novel pyridoxine-based GdIII complex of formula [GdIII(pyr)2(H2O)4]Cl3 · 2 H2O (1) [pyr = pyridoxine]. 1 crystallizes in the triclinic system and space group Pī. In its crystal packing, cationic [Gd(pyr)2(H2O)4]3+ entities are connected through H-bonding interactions involving non-coordinating water molecules and chloride anions. In addition, Hirshfeld surfaces of 1 were calculated to further investigate their intermolecular interactions in the crystal lattice. Our investigation of the magnetic properties of 1, through ac magnetic susceptibility measurements, reveals the occurrence of a slow relaxation in magnetization in this mononuclear GdIII complex, indicating an unusual single-ion magnet (SIM) behavior for this pseudo-isotropic metal ion at very low temperatures. We also studied the relaxometric properties of 1, as a potential contrast agent for high-field magnetic resonance imaging (MRI), from solutions of 1 prepared in physiological serum (0.0-3.2 mM range) and measured at 3 T on a clinical MRI scanner. The values of relaxivity obtained for 1 are larger than those of some commercial MRI contrast agents based on mononuclear GdIII systems.
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Affiliation(s)
- Marta Orts-Arroyo
- Departament de Química Inorgànica, Instituto de Ciencia Molecular (ICMol), Universitat de València, c/Catedrático José Beltrán 2, Paterna, 46980 Valencia, Spain;
| | - Amadeo Ten-Esteve
- Radiology Department and Biomedical Imaging Research Group (GIBI230), La Fe University and Polytechnic Hospital and La Fe Health Research Institute, 46026 Valencia, Spain; (A.T.-E.); (S.G.-C.); (L.C.-A.); (L.M.-B.)
| | - Sonia Ginés-Cárdenas
- Radiology Department and Biomedical Imaging Research Group (GIBI230), La Fe University and Polytechnic Hospital and La Fe Health Research Institute, 46026 Valencia, Spain; (A.T.-E.); (S.G.-C.); (L.C.-A.); (L.M.-B.)
| | - Leonor Cerdá-Alberich
- Radiology Department and Biomedical Imaging Research Group (GIBI230), La Fe University and Polytechnic Hospital and La Fe Health Research Institute, 46026 Valencia, Spain; (A.T.-E.); (S.G.-C.); (L.C.-A.); (L.M.-B.)
| | - Luis Martí-Bonmatí
- Radiology Department and Biomedical Imaging Research Group (GIBI230), La Fe University and Polytechnic Hospital and La Fe Health Research Institute, 46026 Valencia, Spain; (A.T.-E.); (S.G.-C.); (L.C.-A.); (L.M.-B.)
| | - José Martínez-Lillo
- Departament de Química Inorgànica, Instituto de Ciencia Molecular (ICMol), Universitat de València, c/Catedrático José Beltrán 2, Paterna, 46980 Valencia, Spain;
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17
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Sung B, Hwang D, Baek A, Yang B, Lee S, Park J, Kim E, Kim M, Lee E, Chang Y. Gadolinium-Based Magnetic Resonance Theranostic Agent with Gallic Acid as an Anti-Neuroinflammatory and Antioxidant Agent. Antioxidants (Basel) 2024; 13:204. [PMID: 38397802 PMCID: PMC10885874 DOI: 10.3390/antiox13020204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/29/2024] [Accepted: 01/31/2024] [Indexed: 02/25/2024] Open
Abstract
Studies in the field have actively pursued the incorporation of diverse biological functionalities into gadolinium-based contrast agents, aiming at the amalgamation of MRI imaging and therapeutic capabilities. In this research, we present the development of Gd-Ga, an anti-neuroinflammatory MR contrast agent strategically designed to target inflammatory mediators for comprehensive imaging diagnosis and targeted lesion treatment. Gd-Ga is a gadolinium complex composed of 1,4,7-tris(carboxymethylaza)cyclododecane-10-azaacetylamide (DO3A) conjugated with gallic acid (3,4,5-trihydroxybenzoic acid). Upon intravenous administration in LPS-induced mouse models, Gd-Ga demonstrated a remarkable three-fold increase in signal-to-noise (SNR) variation compared to Gd-DOTA, particularly evident in both the cortex and hippocampus 30 min post-MR monitoring. In-depth investigations, both in vitro and in vivo, into the anti-neuroinflammatory properties of Gd-Ga revealed significantly reduced protein expression levels of pro-inflammatory mediators compared to the LPS group. The alignment between in silico predictions and phantom studies indicates that Gd-Ga acts as an anti-neuroinflammatory agent by directly binding to MD2. Additionally, the robust antioxidant activity of Gd-Ga was confirmed by its effective scavenging of NO and ROS. Our collective findings emphasize the immense potential of this theranostic complex, where a polyphenol serves as an anti-inflammatory drug, presenting an exceptionally efficient platform for the diagnosis and treatment of neuroinflammation.
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Affiliation(s)
- Bokyung Sung
- ICT Convergence Research Center, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea;
| | - Dongwook Hwang
- Department of Biomedical Science, School of Medicine, Kyungpook National University, 680 Gukchaebosang-ro, Jung-gu, Daegu 41944, Republic of Korea;
- Theranocure Co., Ltd., 90 Chilgokjungang-daero 136-gil, Buk-gu, Daegu 41405, Republic of Korea; (B.Y.); (S.L.)
| | - Ahrum Baek
- Institute of Biomedical Engineering Research, Kyungpook National University, 680 Gukchaebosang-ro, Jung-gu, Daegu 41944, Republic of Korea; (A.B.); (E.L.)
| | - Byeongwoo Yang
- Theranocure Co., Ltd., 90 Chilgokjungang-daero 136-gil, Buk-gu, Daegu 41405, Republic of Korea; (B.Y.); (S.L.)
- Department of Medical & Biological Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea
| | - Sangyun Lee
- Theranocure Co., Ltd., 90 Chilgokjungang-daero 136-gil, Buk-gu, Daegu 41405, Republic of Korea; (B.Y.); (S.L.)
- Department of Medical & Biological Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea
| | - Jangwoo Park
- Korea Radioisotope Center for Pharmaceuticals, Korea Institute of Radiological & Medical Sciences, Seoul 01812, Republic of Korea; (J.P.); (E.K.)
| | - Eunji Kim
- Korea Radioisotope Center for Pharmaceuticals, Korea Institute of Radiological & Medical Sciences, Seoul 01812, Republic of Korea; (J.P.); (E.K.)
- Center for Data Analytics Innovation, Office of National R&D Evaluation and Analysis, Korea Institute of S&T Evaluation and Planning, 1339, Wonjung-ro, Maengdong-myeon, Eumseong-gun 27740, Republic of Korea
| | - Minsup Kim
- TARS Scientific, Nowon-gu, Seoul 01662, Republic of Korea;
| | - Eunshil Lee
- Institute of Biomedical Engineering Research, Kyungpook National University, 680 Gukchaebosang-ro, Jung-gu, Daegu 41944, Republic of Korea; (A.B.); (E.L.)
| | - Yongmin Chang
- Department of Biomedical Science, School of Medicine, Kyungpook National University, 680 Gukchaebosang-ro, Jung-gu, Daegu 41944, Republic of Korea;
- Institute of Biomedical Engineering Research, Kyungpook National University, 680 Gukchaebosang-ro, Jung-gu, Daegu 41944, Republic of Korea; (A.B.); (E.L.)
- Department of Medical & Biological Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea
- Department of Molecular Medicine, School of Medicine, Kyungpook National University, 680 Guchaebosang-ro, Jung-gu, Daegu 41944, Republic of Korea
- Department of Radiology, Kyungpook National University Hospital, 130 Dongdeok-ro, Jung-gu, Daegu 41944, Republic of Korea
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18
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Talebloo N, Bernal MAO, Kenyon E, Mallett CL, Mondal SK, Fazleabas A, Moore A. Imaging of Endometriotic Lesions Using cRGD-MN Probe in a Mouse Model of Endometriosis. Nanomaterials (Basel) 2024; 14:319. [PMID: 38334590 PMCID: PMC10856945 DOI: 10.3390/nano14030319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/30/2024] [Accepted: 02/01/2024] [Indexed: 02/10/2024]
Abstract
Approximately 10% of women suffer from endometriosis during their reproductive years. This disease is a chronic debilitating condition whose etiology for lesion implantation and survival heavily relies on adhesion and angiogenic factors. Currently, there are no clinically approved agents for its detection. In this study, we evaluated cRGD-peptide-conjugated nanoparticles (RGD-Cy5.5-MN) to detect lesions using magnetic resonance imaging (MRI) in a mouse model of endometriosis. We utilized a luciferase-expressing murine suture model of endometriosis. Imaging was performed before and after 24 h following the intravenous injection of RGD-Cy5.5-MN or control nanoparticles (Cy5.5-MN). Next, we performed biodistribution of RGD-Cy5.5-MN and correlative fluorescence microscopy of lesions stained for CD34. Tissue iron content was determined using inductively coupled plasma optical emission spectrometry (ICP-OES). Our results demonstrated that targeting endometriotic lesions with RGD-Cy5.5-MN resulted in a significantly higher delta T2* upon its accumulation compared to Cy5.5-MN. ICP-OES showed significantly higher iron content in the lesions of the animals in the experimental group compared to the lesions of the animals in the control group. Histology showed colocalization of Cy5.5 signal from RGD-Cy5.5-MN with CD34 in the lesions pointing to the targeted nature of the probe. This work offers initial proof-of-concept for targeting angiogenesis in endometriosis which can be useful for potential clinical diagnostic and therapeutic approaches for treating this disease.
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Affiliation(s)
- Nazanin Talebloo
- Precision Health Program, Michigan State University, 766 Service Road, East Lansing, MI 48824, USA; (N.T.); (E.K.); (S.K.M.)
- Department of Chemistry, College of Natural Sciences, Michigan State University, 578 S Shaw Lane, East Lansing, MI 48824, USA
| | - M. Ariadna Ochoa Bernal
- Department of Obstetrics, Gynecology & Reproductive Biology, Michigan State University, 400 Monroe Avenue NW, Grand Rapids, MI 49503, USA; (M.A.O.B.); (A.F.)
- Department of Animal Science, Michigan State University, 474 S Shaw Ln #1290, East Lansing, MI 48824, USA
| | - Elizabeth Kenyon
- Precision Health Program, Michigan State University, 766 Service Road, East Lansing, MI 48824, USA; (N.T.); (E.K.); (S.K.M.)
- Department of Radiology, College of Human Medicine, Michigan State University, 766 Service Road, East Lansing, MI 48824, USA;
| | - Christiane L. Mallett
- Department of Radiology, College of Human Medicine, Michigan State University, 766 Service Road, East Lansing, MI 48824, USA;
- Institute for Quantitative Health Science and Engineering, Michigan State University, 775 Woodlot Drive, East Lansing, MI 48824, USA
| | - Sujan Kumar Mondal
- Precision Health Program, Michigan State University, 766 Service Road, East Lansing, MI 48824, USA; (N.T.); (E.K.); (S.K.M.)
- Department of Radiology, College of Human Medicine, Michigan State University, 766 Service Road, East Lansing, MI 48824, USA;
| | - Asgerally Fazleabas
- Department of Obstetrics, Gynecology & Reproductive Biology, Michigan State University, 400 Monroe Avenue NW, Grand Rapids, MI 49503, USA; (M.A.O.B.); (A.F.)
| | - Anna Moore
- Precision Health Program, Michigan State University, 766 Service Road, East Lansing, MI 48824, USA; (N.T.); (E.K.); (S.K.M.)
- Department of Radiology, College of Human Medicine, Michigan State University, 766 Service Road, East Lansing, MI 48824, USA;
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19
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Gao S, Miura Y, Sumiyoshi A, Ohno S, Ogata K, Nomoto T, Matsui M, Honda Y, Suzuki M, Iiyama M, Osada K, Aoki I, Nishiyama N. Self-Folding Macromolecular Drug Carrier for Cancer Imaging and Therapy. Adv Sci (Weinh) 2024; 11:e2304171. [PMID: 38030413 PMCID: PMC10870020 DOI: 10.1002/advs.202304171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 10/18/2023] [Indexed: 12/01/2023]
Abstract
Nano-sized contrast agents (NCAs) hold potential for highly specific tumor contrast enhancement during magnetic resonance imaging. Given the quantity of contrast agents loaded into a single nano-carrier and the anticipated relaxation effects, the current molecular design approaches its limits. In this study, a novel molecular mechanism to augment the relaxation of NCAs is introduced and demonstrated. NCA formation is driven by the intramolecular self-folding of a single polymer chain that possesses systematically arranged hydrophilic and hydrophobic segments in water. Utilizing this self-folding molecular design, the relaxivity value can be elevated with minimal loading of gadolinium complexes, enabling sharp tumor imaging. Furthermore, the study reveals that this NCA can selectively accumulate into tumor tissues, offering effective anti-tumor results through gadolinium neutron capture therapy. The efficacy and versatility of this self-folding molecular design underscore its promise for cancer diagnosis and treatment.
