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Tajaldeen A, Alrashidi M, Alsaadi MJ, Alghamdi SS, Alshammari H, Alsleem H, Jafer M, Aljondi R, Alqahtani S, Alotaibi A, Alzandi AM, Alahmari AM. Photoacoustic imaging in prostate cancer: A new paradigm for diagnosis and management. Photodiagnosis Photodyn Ther 2024; 47:104225. [PMID: 38821240 DOI: 10.1016/j.pdpdt.2024.104225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/24/2024] [Accepted: 05/28/2024] [Indexed: 06/02/2024]
Abstract
The global health issue of prostate cancer (PCa) requires better diagnosis and treatment. Photoacoustic imaging (PAI) may change PCa management. This review examines PAI's principles, diagnostic role, and therapeutic guidance. PAI uses optical light excitation and ultrasonic detection for high-resolution functional and molecular imaging. PAI uses endogenous and exogenous contrast agents to distinguish cancerous and benign prostate tissues with greater sensitivity and specificity than PSA testing and TRUS-guided biopsy. In addition to diagnosing, PAI can guide and monitor PCa therapy. Its real-time imaging allows precise biopsies and brachytherapy seed placement. Photoacoustic temperature imaging allows non-invasive monitoring of thermal therapies like cryotherapy, improving treatment precision and success. Transurethral illumination probes, innovative contrast agents, integration with other imaging modalities, and machine learning analysis are being developed to overcome depth and data complexity restrictions. PAI could become an essential tool for PCa diagnosis and therapeutic guidance as the field advances.
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Affiliation(s)
- Abdulrahman Tajaldeen
- Department of Radiologic Technology, College of Applied Medical Sciences, University of Jeddah, Jeddah 21959, Saudi Arabia.
| | - Muteb Alrashidi
- Department of Radiological Sciences, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam 34212, Saudi Arabia
| | - Mohamed J Alsaadi
- Radiology and Medical Imaging Department, College of Applied Medical Sciences, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Salem Saeed Alghamdi
- Department of Radiologic Technology, College of Applied Medical Sciences, University of Jeddah, Jeddah 21959, Saudi Arabia
| | - Hamed Alshammari
- Department of Radiological Sciences, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam 34212, Saudi Arabia
| | - Haney Alsleem
- Department of Radiological Sciences, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam 34212, Saudi Arabia
| | - Mustafa Jafer
- Department of Radiologic Technology, College of Applied Medical Sciences, University of Jeddah, Jeddah 21959, Saudi Arabia
| | - Rowa Aljondi
- Department of Radiologic Technology, College of Applied Medical Sciences, University of Jeddah, Jeddah 21959, Saudi Arabia
| | - Saeed Alqahtani
- Radiological Sciences Department, College of Applied Medical Sciences, Najran University, Najran, Saudi Arabia
| | - Awatif Alotaibi
- Department of Radiological Sciences, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam 34212, Saudi Arabia
| | - Abdulrahman M Alzandi
- Department of Radiological Sciences, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam 34212, Saudi Arabia
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2
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Zafar M, Manwar R, Avanaki K. Miniaturized preamplifier integration in ultrasound transducer design for enhanced photoacoustic imaging. OPTICS LETTERS 2024; 49:3054-3057. [PMID: 38824326 DOI: 10.1364/ol.512445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 04/24/2024] [Indexed: 06/03/2024]
Abstract
Photoacoustic imaging (PAI) utilizes the photoacoustic effect to record both vascular and functional characteristics of a biological tissue. Photoacoustic signals have typically low amplitude that cannot be read efficiently by data acquisition systems. This necessitates the use of one or more amplifiers. These amplifiers are somewhat bulky (e.g., the ZFL-500LN+, Mini-Circuits, USA, or 351A-3-50-NI, Analog Modules Inc., USA). Here, we describe the fabrication and development process of a transducer with a built-in low-noise preamplifier that is encased within the transducer housing. This new, to the best of our knowledge, design could be advantageous for applications where a compact transducer + preamplifier is required. We demonstrate the performance of this compact detection unit in a laser scanning photoacoustic microscopy system by imaging a rat ear ex vivo and a rat brain vasculature in vivo.