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Affiliation(s)
- Shan Gao
- Laboratory for Chemistry and Life ScienceTokyo Institute of TechnologyR1‐11, 4259 Nagatsuta‐cho, Midori‐kuYokohamaKanagawa226‐8503Japan
- Department of Life Science and TechnologySchool of Life Science and TechnologyTokyo Institute of Technology4259 Nagatsuta‐cho, Midori‐kuYokohamaKanagawa226‐8503Japan
| | - Yutaka Miura
- Laboratory for Chemistry and Life ScienceTokyo Institute of TechnologyR1‐11, 4259 Nagatsuta‐cho, Midori‐kuYokohamaKanagawa226‐8503Japan
- Department of Life Science and TechnologySchool of Life Science and TechnologyTokyo Institute of Technology4259 Nagatsuta‐cho, Midori‐kuYokohamaKanagawa226‐8503Japan
| | - Akira Sumiyoshi
- Institute for Quantum Medical ScienceNational Institutes for Quantum Science and TechnologyAnagawa 4‐9‐1, InageChiba263‐8555Japan
| | - Satoshi Ohno
- Laboratory for Chemistry and Life ScienceTokyo Institute of TechnologyR1‐11, 4259 Nagatsuta‐cho, Midori‐kuYokohamaKanagawa226‐8503Japan
- Department of Life Science and TechnologySchool of Life Science and TechnologyTokyo Institute of Technology4259 Nagatsuta‐cho, Midori‐kuYokohamaKanagawa226‐8503Japan
| | - Keisuke Ogata
- Laboratory for Chemistry and Life ScienceTokyo Institute of TechnologyR1‐11, 4259 Nagatsuta‐cho, Midori‐kuYokohamaKanagawa226‐8503Japan
- Department of Life Science and TechnologySchool of Life Science and TechnologyTokyo Institute of Technology4259 Nagatsuta‐cho, Midori‐kuYokohamaKanagawa226‐8503Japan
| | - Takahiro Nomoto
- Laboratory for Chemistry and Life ScienceTokyo Institute of TechnologyR1‐11, 4259 Nagatsuta‐cho, Midori‐kuYokohamaKanagawa226‐8503Japan
- Department of Life Science and TechnologySchool of Life Science and TechnologyTokyo Institute of Technology4259 Nagatsuta‐cho, Midori‐kuYokohamaKanagawa226‐8503Japan
- Department of Life SciencesGraduate School of Arts and SciencesThe University of Tokyo3‐8‐1 Komaba, Meguro‐kuTokyo153‐8902Japan
| | - Makoto Matsui
- Laboratory for Chemistry and Life ScienceTokyo Institute of TechnologyR1‐11, 4259 Nagatsuta‐cho, Midori‐kuYokohamaKanagawa226‐8503Japan
| | - Yuto Honda
- Laboratory for Chemistry and Life ScienceTokyo Institute of TechnologyR1‐11, 4259 Nagatsuta‐cho, Midori‐kuYokohamaKanagawa226‐8503Japan
- Department of Life Science and TechnologySchool of Life Science and TechnologyTokyo Institute of Technology4259 Nagatsuta‐cho, Midori‐kuYokohamaKanagawa226‐8503Japan
| | - Minoru Suzuki
- Division of Particle Radiation OncologyParticle Radiation Oncology Research CenterInstitute for Integrated Radiation and Nuclear ScienceKyoto University2–1010, Asashiro‐nishi, Kumatori‐cho, Sennan‐gunOsaka590‐0494Japan
| | - Megumi Iiyama
- Institute for Quantum Medical ScienceNational Institutes for Quantum Science and TechnologyAnagawa 4‐9‐1, InageChiba263‐8555Japan
| | - Kensuke Osada
- Institute for Quantum Medical ScienceNational Institutes for Quantum Science and TechnologyAnagawa 4‐9‐1, InageChiba263‐8555Japan
| | - Ichio Aoki
- Institute for Quantum Medical ScienceNational Institutes for Quantum Science and TechnologyAnagawa 4‐9‐1, InageChiba263‐8555Japan
| | - Nobuhiro Nishiyama
- Laboratory for Chemistry and Life ScienceTokyo Institute of TechnologyR1‐11, 4259 Nagatsuta‐cho, Midori‐kuYokohamaKanagawa226‐8503Japan
- Department of Life Science and TechnologySchool of Life Science and TechnologyTokyo Institute of Technology4259 Nagatsuta‐cho, Midori‐kuYokohamaKanagawa226‐8503Japan
- Innovation Center of Nanomedicine (iCONM)Kawasaki Institute of Industrial Promotion3‐25‐14 TonomachiKawasakiKanagawa210‐0821Japan
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20
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Sun IC, Dumani DS, Emelianov SY. Applications of the Photocatalytic and Photoacoustic Properties of Gold Nanorods in Contrast-Enhanced Ultrasound and Photoacoustic Imaging. ACS Nano 2024; 18:3575-3582. [PMID: 38235729 DOI: 10.1021/acsnano.3c11223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
The applications of ultrasound imaging are often limited due to low contrast, which arises from the comparable acoustic impedance of normal tissues and disease sites. To improve the low contrast, we propose a contrast agent called gas-generating laser-activatable nanorods for contrast enhancement (GLANCE), which enhances ultrasound imaging contrast in two ways. First, GLANCE absorbs near-infrared lasers and generates nitrogen gas bubbles through the photocatalytic function of gold nanorods and photolysis of azide compounds. These gas bubbles decrease the acoustic impedance and highlight the injection site from the surrounding tissues. Second, GLANCE exhibits photoacoustic properties owing to the gold nanorods that emit photoacoustic signals upon laser irradiation. Additionally, GLANCE offers several benefits for biomedical applications such as nanometer-scale size, adjustable optical absorption, and biocompatibility. These distinctive features of GLANCE would overcome the limitations of conventional ultrasound imaging and facilitate the accurate diagnosis of various diseases.
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Affiliation(s)
- In-Cheol Sun
- Medicinal Materials Research Center, Biomedical Research Division, Korea Institute of Science and Technology, 5, Hwarang-ro, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Diego S Dumani
- School of Electrical Engineering, University of Costa Rica, San Pedro Montes de Oca, San Jose 11501-2060, Costa Rica
| | - Stanislav Y Emelianov
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, Georgia 30322, United States
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21
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Yue H, Zhao D, Tegafaw T, Ahmad MY, Saidi AKAA, Liu Y, Cha H, Yang BW, Chae KS, Nam SW, Chang Y, Lee GH. Core-Shell Fe 3O 4@C Nanoparticles as Highly Effective T 2 Magnetic Resonance Imaging Contrast Agents: In Vitro and In Vivo Studies. Nanomaterials (Basel) 2024; 14:177. [PMID: 38251140 PMCID: PMC10819740 DOI: 10.3390/nano14020177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/08/2024] [Accepted: 01/09/2024] [Indexed: 01/23/2024]
Abstract
Magnetite nanoparticles (Fe3O4 NPs) have been intensively investigated because of their potential biomedical applications due to their high saturation magnetization. In this study, core-shell Fe3O4@C NPs (core = Fe3O4 NPs and shell = amorphous carbons, davg = 35.1 nm) were synthesized in an aqueous solution. Carbon coating terminated with hydrophilic -OH and -COOH groups imparted excellent biocompatibility and hydrophilicity to the NPs, making them suitable for biomedical applications. The Fe3O4@C NPs exhibited ideal relaxometric properties for T2 magnetic resonance imaging (MRI) contrast agents (i.e., high transverse and negligible longitudinal water proton spin relaxivities), making them exclusively induce only T2 relaxation. Their T2 MRI performance as contrast agents was confirmed in vivo by measuring T2 MR images in mice before and after intravenous injection.
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Affiliation(s)
- Huan Yue
- Department of Chemistry, College of Natural Sciences, Kyungpook National University, Taegu 41566, Republic of Korea; (H.Y.); (D.Z.); (T.T.); (M.Y.A.); (A.K.A.A.S.); (Y.L.)
| | - Dejun Zhao
- Department of Chemistry, College of Natural Sciences, Kyungpook National University, Taegu 41566, Republic of Korea; (H.Y.); (D.Z.); (T.T.); (M.Y.A.); (A.K.A.A.S.); (Y.L.)
| | - Tirusew Tegafaw
- Department of Chemistry, College of Natural Sciences, Kyungpook National University, Taegu 41566, Republic of Korea; (H.Y.); (D.Z.); (T.T.); (M.Y.A.); (A.K.A.A.S.); (Y.L.)
| | - Mohammad Yaseen Ahmad
- Department of Chemistry, College of Natural Sciences, Kyungpook National University, Taegu 41566, Republic of Korea; (H.Y.); (D.Z.); (T.T.); (M.Y.A.); (A.K.A.A.S.); (Y.L.)
| | - Abdullah Khamis Ali Al Saidi
- Department of Chemistry, College of Natural Sciences, Kyungpook National University, Taegu 41566, Republic of Korea; (H.Y.); (D.Z.); (T.T.); (M.Y.A.); (A.K.A.A.S.); (Y.L.)
| | - Ying Liu
- Department of Chemistry, College of Natural Sciences, Kyungpook National University, Taegu 41566, Republic of Korea; (H.Y.); (D.Z.); (T.T.); (M.Y.A.); (A.K.A.A.S.); (Y.L.)
| | - Hyunsil Cha
- Division of Biomedical Science, School of Medicine, Kyungpook National University, Taegu 41944, Republic of Korea;
| | - Byeong Woo Yang
- Theranocure, Medlifescience Bldg. 1, Chilgok, Bukgu, Taegu 41405, Republic of Korea;
| | - Kwon Seok Chae
- Department of Biology Education, Teachers’ College, Kyungpook National University, Taegu 41566, Republic of Korea;
| | - Sung-Wook Nam
- Department of Molecular Medicine, School of Medicine, Kyungpook National University, Taegu 41944, Republic of Korea;
| | - Yongmin Chang
- Department of Molecular Medicine, School of Medicine, Kyungpook National University, Taegu 41944, Republic of Korea;
| | - Gang Ho Lee
- Department of Chemistry, College of Natural Sciences, Kyungpook National University, Taegu 41566, Republic of Korea; (H.Y.); (D.Z.); (T.T.); (M.Y.A.); (A.K.A.A.S.); (Y.L.)
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22
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Courchesne M, Manrique G, Bernier L, Moussa L, Cresson J, Gutzeit A, Froehlich JM, Koh DM, Chartrand-Lefebvre C, Matoori S. Gender Differences in Pharmacokinetics: A Perspective on Contrast Agents. ACS Pharmacol Transl Sci 2024; 7:8-17. [PMID: 38230293 PMCID: PMC10789139 DOI: 10.1021/acsptsci.3c00116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 11/20/2023] [Accepted: 11/24/2023] [Indexed: 01/18/2024]
Abstract
Gender is an important risk factor for adverse drug reactions. Women report significantly more adverse drug reactions than men. There is a growing consensus that gender differences in drug PK is a main contributor to higher drug toxicity in women. These differences stem from physiological differences (body composition, plasma protein concentrations, and liver and kidney function), drug interactions, and comorbidities. Contrast agents are widely used to enhance diagnostic performance in computed tomography and magnetic resonance imaging. Despite their broad use, these contrast agents can lead to important adverse reactions including hypersensitivity reactions, nephropathy, and hyperthyroidism. Importantly, female gender is one of the main risk factors for contrast agent toxicity. As these adverse reactions may be related to gender differences in PK, this perspective aims to describe distribution and elimination pathways of commonly used contrast agents and to critically discuss gender differences in these processes.
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Affiliation(s)
- Myriam Courchesne
- Faculté
de Pharmacie, Université de Montréal, 2940 Chemin de Polytechnique, Montreal, Quebec H3T 1J4, Canada
| | - Gabriela Manrique
- Faculté
de Pharmacie, Université de Montréal, 2940 Chemin de Polytechnique, Montreal, Quebec H3T 1J4, Canada
| | - Laurie Bernier
- Faculté
de Pharmacie, Université de Montréal, 2940 Chemin de Polytechnique, Montreal, Quebec H3T 1J4, Canada
| | - Leen Moussa
- Faculté
de Pharmacie, Université de Montréal, 2940 Chemin de Polytechnique, Montreal, Quebec H3T 1J4, Canada
| | - Jeanne Cresson
- Clinical
Research Group, Klus Apotheke Zurich, 8032 Zurich, Switzerland
| | - Andreas Gutzeit
- Department
of Health Sciences and Medicine, University
of Lucerne, Frohburgstaße 3, 6002 Luzern, Switzerland
- Institute
of Radiology and Nuclear Medicine and Breast Center St. Anna, Hirslanden Klinik St. Anna, 6006 Lucerne, Switzerland
- Department
of Radiology, Paracelsus Medical University, 5020 Salzburg, Austria
| | | | - Dow-Mu Koh
- Cancer Research
UK Clinical Magnetic Resonance Research Group, Institute of Cancer Research, Sutton, Surrey SM2 5NG, United Kingdom
| | - Carl Chartrand-Lefebvre
- Radiology
Department, Centre Hospitalier de l’Université
de Montréal (CHUM), Montreal, Quebec H2X 3E4, Canada
- Centre
de Recherche du Centre Hospitalier de l’Université de
Montréal (CRCHUM), Montreal, Quebec H2X 0A9, Canada
| | - Simon Matoori
- Faculté
de Pharmacie, Université de Montréal, 2940 Chemin de Polytechnique, Montreal, Quebec H3T 1J4, Canada
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Li M, Guo X, Verma A, Rudkouskaya A, McKenna AM, Intes X, Wang G, Barroso M. Contrast-enhanced photon-counting micro-CT of tumor xenograft models. bioRxiv 2024:2024.01.03.574097. [PMID: 38260707 PMCID: PMC10802390 DOI: 10.1101/2024.01.03.574097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Photon-counting micro computed tomography (micro-CT) offers new potential in preclinical imaging, particularly in distinguishing materials. It becomes especially helpful when combined with contrast agents, enabling the differentiation of tumors from surrounding tissues. There are mainly two types of contrast agents in the market for micro-CT: small molecule-based and nanoparticle-based. However, despite their widespread use in liver tumor studies, there is a notable gap in research on the application of these commercially available agents for photon-counting micro-CT in breast and ovarian tumors. Herein, we explored the effectiveness of these agents in differentiating tumor xenografts from various origins (AU565, MDA-MB-231, and SKOV-3) in nude mice, using photon-counting micro-CT. Specifically, ISOVUE-370 (a small molecule-based agent) and Exitrone Nano 12000 (a nanoparticle-based agent) were investigated in this context. To improve tumor visualization, we proposed a novel color visualization method for photon-counting micro-CT, which changes color tones to highlight contrast media distribution, offering a robust alternative to traditional material decomposition methods with less computational demand. Our in vivo experiments confirm its effectiveness, showing distinct enhancement characteristics for each contrast agent. Qualitative and quantitative analyses suggested that Exitrone Nano 12000 provides superior vasculature enhancement and better quantitative consistency across scans, while ISOVUE-370 gives more comprehensive tumor enhancement but with a significant variance between scans due to its short blood half-time. This variability leads to high sensitivity to timing and individual differences among mice. Further, a paired t-test on mean and standard deviation values within tumor volumes showed significant differences between the AU565 and SKOV-3 tumor models with the nanoparticle-based (p-values < 0.02), attributable to their distinct vascularity, as confirmed by immunohistochemistry. These findings underscore the utility of photon-counting micro-CT in non-invasively assessing the morphology and anatomy of different tumor xenografts, which is crucial for tumor characterization and longitudinal monitoring of tumor development and response to treatments.
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Affiliation(s)
- Mengzhou Li
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Xiaodong Guo
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Amit Verma
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY 12208, USA
| | - Alena Rudkouskaya
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY 12208, USA
| | - Antigone M. McKenna
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Xavier Intes
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Ge Wang
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Margarida Barroso
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY 12208, USA
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24
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Lewis EM, Jones P, Clemens G, Fretellier N, Bussi S, Hirani E, Czupalla O, Tedoldi F, Bourrinet P, Hoberman AM. Evaluation of gadolinium-based contrast agents in juvenile CD-1 mice including behavioral evaluations. Birth Defects Res 2024; 116:e2284. [PMID: 38158745 DOI: 10.1002/bdr2.2284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 11/12/2023] [Accepted: 11/28/2023] [Indexed: 01/03/2024]
Abstract
INTRODUCTION Seven gadolinium-based contrast agents (GBCAs), four linear and three macrocyclic, were evaluated for potential effects on development, including behavior of juvenile CD-1 mice. METHODS The GBCAs were administered via intravenous injection once daily on postnatal day (PND) 9, 12, 15, 18, and 21 (PND 1 was the day of delivery) at doses up to twice the human equivalent clinical dose (i.e., 0.63 mmol Gd/kg for gadoxetate disodium and 2.5 mmol Gd/kg for the other GBCAs). Mice were bled for evaluation of exposure (plasma) to gadolinium (Gd) on PND 9, 12, and 70. At scheduled euthanasia, the liver, spleen, brain, skin (dorsal surface), bone (left femur), and kidneys were excised from up to six mice/sex/group on PND 10, 22, or 70 for the determination of Gd levels and histopathological analysis. All mice were monitored for toxicity, growth and survival, sexual maturation, and behavior. CONCLUSION Gd was quantifiable in the brain tissues with levels declining over time. There was no long-term effect on the growth and development for mice exposed to any of the GBCAs. There was no impact on neurodevelopment as assessed by brain histology and validated neurobehavioral tests, including a functional observational battery, motor activity, and learning and memory as evaluated in the Morris water maze. For all GBCAs, the highest dose tested represented the no-observable-adverse-effect level in juvenile mice.
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Affiliation(s)
- Elise M Lewis
- Charles River Laboratories, Inc., Safety Assessment, Horsham, Pennsylvania, USA
| | - Paul Jones
- GE Healthcare, Pharmaceutical Diagnostics, Chalfont St. Giles, UK
| | - Guenther Clemens
- Bayer AG, Pharmaceuticals Research and Development, Berlin, Germany
| | | | | | - Ella Hirani
- GE Healthcare, Pharmaceutical Diagnostics, Chalfont St. Giles, UK
| | - Oliver Czupalla
- Bayer AG, Pharmaceuticals Research and Development, Berlin, Germany
| | | | | | - Alan M Hoberman
- Charles River Laboratories, Inc., Safety Assessment, Horsham, Pennsylvania, USA
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25
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Lewis EM, Bussi S, Fretellier N, Clemens G, Jones P, Tedoldi F, Bourrinet P, Czupalla O, Hirani E, Hoberman AM. Evaluation of gadolinium-based contrast agents in pregnant CD-1 mice and subsequent in utero exposure of the developing offspring, including behavioral evaluations. Birth Defects Res 2024; 116:e2291. [PMID: 38158716 DOI: 10.1002/bdr2.2291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 09/12/2023] [Accepted: 12/06/2023] [Indexed: 01/03/2024]
Abstract
INTRODUCTION The offspring of CD-1 mice exposed during pregnancy to one of seven gadolinium-based contrast agents (GBCAs) were evaluated for potential effects on postnatal development and behavior. The GBCAs, comprising four linear (gadopentetate dimeglumine, gadodiamide, gadobenate dimeglumine, and gadoxetate disodium) and three macrocyclic (gadoterate meglumine, gadoteridol, and gadobutrol), were administered via intravenous injection once daily from Gestation Day 6 through 17 following confirmed mating (Day 0) at doses of at least twice the human equivalent recommended clinical dose (i.e., 0.63 mmol Gd/kg for gadoxetate disodium and 2.5 mmol Gd/kg for the other GBCAs). All dams were allowed to deliver naturally. F0 generation females were monitored for maternal toxicity and gadolinium (Gd) levels in blood and brain. Offspring were evaluated for Gd levels in blood and brain at birth and on Day 70 postpartum. F1 generation mice were evaluated for survival and growth preweaning. Selected pups/litter were evaluated postweaning for sexual maturation, growth, and behavior. Gd was quantifiable in the brain of the F1 offspring on PND 1, with levels declining over time. There was no long-term effect of any GBCA on the growth and development of any offspring. There was no impact on neurodevelopment, as assessed by brain histology and validated neurobehavioral tests, including a battery of functional observational tests, motor activity, and learning and memory as evaluated in the Morris water maze. CONCLUSION At the end of the postweaning period, the highest dose tested was considered the no-observable-adverse-effect level (NOAEL) in the F0 and F1 offspring for all tested GBCAs.
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Affiliation(s)
- Elise M Lewis
- Charles River Laboratories, Inc., Safety Assessment, Horsham, Pennsylvania, USA
| | | | | | - Guenther Clemens
- Bayer AG, Pharmaceuticals Research & Development, Berlin, Germany
| | - Paul Jones
- GE Healthcare, Pharmaceutical Diagnostics, Chalfont St. Giles, United Kingdom
| | | | | | - Oliver Czupalla
- Bayer AG, Pharmaceuticals Research & Development, Berlin, Germany
| | - Ella Hirani
- GE Healthcare, Pharmaceutical Diagnostics, Chalfont St. Giles, United Kingdom
| | - Alan M Hoberman
- Charles River Laboratories, Inc., Safety Assessment, Horsham, Pennsylvania, USA
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26
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Glancy SB, Morris HD, Ho VB, Klarmann GJ. Optimal Agents for Visualizing Collagen Tissue Microarchitecture Using Contrast-Enhanced MicroCT. Pharmaceuticals (Basel) 2023; 16:1719. [PMID: 38139845 PMCID: PMC10747128 DOI: 10.3390/ph16121719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 12/05/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
Micro-computed tomography (microCT) is a common tool for the visualization of the internal composition of organic tissues. Collagen comprises approximately 25-35% of the whole-body protein content in mammals, and the structure and arrangement of collagen fibers contribute significantly to the integrity of tissues. Collagen type I is also frequently used as a key structural component in tissue-engineered and bioprinted tissues. However, the imaging of collagenous tissues is limited by their inherently low X-ray attenuation, which makes them indistinguishable from most other soft tissues. An imaging contrast agent that selectively alters X-ray attenuation is thus essential to properly visualize collagenous tissue using a standard X-ray tube microCT scanner. This review compares various contrast-enhanced techniques reported in the literature for MicroCT visualization of collagen-based tissues. An ideal microCT contrast agent would meet the following criteria: (1) it diffuses through the tissue quickly; (2) it does not deform or impair the object being imaged; and (3) it provides sufficient image contrast for reliable visualization of the orientation of individual fibers within the collagen network. The relative benefits and disadvantages of each method are discussed. Lugol's solution (I3K), phosphotungstic acid (H3PW12O40), mercury(II) chloride (HgCl2), and Wells-Dawson polyoxometalates came closest to fitting the criteria. While none of the contrast agents discussed in the literature met all criteria, each one has advantages to consider in the context of specific lab capabilities and imaging priorities.
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Affiliation(s)
- Spencer B. Glancy
- San Antonio Uniformed Services Health Education Consortium, San Antonio, TX 78234, USA;
| | - Herman Douglas Morris
- School of Medicine, Uniformed Services University, Bethesda, MD 20814, USA; (H.D.M.); (V.B.H.)
| | - Vincent B. Ho
- School of Medicine, Uniformed Services University, Bethesda, MD 20814, USA; (H.D.M.); (V.B.H.)
- 4D Bio3 Center for Biotechnology, Uniformed Services University, Bethesda, MD 20814, USA
| | - George J. Klarmann
- 4D Bio3 Center for Biotechnology, Uniformed Services University, Bethesda, MD 20814, USA
- The Geneva Foundation, Tacoma, WA 98402, USA
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Cheng MQ, Huang H, Ruan SM, Xu P, Tong WJ, He DN, Huang Y, Lin MX, Lu MD, Kuang M, Wang W, Wu SH, Chen LD. Complementary Role of CEUS and CT/MR LI-RADS for Diagnosis of Recurrent HCC. Cancers (Basel) 2023; 15:5743. [PMID: 38136289 PMCID: PMC10741803 DOI: 10.3390/cancers15245743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/25/2023] [Accepted: 12/02/2023] [Indexed: 12/24/2023] Open
Abstract
PURPOSE We retrospectively compared the diagnostic performance of contrast-enhanced ultrasonography (CEUS) and contrast-enhanced computer tomography-magnetic resonance imaging (CT/MRI) for recurrent hepatocellular carcinoma (HCC) after curative treatment. MATERIALS AND METHODS After curative treatment with 421 ultrasound (US) detected lesions, 303 HCC patients underwent both CEUS and CT/MRI. Each lesion was assigned a Liver Imaging Reporting and Data System (LI-RADS) category according to CEUS and CT/MRI LI-RADS. Receiver-operating characteristic (ROC) curves were computed to determine the optimal diagnosis algorithms for CEUS, CT and MRI. The diagnostic accuracy, sensitivity, specificity, and area under the curve (AUC) were compared between CEUS and CT/MRI. RESULTS Among the 421 lesions, 218 were diagnosed as recurrent HCC, whereas 203 lesions were diagnosed as benign. In recurrent HCC, CEUS detected more arterial hyperenhancement (APHE) and washout than CT and more APHE than MRI. CEUS yielded better diagnostic performance than CT (AUC: 0.981 vs. 0.958) (p = 0.024) comparable diagnostic performance to MRI (AUC: 0.952 vs. 0.933) (p > 0.05) when using their optimal diagnostic criteria. CEUS missed 12 recurrent HCCs, CT missed one, and MRI missed none. The detection rate of recurrent HCC on CEUS (94.8%, 218/230) was lower than that on CT/MRI (99.6%, 259/260) (p = 0.001). Lesions located on the US blind spots and visualization score C would hinder the ability of CEUS to detect recurrent HCC. CONCLUSION CEUS demonstrated excellent diagnostic performance but an inferior detection rate for recurrent HCC. CEUS and CT/MRI played a complementary role in the detection and characterization of recurrent HCC.