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3
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Hajfathalian M, Mossburg KJ, Radaic A, Woo KE, Jonnalagadda P, Kapila Y, Bollyky PL, Cormode DP. A review of recent advances in the use of complex metal nanostructures for biomedical applications from diagnosis to treatment. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2024; 16:e1959. [PMID: 38711134 PMCID: PMC11114100 DOI: 10.1002/wnan.1959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 03/31/2024] [Accepted: 04/01/2024] [Indexed: 05/08/2024]
Abstract
Complex metal nanostructures represent an exceptional category of materials characterized by distinct morphologies and physicochemical properties. Nanostructures with shape anisotropies, such as nanorods, nanostars, nanocages, and nanoprisms, are particularly appealing due to their tunable surface plasmon resonances, controllable surface chemistries, and effective targeting capabilities. These complex nanostructures can absorb light in the near-infrared, enabling noteworthy applications in nanomedicine, molecular imaging, and biology. The engineering of targeting abilities through surface modifications involving ligands, antibodies, peptides, and other agents potentiates their effects. Recent years have witnessed the development of innovative structures with diverse compositions, expanding their applications in biomedicine. These applications encompass targeted imaging, surface-enhanced Raman spectroscopy, near-infrared II imaging, catalytic therapy, photothermal therapy, and cancer treatment. This review seeks to provide the nanomedicine community with a thorough and informative overview of the evolving landscape of complex metal nanoparticle research, with a specific emphasis on their roles in imaging, cancer therapy, infectious diseases, and biofilm treatment. This article is categorized under: Diagnostic Tools > In Vivo Nanodiagnostics and Imaging Therapeutic Approaches and Drug Discovery > Nanomedicine for Infectious Disease Diagnostic Tools > Diagnostic Nanodevices.
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Affiliation(s)
- Maryam Hajfathalian
- Department of Biomedical Engineering, New Jersey Institute of Technology, University Heights, Newark, NJ 07102
- Division of Infectious Diseases, School of Medicine, Stanford University, Stanford, CA 94305
| | - Katherine J. Mossburg
- Department of Radiology, University of Pennsylvania, 3400 Spruce Street, 1 Silverstein, Philadelphia, Pennsylvania 19104, United States
| | - Allan Radaic
- School of Dentistry, University of California Los Angeles
| | - Katherine E. Woo
- Division of Infectious Diseases, School of Medicine, Stanford University, Stanford, CA 94305
| | - Pallavi Jonnalagadda
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Yvonne Kapila
- School of Dentistry, University of California Los Angeles
| | - Paul L. Bollyky
- Division of Infectious Diseases, Department of Medicine, Stanford University
| | - David P. Cormode
- Department of Radiology, Department of Bioengineering, University of Pennsylvania
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Wang Y, Chen Y, Zhao Y, Liu S. Compressed Sensing for Biomedical Photoacoustic Imaging: A Review. SENSORS (BASEL, SWITZERLAND) 2024; 24:2670. [PMID: 38732775 PMCID: PMC11085525 DOI: 10.3390/s24092670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 04/19/2024] [Accepted: 04/21/2024] [Indexed: 05/13/2024]
Abstract
Photoacoustic imaging (PAI) is a rapidly developing emerging non-invasive biomedical imaging technique that combines the strong contrast from optical absorption imaging and the high resolution from acoustic imaging. Abnormal biological tissues (such as tumors and inflammation) generate different levels of thermal expansion after absorbing optical energy, producing distinct acoustic signals from normal tissues. This technique can detect small tissue lesions in biological tissues and has demonstrated significant potential for applications in tumor research, melanoma detection, and cardiovascular disease diagnosis. During the process of collecting photoacoustic signals in a PAI system, various factors can influence the signals, such as absorption, scattering, and attenuation in biological tissues. A single ultrasound transducer cannot provide sufficient information to reconstruct high-precision photoacoustic images. To obtain more accurate and clear image reconstruction results, PAI systems typically use a large number of ultrasound transducers to collect multi-channel signals from different angles and positions, thereby acquiring more information about the photoacoustic signals. Therefore, to reconstruct high-quality photoacoustic images, PAI systems require a significant number of measurement signals, which can result in substantial hardware and time costs. Compressed sensing is an algorithm that breaks through the Nyquist sampling theorem and can reconstruct the original signal with a small number of measurement signals. PAI based on compressed sensing has made breakthroughs over the past decade, enabling the reconstruction of low artifacts and high-quality images with a small number of photoacoustic measurement signals, improving time efficiency, and reducing hardware costs. This article provides a detailed introduction to PAI based on compressed sensing, such as the physical transmission model-based compressed sensing method, two-stage reconstruction-based compressed sensing method, and single-pixel camera-based compressed sensing method. Challenges and future perspectives of compressed sensing-based PAI are also discussed.