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Affiliation(s)
- Mei-Qing Cheng
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China; (M.-Q.C.); (H.H.); (S.-M.R.); (W.-J.T.); (Y.H.); (M.-X.L.); (M.-D.L.); (M.K.); (W.W.)
| | - Hui Huang
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China; (M.-Q.C.); (H.H.); (S.-M.R.); (W.-J.T.); (Y.H.); (M.-X.L.); (M.-D.L.); (M.K.); (W.W.)
| | - Si-Min Ruan
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China; (M.-Q.C.); (H.H.); (S.-M.R.); (W.-J.T.); (Y.H.); (M.-X.L.); (M.-D.L.); (M.K.); (W.W.)
| | - Ping Xu
- Department of Radiology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China;
| | - Wen-Juan Tong
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China; (M.-Q.C.); (H.H.); (S.-M.R.); (W.-J.T.); (Y.H.); (M.-X.L.); (M.-D.L.); (M.K.); (W.W.)
| | - Dan-Ni He
- Department of Medical Ultrasonics, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen 518107, China;
| | - Yang Huang
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China; (M.-Q.C.); (H.H.); (S.-M.R.); (W.-J.T.); (Y.H.); (M.-X.L.); (M.-D.L.); (M.K.); (W.W.)
| | - Man-Xia Lin
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China; (M.-Q.C.); (H.H.); (S.-M.R.); (W.-J.T.); (Y.H.); (M.-X.L.); (M.-D.L.); (M.K.); (W.W.)
| | - Ming-De Lu
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China; (M.-Q.C.); (H.H.); (S.-M.R.); (W.-J.T.); (Y.H.); (M.-X.L.); (M.-D.L.); (M.K.); (W.W.)
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Ming Kuang
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China; (M.-Q.C.); (H.H.); (S.-M.R.); (W.-J.T.); (Y.H.); (M.-X.L.); (M.-D.L.); (M.K.); (W.W.)
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Wei Wang
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China; (M.-Q.C.); (H.H.); (S.-M.R.); (W.-J.T.); (Y.H.); (M.-X.L.); (M.-D.L.); (M.K.); (W.W.)
| | - Shao-Hong Wu
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China; (M.-Q.C.); (H.H.); (S.-M.R.); (W.-J.T.); (Y.H.); (M.-X.L.); (M.-D.L.); (M.K.); (W.W.)
| | - Li-Da Chen
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China; (M.-Q.C.); (H.H.); (S.-M.R.); (W.-J.T.); (Y.H.); (M.-X.L.); (M.-D.L.); (M.K.); (W.W.)
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Ji X, Zhu L, Hsu JC, Wang H, Zhou J, Wang Q, Li Y, Cai W, Ni D, Wu Z. Tungsten-based nanoparticles as contrast agents for liver tumor detection using dual-energy computed tomography. Biomater Sci 2023; 11:7817-7825. [PMID: 37873585 PMCID: PMC10873050 DOI: 10.1039/d3bm01068f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Dual-energy computed tomography (DECT) is a commonly used imaging technique for detecting and diagnosing liver cancer. Currently, it is performed using clinically approved iodinated small molecule contrast agents (CAs). However, these iodinated CAs have several drawbacks, including sub-optimal contrast generation and contra-indication in patients with renal insufficiency. Herein, we synthesized tungsten-based CAs (i.e., WO3-x NPs) with excellent biocompatibility and investigated their effectiveness in DECT imaging. WO3-x NPs significantly enhanced the contrast between liver tumors and normal liver tissues as indicated by in vivo DECT imaging. Furthermore, WO3-x NPs exhibited excellent biocompatibility and minimal systemic toxicity. This study introduces a novel class of CAs for DECT and presents a promising method for accurate early diagnosis of liver tumors.
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Affiliation(s)
- Xiuru Ji
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197, Ruijin 2nd Rd, Shanghai 200025, P. R. China.
| | - Lan Zhu
- Department of Radiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P. R. China.
| | - Jessica C Hsu
- Departments of Radiology and Medical Physics, University of Wisconsin-Madison, Wisconsin 53705, USA.
| | - Han Wang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197, Ruijin 2nd Rd, Shanghai 200025, P. R. China.
| | - Jingwei Zhou
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, No. 639, Zhizaoju Rd., Huangpu District, Shanghai 200011, People's Republic of China
| | - Qingbing Wang
- Department of Radiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P. R. China.
| | - Yuhan Li
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197, Ruijin 2nd Rd, Shanghai 200025, P. R. China.
| | - Weibo Cai
- Departments of Radiology and Medical Physics, University of Wisconsin-Madison, Wisconsin 53705, USA.
| | - Dalong Ni
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197, Ruijin 2nd Rd, Shanghai 200025, P. R. China.
| | - Zhiyuan Wu
- Department of Radiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P. R. China.
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Li H, Zhu Y, Luo N, Tian C. In vivo monitoring of hemodynamic changes in ischemic stroke using photoacoustic tomography. J Biophotonics 2023; 16:e202300235. [PMID: 37556758 DOI: 10.1002/jbio.202300235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/20/2023] [Accepted: 08/07/2023] [Indexed: 08/11/2023]
Abstract
Ischemic stroke occurs when a blood vessel supplying the brain is blocked, leading to decreased blood flow. Early diagnosis and treatment are crucial. However, existing clinical imaging methods have limitations, such as safety issues and low time resolution. To address these challenges, we propose using photoacoustic tomography (PAT) with a contrast agent, known for its high resolution and contrast capabilities. Our study involved imaging brain vasculature in three groups: normal, unilateral common carotid artery ligation (UCAL), and middle cerebral artery occlusion (MCAO). On the ischemic stroke side, we observed reduced blood vessel density and hemodynamic changes were evident after injecting indocyanine green for PAT. The photoacoustic intensity was notably lower in the ligated sides of the UCAL and MCAO groups, with statistically significant differences between the three groups. This work highlights PAT's potential as a powerful tool for early diagnosis and guidance in ischemic stroke cases.
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Affiliation(s)
- Heren Li
- Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei, China
- School of Engineering Science, University of Science and Technology of China, Hefei, China
| | - Yunhao Zhu
- Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei, China
| | - Nianwu Luo
- School of Engineering Science, University of Science and Technology of China, Hefei, China
| | - Chao Tian
- Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei, China
- School of Engineering Science, University of Science and Technology of China, Hefei, China
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Sun X, Cai J, Yu H, Zhang T, Zhang L. Revolutionizing Fallopian Tube Evaluation in Infertility: Transvaginal Sonography Case Study. Int J Womens Health 2023; 15:1895-1899. [PMID: 38050586 PMCID: PMC10693778 DOI: 10.2147/ijwh.s435879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 11/16/2023] [Indexed: 12/06/2023] Open
Abstract
Background Transvaginal four-dimensional hysterosalpingo-contrast sonography (TVS 4D-HyCoSy) is a pivotal diagnostic tool in the assessment and management of infertility. Conventionally, a 20mL syringe is employed for contrast agent injection, either at a constant or pulsatile pressure. However, in cases of bilateral fallopian tube obstruction, continued injection can lead to discomfort and excessive pressure within the uterine cavity, necessitating discontinuation of the examination. Case Presentation In this illuminating case study, a patient underwent TVS 4D-HyCoSy due to infertility concerns. Initial contrast agent injection failed to visualize both fallopian tubes, accompanied by acute pain. Bilateral tubal obstruction was diagnosed, prompting an innovative approach. A 2.5mL syringe was chosen for pulsed injection, leading to successful visualization of patency in one fallopian tube. Remarkably, the patient achieved natural pregnancy within three months of the examination. Conclusion Pulsed injection using a small-volume syringe emerges as a promising technique in cases of fallopian tube obstruction during TVS 4D-HyCoSy. This method not only enhances patient comfort but also improves the likelihood of visualizing fallopian tube patency, contributing to accurate infertility assessments. As a supplementary technique, it addresses limitations associated with constant pressure injection and offers a novel approach to enhance diagnostic success.
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Affiliation(s)
- Xiaofeng Sun
- Department of Ultrasound, Shenzhen Baoan Women’s and Children’s Hospital, Shenzhen, Guangdong Province, 518102, People’s Republic of China
| | - Junhong Cai
- Department of Ultrasound, Shenzhen Baoan Women’s and Children’s Hospital, Shenzhen, Guangdong Province, 518102, People’s Republic of China
| | - Hongkui Yu
- Department of Ultrasound, Shenzhen Baoan Women’s and Children’s Hospital, Shenzhen, Guangdong Province, 518102, People’s Republic of China
| | - Ting Zhang
- Department of Ultrasound, Shenzhen Baoan Women’s and Children’s Hospital, Shenzhen, Guangdong Province, 518102, People’s Republic of China
| | - Lanlang Zhang
- Department of Hemodialysis, Fuyong People’s Hospital of Baoan District, Shenzhen, Guangdong Province, 518103, People’s Republic of China
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Liao W, Que Q, Wen R, Lin P, Chen Y, Pang J, Guo D, Wen D, Yang H, He Y. Comparison of the Feasibility and Diagnostic Performance of ACR CEUS LI-RADS and a Modified CEUS LI-RADS for HCC in Examinations Using Sonazoid. J Ultrasound Med 2023; 42:2501-2511. [PMID: 37269244 DOI: 10.1002/jum.16282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 03/07/2023] [Accepted: 05/02/2023] [Indexed: 06/05/2023]
Abstract
OBJECTIVES The present study aimed to determine the feasibility of the American College of Radiology's (ACR) contrast-enhanced ultrasound (CEUS) Liver Imaging Reporting and Data System (LI-RADS) (version 2017) in examinations using Sonazoid and compare its diagnostic performance with that of modified LI-RADS in patients at high risk of hepatocellular carcinoma (HCC). METHODS This retrospective study's sample population consisted of 137 participants with a total of 140 nodules who underwent CEUS with Sonazoid and pathological confirmation via surgery or biopsy from January 2020 to February 2022. The lesions were evaluated and classified based on the reference standards (ie, ACR CEUS LI-RADS and modified LI-RADS). The overall diagnostic capabilities of the two systems were evaluated in terms of accuracy, sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) with 95% confidence intervals (CIs). RESULTS The participants had a median age of 51 years and an interquartile range of 43-58 years. Regarding LR-5 as a predictor of HCC, the accuracy results of the ACR LI-RADS and modified LI-RADS algorithms were 72.9 and 71.4%, respectively (P = .50). The sensitivity of both systems was the same (69.7%; 95% CI: 60.7-77.8%). Regarding LR-M as a predictor of non-HCC malignancy, the diagnostic performance of the algorithms was the same, with accuracy and sensitivity results of 76.4 and 73.3%, respectively (95% CI: 44.9-92.2%). CONCLUSION The findings indicate that modified LI-RADS had a moderate level of diagnostic performance for HCC in examinations using Sonazoid, which was comparable to ACR LI-RADS.
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Affiliation(s)
- Wei Liao
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Qiao Que
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Rong Wen
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Peng Lin
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yuji Chen
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jinshu Pang
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Danxia Guo
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Dongyue Wen
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Hong Yang
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Guangxi Zhuang Autonomous Region Engineering Research Center for Artificial Intelligence Analysis of Multimodal Tumor Images, Nanning, China
| | - Yun He
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Guangxi Zhuang Autonomous Region Engineering Research Center for Artificial Intelligence Analysis of Multimodal Tumor Images, Nanning, China
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Kapsner LA, Balbach EL, Laun FB, Baumann L, Ohlmeyer S, Uder M, Bickelhaupt S, Wenkel E. Prevalence and influencing factors for artifact development in breast MRI-derived maximum intensity projections. Acta Radiol 2023; 64:2881-2890. [PMID: 37682521 DOI: 10.1177/02841851231198349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
BACKGROUND Magnetic resonance imaging (MRI) provides high diagnostic sensitivity for breast cancer. However, MRI artifacts may impede the diagnostic assessment. This is particularly important when evaluating maximum intensity projections (MIPs), such as in abbreviated MRI (AB-MRI) protocols, because high image quality is desired as a result of fewer sequences being available to compensate for problems. PURPOSE To describe the prevalence of artifacts on dynamic contrast enhanced (DCE) MRI-derived MIPs and to investigate potentially associated attributes. MATERIAL AND METHODS For this institutional review board approved retrospective analysis, MIPs were generated from subtraction series and cropped to represent the left and right breasts as regions of interest. These images were labeled by three independent raters regarding the presence of MRI artifacts. MRI artifact prevalence and associations with patient characteristics and technical attributes were analyzed using descriptive statistics and generalized linear models (GLMMs). RESULTS The study included 2524 examinations from 1794 patients (median age 50 years), performed on 1.5 and 3.0 Tesla MRI systems. Overall inter-rater agreement was kappa = 0.54. Prevalence of significant unilateral artifacts was 29.2% (736/2524), whereas bilateral artifacts were present in 37.8% (953/2524) of all examinations. According to the GLMM, artifacts were significantly positive associated with age (odds ratio [OR] = 1.52) and magnetic field strength (OR = 1.55), whereas a negative effect could be shown for body mass index (OR = 0.95). CONCLUSION MRI artifacts on DCE subtraction MIPs of the breast, as used in AB-MRI, are a relevant topic. Our results show that, besides the magnetic field strength, further associated attributes are patient age and body mass index, which can provide possible targets for artifact reduction.
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Affiliation(s)
- Lorenz A Kapsner
- Institute of Radiology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
- Medical Center for Information and Communication Technology, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Eva L Balbach
- Institute of Radiology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Frederik B Laun
- Institute of Radiology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Lukas Baumann
- Institute of Medical Biometry, University of Heidelberg, Heidelberg, Germany
| | - Sabine Ohlmeyer
- Institute of Radiology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Michael Uder
- Institute of Radiology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Sebastian Bickelhaupt
- Institute of Radiology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Evelyn Wenkel
- Institute of Radiology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
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Kim DS, Song N, Lee D, Kim GW. Comparison of Ultrasound Contrast between H 2O 2-Responsive Nanoparticles and Microbubble Contrast According to Muscle Injury in Rat Models. Diagnostics (Basel) 2023; 13:3320. [PMID: 37958215 PMCID: PMC10649825 DOI: 10.3390/diagnostics13213320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/21/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
Ultrasound contrast agents are clinically used for diagnosis of internal organs, but ultrasound contrast agents are rarely applied clinically in musculoskeletal disorders. Our study aims to comparatively analyze the differences between ultrasonographic images through peri-injury injection of the clinically used microbubble and researched nanoparticle contrast agents in various muscular injury models. To compare contrast-enhanced images in different muscle injury models, we prepared groups of rats with sham, laceration, punch, contusion, and toxin injection injuries. We measured H2O2 levels using the Amplex Red assay by extracting tissue from the damaged area. As comparative contrast agents, SonoVue®, a commercially available microbubble contrast agent, and poly(vanillinoxalte) (PVO) nanoparticles, which are H2O2-responsive nanoparticles, were used. The difference in contrast between the two contrast agents was recorded as an ultrasound movie, and J-image software 1.53p was used to quantify and analyze the maximum and minimum echogenicity values of the images after contrast enhancement. In the Amplex red assay for the highest H2O2 level in each muscle injury model, the maximum level showed 24 h after the modeling. In the sham rats, PVO injection showed no increased echogenicity except at the needle insertion site, but SonoVue® injection showed increased echo signal throughout the injected muscle immediately after injection. One day after the preparation of the lesion, PVO and SonoVue® were injected into the lesion site and ultrasound was performed on the lesion site. After the injection of PVO nanoparticles, contrast enhancement was observed at the lesion site immediately. SonoVue® injections, on the other hand, showed a widespread pattern of echo signals and an increase in echo retention only at the lesion site over time, but this was not clear. There were statistically significant differences between the highest and lowest echogenicity in PVO and SonoVue® contrast-enhanced images in all models. Contrast enhancement lasted more than 3 h in the PVO injection, but disappeared within 3 h in the SonoVue® injection. PVO nanoparticles showed the possibility of physiologic contrast by CO2 generated by conjugation with H2O2 generated by muscle injuries, and SonoVue® injection observed the possibility of microbubble contrast as a contrast agent with a pooling effect that lasts longer on the lesion. Further research is needed to investigate the use of various ultrasound contrast agents, including nanoparticles, in musculoskeletal disorders, as well as the potential for further utilities of microbubble contrast agents.
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Affiliation(s)
- Da-Sol Kim
- Department of Physical Medicine and Rehabilitation, Jeonbuk National University Medical School, Jeonju 54907, Republic of Korea;
- Research Institute of Clinical Medicine—Biomedical Research Institute, Jeonbuk National University Hospital, Jeonju 54907, Republic of Korea
| | - Nanhee Song
- Department of Bionanotechnology and Bioconvergence Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea; (N.S.); (D.L.)
- Department of Polymer Nano Science and Technology, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Dongwon Lee
- Department of Bionanotechnology and Bioconvergence Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea; (N.S.); (D.L.)
- Department of Polymer Nano Science and Technology, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Gi-Wook Kim
- Department of Physical Medicine and Rehabilitation, Jeonbuk National University Medical School, Jeonju 54907, Republic of Korea;
- Research Institute of Clinical Medicine—Biomedical Research Institute, Jeonbuk National University Hospital, Jeonju 54907, Republic of Korea
- Department of Bionanotechnology and Bioconvergence Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea; (N.S.); (D.L.)
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Wang L, Li M, Dong T, Li Y, Yin C, Nie F. Pancreatic Ductal Adenocarcinoma: The Characteristics of Contrast-Enhanced Ultrasound Are Correlated with the Hypoxic Microenvironment. Diagnostics (Basel) 2023; 13:3270. [PMID: 37892091 PMCID: PMC10606620 DOI: 10.3390/diagnostics13203270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 10/13/2023] [Accepted: 10/19/2023] [Indexed: 10/29/2023] Open
Abstract
A hypoxic microenvironment is associated with an increased risk of metastasis, treatment resistance and poor prognosis of pancreatic ductal adenocarcinoma (PDAC). This study aimed to identify contrast-enhanced ultrasound (CEUS) characteristics that could predict the hypoxic microenvironment of PDAC. A total of 102 patients with surgically resected PDAC who underwent CEUS were included. CEUS qualitative and quantitative characteristics were analyzed. The expression of hypoxia-inducible factor-1α (HIF-1) and glucose transporter-1 (GLUT1) were demonstrated by immunohistochemistry. The associations between CEUS characteristics and the HIF-1α and GLUT1 expression of PDACs were evaluated. We found that HIF-1α-high PDACs and GLUT1-high PDACs had a larger tumor size and were more prone to lymph node metastasis. There was a significant positive linear correlation between the expression of HIF-1α and GLUT1. CEUS qualitative characteristics including completeness of enhancement and peak enhancement degree (PED) were related to the expression of HIF-1α and GLUT1. A logistic regression analysis showed that tumor size, lymph node metastasis, incomplete enhancement and iso-enhancement of PED were independent predictors for HIF-1α-high PDACs and GLUT1-high PDACs. As for quantitative characteristics, HIF-1α-high PDACs and GLUT1-high PDACs showed higher peak enhancement (PE) and wash-in rate (WIR). CEUS can effectively reflect the hypoxia microenvironment of PDAC, which may become a noninvasive imaging biomarker for prognosis prediction and individualized treatment.
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Affiliation(s)
- Lan Wang
- Ultrasound Medical Center, Lanzhou University Second Hospital, Cuiyingmen No. 82, Chengguan District, Lanzhou 730030, China; (L.W.); (M.L.); (T.D.); (Y.L.); (C.Y.)
| | - Ming Li
- Ultrasound Medical Center, Lanzhou University Second Hospital, Cuiyingmen No. 82, Chengguan District, Lanzhou 730030, China; (L.W.); (M.L.); (T.D.); (Y.L.); (C.Y.)
| | - Tiantian Dong
- Ultrasound Medical Center, Lanzhou University Second Hospital, Cuiyingmen No. 82, Chengguan District, Lanzhou 730030, China; (L.W.); (M.L.); (T.D.); (Y.L.); (C.Y.)
- Gansu Province Clinical Research Center for Ultrasonography, Lanzhou 730030, China
| | - Yuanyuan Li
- Ultrasound Medical Center, Lanzhou University Second Hospital, Cuiyingmen No. 82, Chengguan District, Lanzhou 730030, China; (L.W.); (M.L.); (T.D.); (Y.L.); (C.Y.)
| | - Ci Yin
- Ultrasound Medical Center, Lanzhou University Second Hospital, Cuiyingmen No. 82, Chengguan District, Lanzhou 730030, China; (L.W.); (M.L.); (T.D.); (Y.L.); (C.Y.)
| | - Fang Nie
- Ultrasound Medical Center, Lanzhou University Second Hospital, Cuiyingmen No. 82, Chengguan District, Lanzhou 730030, China; (L.W.); (M.L.); (T.D.); (Y.L.); (C.Y.)
- Gansu Province Clinical Research Center for Ultrasonography, Lanzhou 730030, China
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Tessier A, Ruze AJ, Varlet I, Laïb EMH, Royer E, Bernard M, Viola A, Perles-Barbacaru TA. Quantitative MRI of Gd-DOTA Accumulation in the Mouse Brain After Intraperitoneal Administration: Validation by Mass Spectrometry. J Magn Reson Imaging 2023. [PMID: 37811700 DOI: 10.1002/jmri.29034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/19/2023] [Accepted: 09/19/2023] [Indexed: 10/10/2023] Open
Abstract
BACKGROUND In mice, intraperitoneal (ip) contrast agent (CA) administration is convenient for mapping microvascular parameters over a long-time window. However, continuous quantitative MRI of CA accumulation in brain over hours is still missing. PURPOSE To validate a quantitative time-resolved MRI technique for mapping the CA kinetics in brain upon ip administration. STUDY TYPE Prospective, animal model. SPECIMEN 25 C57Bl/6JRj mice underwent MRI. FIELD STRENGTH/SEQUENCE 7-T, gradient echo sequence. ASSESSMENT Gd-DOTA concentration was monitored by MRI (25 s/repetition) over 135 minutes with (N = 15) and without (N = 10) ip mannitol challenge (5 g/kg). After the final repetition, the brains were sampled to quantify gadolinium by mass spectrometry (MS). Upon manual brain segmentation, the average gadolinium concentration was compared with the MS quantification in transcardially perfused (N = 20) and unperfused (N = 5) mice. Precontrast T1 -maps were acquired in 8 of 25 mice. STATISTICAL TESTS One-tailed Spearman and Pearson correlation between gadolinium quantification by MRI and by MS, D'Agostino-Pearson test for normal distribution, Bland-Altman analysis to evaluate the agreement between MRI and MS. Significance was set at P-value <0.05. RESULTS MRI showed that ip administered CA reached the blood compartment (>5 mM) within 10 minutes and accumulated continuously for 2 hours in cerebrospinal fluid (>1 mM) and in brain tissue. The MRI-derived concentration maps showed interindividual differences in CA accumulation (from 0.47 to 0.81 mM at 2 hours) with a consistent distribution resembling the pathways of the glymphatic system. The average in-vivo brain concentration 2 hours post-CA administration correlated significantly (r = 0.8206) with the brain gadolinium quantification by MS for N = 21 paired observations available. DATA CONCLUSION The presented experimental and imaging protocol may be convenient for monitoring the spatiotemporal pattern of CA uptake and clearance in the mouse brain over 2 hours. The quantification of the CA from the MRI signal in brain is corroborated by MS. EVIDENCE LEVEL N/A TECHNICAL EFFICACY: Stage 1.
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Affiliation(s)
- Anthony Tessier
- CNRS, Center for Magnetic Resonance Imaging in Biology and Medicine (CRMBM, UMR CNRS 7339), Aix-Marseille University, Marseille, France
- Department of Medical Imaging, Sainte-Anne Military Teaching Hospital (Hôpital d'Instruction des Armées), Toulon, France
| | - Anthony J Ruze
- CNRS, Center for Magnetic Resonance Imaging in Biology and Medicine (CRMBM, UMR CNRS 7339), Aix-Marseille University, Marseille, France
| | - Isabelle Varlet
- CNRS, Center for Magnetic Resonance Imaging in Biology and Medicine (CRMBM, UMR CNRS 7339), Aix-Marseille University, Marseille, France
| | - Estelle M H Laïb
- CNRS, Center for Magnetic Resonance Imaging in Biology and Medicine (CRMBM, UMR CNRS 7339), Aix-Marseille University, Marseille, France
| | - Emilien Royer
- CNRS, Center for Magnetic Resonance Imaging in Biology and Medicine (CRMBM, UMR CNRS 7339), Aix-Marseille University, Marseille, France
| | - Monique Bernard
- CNRS, Center for Magnetic Resonance Imaging in Biology and Medicine (CRMBM, UMR CNRS 7339), Aix-Marseille University, Marseille, France
| | - Angèle Viola
- CNRS, Center for Magnetic Resonance Imaging in Biology and Medicine (CRMBM, UMR CNRS 7339), Aix-Marseille University, Marseille, France
| | - Teodora-Adriana Perles-Barbacaru
- CNRS, Center for Magnetic Resonance Imaging in Biology and Medicine (CRMBM, UMR CNRS 7339), Aix-Marseille University, Marseille, France
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Huang W, Wen R, Wu Y, Lin P, Guo D, Peng Y, Liu D, Mou M, Chen F, Huang F, Yang H, He Y. Can Modifications of LR-M Criteria Improve the Diagnostic Performance of Contrast-Enhanced Ultrasound LI-RADS for Small Hepatic Lesions up to 3 cm? J Ultrasound Med 2023; 42:2403-2413. [PMID: 37269201 DOI: 10.1002/jum.16267] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 01/21/2023] [Accepted: 05/03/2023] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To assess the diagnostic performance of the contrast-enhanced ultrasound liver imaging reporting and data system (CEUS LI-RADS) version 2017 for small hepatic lesions of ≤3 cm before and after changing the LR-M criteria. METHODS We retrospectively analyzed the CEUS examination of 179 patients who were at high risk of hepatocellular carcinoma (HCC) with focal hepatic lesions ≤3 cm (194 lesions in total) and evaluated the diagnostic capability of the American College of Radiology and modified CEUS LI-RADS algorithms. RESULTS Revision of the early washout time to 45 seconds increased the sensitivity of LR-5 in predicting HCC (P = .004), with no significant decrease in specificity (P = .118). It also made better the specificity of LR-M in predicting non-HCC malignancies (P = .001), with no significant decrease in sensitivity (P = .094). However, using within 3 minutes as the criterion for marked washout time improved the LR-5 sensitivity (P < .001) but decreased its specificity (P = .009) in predicting HCC, whereas the specificity of LR-M in predicting non-HCC malignancies increased (P < .001), but the sensitivity decreased (P = .027). CONCLUSIONS CEUS LI-RADS (v2017) is a valid method for predicting HCC risk in high-risk patients. The diagnostic performance of LR-5 and LR-M could boost when the early washout time is revised to 45 seconds.
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Affiliation(s)
- Weiche Huang
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Rong Wen
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yuquan Wu
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Peng Lin
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Danxia Guo
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yuye Peng
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Dun Liu
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Meiyan Mou
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Fenghuan Chen
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Fen Huang
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Hong Yang
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yun He
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
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Ouyang S, Chen C, Lin P, Wu W, Chen G, Li P, Sun M, Chen H, Zheng Z, You Y, Lv S, Zhao P, Lin B, Tao J. Hydrogen-Bonded Organic Frameworks Chelated Manganese for Precise Magnetic Resonance Imaging Diagnosis of Cancers. Nano Lett 2023; 23:8628-8636. [PMID: 37694968 DOI: 10.1021/acs.nanolett.3c02466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Magnetic resonance imaging (MRI) is an important tool in the diagnosis of many cancers. However, clinical gadolinium (Gd)-based MRI contrast agents have limitations, such as large doses and potential side effects. To address these issues, we developed a hydrogen-bonded organic framework-based MRI contrast agent (PFC-73-Mn). Due to the hydrogen-bonded interaction of water molecules and the restricted rotation of manganese ions, PFC-73-Mn exhibits high longitudinal relaxation r1 (5.03 mM-1 s-1) under a 3.0 T clinical MRI scanner. A smaller intravenous dose (8 μmol of Mn/kg) of PFC-73-Mn can provide strong contrast and accurate diagnosis in multiple kinds of cancers, including breast tumor and ultrasmall orthotopic glioma. PFC-73-Mn represents a prospective new approach in tumor imaging, especially in early-stage cancer.
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Affiliation(s)
- Sixue Ouyang
- School of Chemistry and Chemical Engineering, South China University of Technology, 510640 Guangzhou, China
| | - Chuyao Chen
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, 510515 Guangzhou, China
| | - Peiru Lin
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, 510515 Guangzhou, China
| | - Wanjia Wu
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, 510515 Guangzhou, China
| | - Guanjun Chen
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, 510515 Guangzhou, China
| | - Pengfei Li
- Cancer Center, MD TCM-integrated Hospital, Southern Medical University, 510515 Guangzhou, China
| | - Mingyan Sun
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, 510515 Guangzhou, China
| | - Huiting Chen
- School of Chemistry and Chemical Engineering, South China University of Technology, 510640 Guangzhou, China
| | - Zhiyuan Zheng
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, 510515 Guangzhou, China
| | - Yuanyuan You
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, 510515 Guangzhou, China
| | - Sike Lv
- School of Chemistry and Chemical Engineering, South China University of Technology, 510640 Guangzhou, China
| | - Peng Zhao
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, 510515 Guangzhou, China
| | - Bingquan Lin
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, 510515 Guangzhou, China
| | - Jia Tao
- School of Chemistry and Chemical Engineering, South China University of Technology, 510640 Guangzhou, China
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Zhang R, Lu K, Xiao L, Hu X, Cai W, Liu L, Liu Y, Li W, Zhou H, Qian Z, Wang S, Chen C, Zeng J, Gao M. Exploring atherosclerosis imaging with contrast-enhanced MRI using PEGylated ultrasmall iron oxide nanoparticles. Front Bioeng Biotechnol 2023; 11:1279446. [PMID: 37811376 PMCID: PMC10557075 DOI: 10.3389/fbioe.2023.1279446] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 09/12/2023] [Indexed: 10/10/2023] Open
Abstract
Plaque rupture is a critical concern due to its potential for severe outcomes such as cerebral infarction and myocardial infarction, underscoring the urgency of noninvasive early diagnosis. Magnetic resonance imaging (MRI) has gained prominence in plaque imaging, leveraging its noninvasiveness, high spatial resolution, and lack of ionizing radiation. Ultrasmall iron oxides, when modified with polyethylene glycol, exhibit prolonged blood circulation and passive targeting toward plaque sites, rendering them conducive for MRI. In this study, we synthesized ultrasmall iron oxide nanoparticles of approximately 3 nm via high-temperature thermal decomposition. Subsequent surface modification facilitated the creation of a dual-modality magnetic resonance/fluorescence probe. Upon intravenous administration of the probes, MRI assessment of atherosclerotic plaques and diagnostic evaluation were conducted. The application of Flash-3D sequence imaging revealed vascular constriction at lesion sites, accompanied by a gradual signal amplification postprobe injection. T1-weighted imaging of the carotid artery unveiled a progressive signal ratio increase between plaques and controls within 72 h post-administration. Fluorescence imaging of isolated carotid arteries exhibited incremental lesion-to-control signal ratios. Additionally, T1 imaging of the aorta demonstrated an evolving signal enhancement over 48 h. Therefore, the ultrasmall iron oxide nanoparticles hold immense promise for early and noninvasive diagnosis of plaques, providing an avenue for dynamic evaluation over an extended time frame.
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Affiliation(s)
- Ruru Zhang
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, China
| | - Kuan Lu
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, China
- The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Li Xiao
- The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Xuelan Hu
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, China
| | - Wu Cai
- The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Linjiang Liu
- Medical Imaging Department, Shenzhen Second People’s Hospital/The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
| | - Yan Liu
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, China
- The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Weihua Li
- Medical Imaging Department, Shenzhen Second People’s Hospital/The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
| | - Hui Zhou
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, China
| | - Zhiyuan Qian
- The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Sixia Wang
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, China
| | - Can Chen
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, China
| | - Jianfeng Zeng
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, China
| | - Mingyuan Gao
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, China
- The Second Affiliated Hospital of Soochow University, Suzhou, China
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Dan Q, Jiang X, Wang R, Dai Z, Sun D. Biogenic Imaging Contrast Agents. Adv Sci (Weinh) 2023; 10:e2207090. [PMID: 37401173 PMCID: PMC10477908 DOI: 10.1002/advs.202207090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 06/08/2023] [Indexed: 07/05/2023]
Abstract
Imaging contrast agents are widely investigated in preclinical and clinical studies, among which biogenic imaging contrast agents (BICAs) are developing rapidly and playing an increasingly important role in biomedical research ranging from subcellular level to individual level. The unique properties of BICAs, including expression by cells as reporters and specific genetic modification, facilitate various in vitro and in vivo studies, such as quantification of gene expression, observation of protein interactions, visualization of cellular proliferation, monitoring of metabolism, and detection of dysfunctions. Furthermore, in human body, BICAs are remarkably helpful for disease diagnosis when the dysregulation of these agents occurs and can be detected through imaging techniques. There are various BICAs matched with a set of imaging techniques, including fluorescent proteins for fluorescence imaging, gas vesicles for ultrasound imaging, and ferritin for magnetic resonance imaging. In addition, bimodal and multimodal imaging can be realized through combining the functions of different BICAs, which helps overcome the limitations of monomodal imaging. In this review, the focus is on the properties, mechanisms, applications, and future directions of BICAs.
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Affiliation(s)
- Qing Dan
- Shenzhen Key Laboratory for Drug Addiction and Medication SafetyDepartment of UltrasoundInstitute of Ultrasonic MedicinePeking University Shenzhen HospitalShenzhen Peking University‐The Hong Kong University of Science and Technology Medical CenterShenzhen518036P. R. China
| | - Xinpeng Jiang
- Department of Biomedical EngineeringCollege of Future TechnologyPeking UniversityBeijing100871P. R. China
| | - Run Wang
- Shenzhen Key Laboratory for Drug Addiction and Medication SafetyDepartment of UltrasoundInstitute of Ultrasonic MedicinePeking University Shenzhen HospitalShenzhen Peking University‐The Hong Kong University of Science and Technology Medical CenterShenzhen518036P. R. China
| | - Zhifei Dai
- Department of Biomedical EngineeringCollege of Future TechnologyPeking UniversityBeijing100871P. R. China
| | - Desheng Sun
- Shenzhen Key Laboratory for Drug Addiction and Medication SafetyDepartment of UltrasoundInstitute of Ultrasonic MedicinePeking University Shenzhen HospitalShenzhen Peking University‐The Hong Kong University of Science and Technology Medical CenterShenzhen518036P. R. China
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Scalzitti N, Miralavy I, Korenchan DE, Farrar CT, Gilad AA, Banzhaf W. Computational Peptide Discovery with a Genetic Programming Approach. Res Sq 2023:rs.3.rs-3307450. [PMID: 37693481 PMCID: PMC10491332 DOI: 10.21203/rs.3.rs-3307450/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Background The development of peptides for therapeutic targets or biomarkers for disease diagnosis is a challenging task in protein engineering. Current approaches are tedious, often time-consuming and require complex laboratory data due to the vast search space. In silico methods can accelerate research and substantially reduce costs. Evolutionary algorithms are a promising approach for exploring large search spaces and facilitating the discovery of new peptides. Results This study presents the development and use of a variant of the initial POET algorithm, called P O E T R e g e x , which is based on genetic programming, where individuals are represented by a list of regular expressions. The program was trained on a small curated dataset and employed to predict new peptides that can improve the problem of sensitivity in detecting peptides through magnetic resonance imaging using chemical exchange saturation transfer (CEST). The resulting model achieves a performance gain of 20% over the initial POET variant and is able to predict a candidate peptide with a 58% performance increase compared to the gold-standard peptide. Conclusions By combining the power of genetic programming with the flexibility of regular expressions, new potential peptide targets were identified to improve the sensitivity of detection by CEST. This approach provides a promising research direction for the efficient identification of peptides with therapeutic or diagnostic potential.
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Affiliation(s)
- Nicolas Scalzitti
- BEACON Center of Evolution in Action, Michigan State University, East Lansing, MI, USA
- Department of Computer Science and Engineering, Michigan State University, East Lansing, MI, USA
| | - Iliya Miralavy
- BEACON Center of Evolution in Action, Michigan State University, East Lansing, MI, USA
- Department of Computer Science and Engineering, Michigan State University, East Lansing, MI, USA
| | - David E. Korenchan
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Christian T. Farrar
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Assaf A. Gilad
- BEACON Center of Evolution in Action, Michigan State University, East Lansing, MI, USA
- Department of Chemical Engineering, Michigan State University, East Lansing, MI, USA
- Department of Radiology, Michigan State University, East Lansing, MI, USA
| | - Wolfgang Banzhaf
- BEACON Center of Evolution in Action, Michigan State University, East Lansing, MI, USA
- Department of Computer Science and Engineering, Michigan State University, East Lansing, MI, USA
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Le Q, Lee J, Ko S, Kim H, Vu TY, Choe YS, Oh Y, Shim G. Enzyme-responsive macrocyclic metal complexes for biomedical imaging. Bioeng Transl Med 2023; 8:e10478. [PMID: 37693046 PMCID: PMC10487310 DOI: 10.1002/btm2.10478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 12/05/2022] [Accepted: 12/08/2022] [Indexed: 09/12/2023] Open
Abstract
Metal chelator-based contrast agents are used as tumor navigators for cancer diagnosis. Although approved metal chelators show excellent contrast performance in magnetic resonance imaging (MRI), large doses are required for cancer diagnoses due to rapid clearance and nonspecific accumulation throughout the body, which can compromise safety. The present study describes an enzyme-responsive metal delivery system, in which enzyme overexpressed in the tumor microenvironment selectively activates the tumor uptake of gadolinium (Gd). Gd was loaded into enzyme-responsive macrocyclam (ErMC) modified with a PEGylated enzyme-cleavable peptide resulting in Gd@ErMC. The PEGylated shell layer protected Gd@ErMC from nonspecific binding in the blood, increasing the half-life of the contrast agent. Specific cleavage of the PEGylated shell layer by the enzyme selectively liberated Gd from Gd@ErMC at the tumor site. Evaluation of the in vivo distribution of Gd@ErMC in tumor-bearing mice by MRI and positron emission tomography (PET) showed that Gd@ErMC had an extended half-life and was highly specific. Histological and serological analysis of Gd@ErMC-treated mice showed that this agent was safe. This novel enzyme-responsive contrast agent delivery system shows promise as specific theranostic agent for MR-guided radiotherapy.
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Affiliation(s)
- Quoc‐Viet Le
- Faculty of PharmacyTon Duc Thang UniversityHo Chi Minh CityVietnam
| | - Jaiwoo Lee
- College of Pharmacy and Research Institute of Pharmaceutical SciencesSeoul National UniversitySeoulRepublic of Korea
| | - Seungbeom Ko
- College of Pharmacy and Research Institute of Pharmaceutical SciencesSeoul National UniversitySeoulRepublic of Korea
| | - Hyunjung Kim
- Department of Nuclear Medicine, Samsung Medical CenterSungkyunkwan University School of MedicineSeoulRepublic of Korea
| | - Thien Y Vu
- Faculty of PharmacyTon Duc Thang UniversityHo Chi Minh CityVietnam
| | - Yearn Seong Choe
- Department of Nuclear Medicine, Samsung Medical CenterSungkyunkwan University School of MedicineSeoulRepublic of Korea
- Department of Health Sciences and Technology, SAIHSTSungkyunkwan UniversitySeoulRepublic of Korea
| | - Yu‐Kyoung Oh
- College of Pharmacy and Research Institute of Pharmaceutical SciencesSeoul National UniversitySeoulRepublic of Korea
| | - Gayong Shim
- School of Systems Biomedical Science and Integrative Institute of Basic SciencesSoongsil UniversitySeoulRepublic of Korea
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Reichmann J, Ruhwedel T, Möbius W, Salditt T. Neodymium acetate as a contrast agent for X-ray phase-contrast tomography. J Med Imaging (Bellingham) 2023; 10:056001. [PMID: 37885921 PMCID: PMC10599332 DOI: 10.1117/1.jmi.10.5.056001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 08/08/2023] [Accepted: 10/02/2023] [Indexed: 10/28/2023] Open
Abstract
Purpose X-ray phase-contrast tomography (XPCT) is a non-destructive, three-dimensional imaging modality that provides higher contrast in soft tissue than absorption-based CT and allows one to cover the cytoarchitecture from the centi- and millimeter scale down to the nanoscale. To further increase contrast and resolution of XPCT, for example, in view of addressing connectivity issues in the central nervous system (CNS), metal staining is indispensable. However, currently used protocols, for example, based on osmium and/or uranium are less suited for XPCT, due to an excessive β / δ -ratio. In this work, we explore the suitability of different staining agents for XPCT. Particularly, neodymium(III)-acetate (NdAc), which has recently been proposed as a non-toxic, non-radioactive easy to use alternative contrast agent for uranyl acetate (UAc) in electron microscopy, is investigated. Due to its vertical proximity to UAc in the periodic table, similar chemical but better suited optical properties for phase contrast can be expected. Approach Differently stained whole eye samples of wild type mouse and tissues of the CNS are embedded into EPON epoxy resin and scanned using synchrotron as well as with laboratory radiation. Phase retrieval is performed on the projection images, followed by tomographic reconstruction, which enables a quantitative analysis based on the reconstructed electron densities. Segmentation techniques and rendering software is used to visualize structures of interest in the sample. Results We show that staining neuronal samples with NdAc enhances contrast, in particular for laboratory scans, allowing high-resolution imaging of biological soft tissue in-house. For the example of murine retina, specifically rods and cones as well as the sclera and the Ganglion cell layer seem to be targeted by the stain. A comparison of electron density by the evaluation of histograms allowed to determine quantitative measures to describe the difference between the examined stains. Conclusion The results suggest NdAc to be an effective stain for XPCT, with a preferential binding to anionic groups, such as phosphate and carboxyl groups at cell surfaces, targeting certain layers of the retina with a stronger selectivity compared to other staining agents. Due to the advantageous X-ray optical properties, the stain seems particularly well-suited for phase contrast, with a comparably small number density and an overall superior image quality at laboratory sources.
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Affiliation(s)
| | - Torben Ruhwedel
- Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Wiebke Möbius
- Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Tim Salditt
- Georg-August-University of Göttingen, Göttingen, Germany
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Chen L, Ge S, Chen Y, Zhang TT, Zhu ZH. A feasibility study of 70 kV double low-dose coronary imaging technique in abdomen-fatty patients using dual-source CT. Afr Health Sci 2023; 23:599-606. [PMID: 38357100 PMCID: PMC10862595 DOI: 10.4314/ahs.v23i3.70] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024] Open
Abstract
Objective To investigate the aplication of low contrast agent concentration and low tube voltage in coronary CTA on patients with high BMI (26kg/m228kg/m2). Methods 60 patients with high BMI (26kg/m228kg/m2) were randomly divided into two groups: double low group A (n=30, tube voltage = 70 KV), double low group B (n=30, tube voltage = 70 KV), processed by SAFIRE iterative reconstruction with 270 mgI/ml contrast agent. Conventional group a (n=30, tube voltage = 120 KV), conventional group b (n=30, tube voltage = 120 KV), with filtered back projection (FBP) and 370 mg I/ml contrast agent. the image excellent index (FOM), the effective radiation dose (ED), mean CT value, signal-to-noise ratio (SNR), and contrast-to-noise ratio(CNR) between corresponding groups were compared. Result There was no significant difference in subjective scores of coronary artery image quality between the two high BMI subgroups (P>0.05).The ED of group A (1.103±0.101 mSv) was significantly lower than that of group a (4.663±0.412 mSv) (P<0.001).There was no significant difference in mean CT value, SNR and CNR between the two subgroups (P>0.05).The image excellent index (FOM) of group A was higher than that of group a (P<0.05).The total iodine content and iodine injection rate in group A were lower than those in group a (P<0.001).The difference of subjective scores of coronary artery image quality between the two ultra-high subgroups was significant. The mean CT value, SNR and CNR of group B were lower than those of group b (P<0.05). The images of 14 patients in group B could not meet the diagnosis demand. Conclusion It is feasible to reduce the tube voltage to 70KV in patients with abdominal BMI with high BMI (26Kg/m228Kg/m2), under the same conditions, the 70KV can not meet the daily diagnosis requirement.
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Affiliation(s)
- Lei Chen
- Department of Radiology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huaian 223300, China
| | - Shang Ge
- Department of Radiology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huaian 223300, China
| | - Yuan Chen
- Department of Radiology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huaian 223300, China
| | - Ting-Ting Zhang
- Department of Radiology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huaian 223300, China
| | - Zhao-Huan Zhu
- Department of Radiology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huaian 223300, China
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Qiu QS, Zhu K, Wang JH, Chen XS, Wang WT, Dong SY, Sun W, Rao SX. Diagnostic Performance of Contrast Enhanced CT Alone or in Combination with (Non-)Enhanced MRI for Colorectal Liver Metastasis. Acad Radiol 2023; 30:1856-1865. [PMID: 36481127 DOI: 10.1016/j.acra.2022.11.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 11/02/2022] [Accepted: 11/13/2022] [Indexed: 12/12/2022]
Abstract
RATIONALE AND OBJECTIVES To compare the diagnostic performance of contrast enhanced CT (CE-CT), CE-CT combined with non-enhanced MRI (NE-MRI) or contrast enhanced MRI (CE-MRI) for colorectal liver metastasis (CRLM). MATERIALS AND METHODS Sixty-six colorectal cancer patients with 198 focal liver lesions who underwent preoperative abdominal CE-CT and MRI examinations were included respectively. The images were assessed independently by two readers in three protocols (1: CE-CT, 2: CE-CT+NE-MRI, 3: CE-CT+CE-MRI). The diagnostic performance of each protocol was analyzed by receiver operating characteristic (ROC) curve and the areas under ROC (AUCs) were calculated and compared. RESULTS The detection rates of protocol 2 were 90.9%-92.9% for liver lesions and 86.4%-89.6% for CRLM, and both significantly higher than protocol 1 of 82.8%-85.4% and 76.8%-80.8% (p<0.001-0.001), whereas similar to protocol 3 of 91.9%-94.4% and 87.2%-91.2% (p 0.250-1.000). The AUCs of protocol 2 were greater than protocol 1 for all lesions (0.914-0.934 vs. 0.779-0.799, p<0.001) and lesions < 10mm (0.726-0.776 vs. 0.528-0.561, p<0.001), and were not inferior to that of protocol 3 (0.929-0.949 in all lesions and 0.754-0.821 in lesion < 10mm, p 0.053-0.162). CONCLUSION CE-CT combined with NE-MRI offered superior diagnostic performance for CRLM compared to CE-CT alone and showed comparable performance to CE-CT combined with CE-MRI.
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Affiliation(s)
- Qian-Sai Qiu
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Medical Imaging, Shanghai 200032, P. R. China; Department of Radiology, Affiliated Tumor Hospital of Nantong University, Nantong University, Nantong, P. R. China
| | - Kai Zhu
- Department of Liver Surgery, Zhongshan Hospital, Fudan University, Shanghai P. R. China
| | - Jia-Hui Wang
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Medical Imaging, Shanghai 200032, P. R. China
| | - Xiao-Shan Chen
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Medical Imaging, Shanghai 200032, P. R. China
| | - Wen-Tao Wang
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Medical Imaging, Shanghai 200032, P. R. China; Department of Cancer Center, Zhongshan Hospital Fudan University, Shanghai, 200032, China
| | - San-Yuan Dong
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Medical Imaging, Shanghai 200032, P. R. China
| | - Wei Sun
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Medical Imaging, Shanghai 200032, P. R. China; Department of Cancer Center, Zhongshan Hospital Fudan University, Shanghai, 200032, China
| | - Sheng-Xiang Rao
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Medical Imaging, Shanghai 200032, P. R. China; Department of Cancer Center, Zhongshan Hospital Fudan University, Shanghai, 200032, China.
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Jiang L, Chi J, Wang J, Fang S, Peng T, Quan G, Liu D, Huang Z, Lu C. Superparamagnetic Nanocrystals Clustered Using Poly(ethylene glycol)-Crosslinked Amphiphilic Copolymers for the Diagnosis of Liver Cancer. Pharmaceutics 2023; 15:2205. [PMID: 37765174 PMCID: PMC10535018 DOI: 10.3390/pharmaceutics15092205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/11/2023] [Accepted: 08/17/2023] [Indexed: 09/29/2023] Open
Abstract
Superparamagnetic iron oxide (SPIO) nanocrystals have been extensively studied as theranostic nanoparticles to increase transverse (T2) relaxivity and enhance contrast in magnetic resonance imaging (MRI). To improve the blood circulation time and enhance the diagnostic sensitivity of MRI contrast agents, we developed an amphiphilic copolymer, PCPZL, to effectively encapsulate SPIO nanocrystals. PCPZL was synthesized by crosslinking a polyethylene glycol (PEG)-based homobifunctional linker with a hydrophobic star-like poly(ε-benzyloxycarbonyl-L-lysine) segment. Consequently, it could self-assemble into shell-crosslinked micelles with enhanced colloidal stability in bloodstream circulation. Notably, PCPZL could effectively load SPIO nanocrystals with a high loading capacity of 66.0 ± 0.9%, forming SPIO nanoclusters with a diameter of approximately 100 nm, a high cluster density, and an impressive T2 relaxivity value 5.5 times higher than that of Resovist®. In vivo MRI measurements highlighted the rapid accumulation and contrast effects of SPIO-loaded PCPZL micelles in the livers of both healthy mice and nude mice with an orthotopic hepatocellular carcinoma tumor model. Moreover, the magnetic micelles remarkably enhanced the relative MRI signal difference between the tumor and normal liver tissues. Overall, our findings demonstrate that PCPZL significantly improves the stability and magnetic properties of SPIO nanocrystals, making SPIO-loaded PCPZL micelles promising MRI contrast agents for diagnosing liver diseases and cancers.
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Affiliation(s)
- Ling Jiang
- Department of Pharmacy, Shantou University Medical College, Shantou 515041, China
- College of Pharmacy, Jinan University, Guangzhou 511436, China
| | - Jiaying Chi
- College of Pharmacy, Jinan University, Guangzhou 511436, China
| | - Jiahui Wang
- Department of Pharmacy, Shantou University Medical College, Shantou 515041, China
| | - Shaobin Fang
- The Second Affiliated Hospital of Shantou University Medical College, Shantou 515000, China
| | - Tingting Peng
- College of Pharmacy, Jinan University, Guangzhou 511436, China
| | - Guilan Quan
- College of Pharmacy, Jinan University, Guangzhou 511436, China
| | - Daojun Liu
- Department of Pharmacy, Shantou University Medical College, Shantou 515041, China
| | - Zhongjie Huang
- Department of Radiology, Shenzhen Longhua Maternity and Child Healthcare Hospital, Shenzhen 518109, China
| | - Chao Lu
- College of Pharmacy, Jinan University, Guangzhou 511436, China
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Guirguis N, Zellagui Y, Matoori S. Real-Time Tracking of In Situ-Forming Alginate Hydrogel by Contrast-Enhanced Computed Tomography. AAPS J 2023; 25:79. [PMID: 37552408 DOI: 10.1208/s12248-023-00843-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 07/14/2023] [Indexed: 08/09/2023] Open
Abstract
Hydrogel-based biomaterials have gained broad acceptance for tissue engineering and drug delivery applications. As their function generally depends on their localization, identifying the hydrogel position in the body is relevant and will alert physicians about potentially dangerous hydrogel migration. Monitoring the localization of hydrogels by imaging is challenging due to their high water content. Here, we developed a method to render alginate hydrogels visible on computed tomography (CT) and X-ray for real-time tracking of hydrogels inside the body. This method is based on physically immobilizing emulsion droplets of ethiodized oil, an FDA-approved positive CT contrast agent, in calcium-crosslinked alginate hydrogels. We prepared an oil-in-water emulsion of ethiodized oil with micron-sized emulsion droplets and encapsulated it in a calcium-crosslinked alginate hydrogel. This injectable in situ-forming hydrogel was stable for at least 2 weeks in vitro, visible on CT and X-ray in mice, and showed contrast agent concentration-dependent signal intensities. Hydrogels retrieved from mice after imaging had suitable rheological properties with a storage modulus of about 2 kPa and a loss modulus of about 0.35 kPa. This proof-of-concept study highlights the potential of ethiodized oil to localize hydrogels in real time inside the body and identifies a new use of this FDA-approved contrast agent.
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Affiliation(s)
- Natalie Guirguis
- Faculté de Pharmacie, Université de Montréal, 2940 Chemin de Polytechnique, Montreal, Québec, H3T 1J4, Canada
| | - Yanis Zellagui
- Faculté de Pharmacie, Université de Montréal, 2940 Chemin de Polytechnique, Montreal, Québec, H3T 1J4, Canada
- École Nationale Supérieure de Chimie de Mulhouse, Université de Haute-Alsace, 3 Rue Alfred Werner, 68200, Mulhouse, France
| | - Simon Matoori
- Faculté de Pharmacie, Université de Montréal, 2940 Chemin de Polytechnique, Montreal, Québec, H3T 1J4, Canada.
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Kilian HI, Zhang H, Shiraz Bhurwani MM, Nilam AM, Seong D, Jeon M, Ionita CN, Xia J, Lovell JF. Barium sulfate and pigment admixture for photoacoustic and x-ray contrast imaging of the gut. J Biomed Opt 2023; 28:082803. [PMID: 36776721 PMCID: PMC9917716 DOI: 10.1117/1.jbo.28.8.082803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 01/13/2023] [Indexed: 06/18/2023]
Abstract
Significance X-ray imaging is frequently used for gastrointestinal imaging. Photoacoustic imaging (PAI) of the gastrointestinal tract is an emerging approach that has been demonstrated for preclinical imaging of small animals. A contrast agent active in both modalities could be useful for imaging applications. Aim We aimed to develop a dual-modality contrast agent comprising an admixture of barium sulfate with pigments that absorb light in the second near-infrared region (NIR-II), for preclinical imaging with both x-ray and PAI modalities. Approach Eleven different NIR-II dyes were evaluated after admixture with a 40% w/v barium sulfate mixture. The resulting NIR-II absorption in the soluble fraction and in the total mixture was characterized. Proof-of-principle imaging studies in mice were carried out. Results Pigments that produced more uniform suspensions were assessed further for photoacoustic contrast signal at a wavelength of 1064 nm that corresponds to the output of the Nd:YAG laser used. Phantom imaging studies demonstrated that the pigment-barium sulfate mixture generated imaging contrast in both x-ray and PAI modalities. The optimal pigment selected for further study was a cyanine tetrafluoroborate salt. Ex-vivo and whole-body mouse imaging demonstrated that photoacoustic and x-ray contrast signals co-localized in the intestines for both imaging modalities. Conclusion These data demonstrate that commercially-available NIR-II pigments can simply be admixed with barium sulfate to generate a dual-modality contrast agent appropriate for small animal gastrointestinal imaging.
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Affiliation(s)
- Hailey I Kilian
- University at Buffalo, State University of New York, Department of Biomedical Engineering, Buffalo, New York, United States
| | - Huijuan Zhang
- University at Buffalo, State University of New York, Department of Biomedical Engineering, Buffalo, New York, United States
| | - Mohammad Mahdi Shiraz Bhurwani
- University at Buffalo, State University of New York, Department of Biomedical Engineering, Buffalo, New York, United States
- Canon Stroke and Vascular Research Center, Buffalo, New York, United States
| | - Anoop M Nilam
- University at Buffalo, State University of New York, Department of Biomedical Engineering, Buffalo, New York, United States
| | - Daewoon Seong
- Kyungpook National University, College of IT Engineering, School of Electronic and Electrical Engineering, Daegu, Republic of Korea
| | - Mansik Jeon
- Kyungpook National University, College of IT Engineering, School of Electronic and Electrical Engineering, Daegu, Republic of Korea
| | - Ciprian N Ionita
- University at Buffalo, State University of New York, Department of Biomedical Engineering, Buffalo, New York, United States
- Canon Stroke and Vascular Research Center, Buffalo, New York, United States
| | - Jun Xia
- University at Buffalo, State University of New York, Department of Biomedical Engineering, Buffalo, New York, United States
| | - Jonathan F Lovell
- University at Buffalo, State University of New York, Department of Biomedical Engineering, Buffalo, New York, United States
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Thompson RB, Darquenne C. Magnetic Resonance Imaging of Aerosol Deposition. J Aerosol Med Pulm Drug Deliv 2023; 36:228-234. [PMID: 37523222 DOI: 10.1089/jamp.2023.29087.rbt] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/01/2023] Open
Abstract
Nuclear magnetic resonance imaging (MRI) uses non-ionizing radiation and offers a host of contrast mechanisms with the potential to quantify aerosol deposition. This chapter introduces the physics of MRI, its use in lung imaging, and more specifically, the methods that are used for the detection of regional distributions of inhaled particles. The most common implementation of MRI is based on imaging of hydrogen atoms (1H) in water. The regional deposition of aerosol particles can be measured by the perturbation of the acquired 1H signals via labeling of the aerosol with contrast agents. Existing in vitro human and in vivo animal model measurements of regional aerosol deposition in the respiratory tract are described, demonstrating the capability of MRI to assess aerosol deposition in the lung.
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Affiliation(s)
- Richard B Thompson
- Department of Biomedical Engineering, University of Alberta, Edmonton, Alberta, Canada
| | - Chantal Darquenne
- Department of Medicine, University of California San Diego, San Diego, California, USA
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Li Z, Bai R, Yi J, Zhou H, Xian J, Chen C. Designing Smart Iron Oxide Nanoparticles for MR Imaging of Tumors. Chem Biomed Eng 2023; 1:315-339. [PMID: 37501794 PMCID: PMC10369497 DOI: 10.1021/cbmi.3c00026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 04/14/2023] [Accepted: 04/21/2023] [Indexed: 07/29/2023]
Abstract
Iron oxide nanoparticles (IONPs) possess unique magnetism and good biocompatibility, and they have been widely applied as contrast agents (CAs) for magnetic resonance imaging (MRI). Traditional CAs typically show a fixed enhanced signal, thus exhibiting the limitations of low sensitivity and a lack of specificity. Nowadays, the progress of stimulus-responsive IONPs allows alteration of the relaxation signal in response to internal stimuli of the tumor, or external stimuli, thus providing an opportunity to overcome those limitations. This review summarizes the current status of smart IONPs as tumor imaging MRI CAs that exhibit responsiveness to endogenous stimuli, such as pH, hypoxia, glutathione, and enzymes, or exogenous stimuli, such as magnets, light, and so on. We discuss the challenges and future opportunities for IONPs as MRI CAs and comprehensively illustrate the applications of these stimuli-responsive IONPs. This review will help provide guidance for designing IONPs as MRI CAs and further promote the reasonable design of magnetic nanoparticles and achieve early and accurate tumor detection.
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Affiliation(s)
- Zhenzhen Li
- CAS
Key Laboratory for Biomedical Effects of Nanoparticles and Nanosafety
& CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
- Department
of Radiology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Ru Bai
- CAS
Key Laboratory for Biomedical Effects of Nanoparticles and Nanosafety
& CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
- Research
Unit of Nanoscience and Technology, Chinese
Academy of Medical Sciences, Beijing 100021, China
| | - Jia Yi
- Guangdong
Provincial Development and Reform Commission, Guangzhou 510031, China
| | - Huige Zhou
- CAS
Key Laboratory for Biomedical Effects of Nanoparticles and Nanosafety
& CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
- Research
Unit of Nanoscience and Technology, Chinese
Academy of Medical Sciences, Beijing 100021, China
| | - Junfang Xian
- Department
of Radiology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Chunying Chen
- CAS
Key Laboratory for Biomedical Effects of Nanoparticles and Nanosafety
& CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
- Research
Unit of Nanoscience and Technology, Chinese
Academy of Medical Sciences, Beijing 100021, China
- The
GBA National Institute for Nanotechnology Innovation, Guangzhou 510700, China
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Jin BB, Ma Y, Zhao XH, Teng YL, Zhu SY. Risk Factors of Contrast Agent Intravasation With Sulfur Hexafluoride Microbubble During Hysterosalpingo-Contrast Sonography. J Ultrasound Med 2023; 42:1587-1594. [PMID: 36637120 DOI: 10.1002/jum.16179] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 12/29/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
OBJECTIVES To analyze the risk factors of sulfur hexafluoride microbubble contrast agent intravasation during hysterosalpingo-contrast sonography (HyCoSy), and to explore a simple prediction model by the obvious clinical history. METHODS This was a retrospective study included 299 infertility women who had undergone HyCoSy examination from July 1, 2018 to June 31, 2019. The factors were recorded, including age, endometrial thickness, balloon length, infertility type, history of intrauterine surgery, history of pelvic surgery, and tubal patency. The method of multivariate logistic regression analysis was adopted to analyze the risk factors affecting the contrast agent intravasation, and the receiver operating characteristic curves were plotted to test their efficacy. RESULTS Secondary infertility, a history of intrauterine surgery, thin endometrial thickness, and tubal obstruction were all risk factors of the occurrence of intravasation (P < .05). And the area under the receiver operating characteristic curves of the multifactor-combined prediction model of the intravasation was significantly larger than that of single-factor. CONCLUSIONS Sonographers and gynecologists should be familiar with the risk factors of intravasation and select the appropriate timing of HyCoSy toward reducing the occurrence of intravasation and other complications after thoroughly explaining and communicating with the patients.
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Affiliation(s)
- Bin-Bin Jin
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yan Ma
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Xiu-Hua Zhao
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yi-Ling Teng
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Shang-Yong Zhu
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
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