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Affiliation(s)
- Yuanmao Wang
- School of Physics, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yang Chen
- School of Physics, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yongjian Zhao
- Department of Electronic Engineering, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Siyu Liu
- School of Physics, Nanjing University of Science and Technology, Nanjing 210094, China
- Southwest Institute of Technical Physics, Chengdu 610041, China
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Nguyen VP, Hu J, Zhe J, Ramasamy S, Ahmed U, Paulus YM. Advanced nanomaterials for imaging of eye diseases. ADMET AND DMPK 2024; 12:269-298. [PMID: 38720929 PMCID: PMC11075159 DOI: 10.5599/admet.2182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 02/16/2024] [Indexed: 05/12/2024] Open
Abstract
Background and purpose Vision impairment and blindness present significant global challenges, with common causes including age-related macular degeneration, diabetes, retinitis pigmentosa, and glaucoma. Advanced imaging tools, such as optical coherence tomography, fundus photography, photoacoustic microscopy, and fluorescence imaging, play a crucial role in improving therapeutic interventions and diagnostic methods. Contrast agents are often employed with these tools to enhance image clarity and signal detection. This review aims to explore the commonly used contrast agents in ocular disease imaging. Experimental approach The first section of the review delves into advanced ophthalmic imaging techniques, outlining their importance in addressing vision-related issues. The emphasis is on the efficacy of therapeutic interventions and diagnostic methods, establishing a foundation for the subsequent exploration of contrast agents. Key results This review focuses on the role of contrast agents, with a specific emphasis on gold nanoparticles, particularly gold nanorods. The discussion highlights how these contrast agents optimize imaging in ocular disease diagnosis and monitoring, emphasizing their unique properties that enhance signal detection and imaging precision. Conclusion The final section, we explores both organic and inorganic contrast agents and their applications in specific conditions such as choroidal neovascularization, retinal neovascularization, and stem cell tracking. The review concludes by addressing the limitations of current contrast agent usage and discussing potential future clinical applications. This comprehensive exploration contributes to advancing our understanding of contrast agents in ocular disease imaging and sets the stage for further research and development in the field.
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Affiliation(s)
- Van Phuc Nguyen
- Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, MI 48105, USA
| | - Justin Hu
- Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, MI 48105, USA
| | - Josh Zhe
- Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, MI 48105, USA
| | - Sanjay Ramasamy
- Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, MI 48105, USA
| | - Umayr Ahmed
- Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, MI 48105, USA
| | - Yannis M. Paulus
- Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, MI 48105, USA
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48105, USA
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6
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Cho SW, Nguyen VT, DiSpirito A, Yang J, Kim CS, Yao J. Sounding out the dynamics: a concise review of high-speed photoacoustic microscopy. JOURNAL OF BIOMEDICAL OPTICS 2024; 29:S11521. [PMID: 38323297 PMCID: PMC10846286 DOI: 10.1117/1.jbo.29.s1.s11521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/15/2023] [Accepted: 01/11/2024] [Indexed: 02/08/2024]
Abstract
Significance Photoacoustic microscopy (PAM) offers advantages in high-resolution and high-contrast imaging of biomedical chromophores. The speed of imaging is critical for leveraging these benefits in both preclinical and clinical settings. Ongoing technological innovations have substantially boosted PAM's imaging speed, enabling real-time monitoring of dynamic biological processes. Aim This concise review synthesizes historical context and current advancements in high-speed PAM, with an emphasis on developments enabled by ultrafast lasers, scanning mechanisms, and advanced imaging processing methods. Approach We examine cutting-edge innovations across multiple facets of PAM, including light sources, scanning and detection systems, and computational techniques and explore their representative applications in biomedical research. Results This work delineates the challenges that persist in achieving optimal high-speed PAM performance and forecasts its prospective impact on biomedical imaging. Conclusions Recognizing the current limitations, breaking through the drawbacks, and adopting the optimal combination of each technology will lead to the realization of ultimate high-speed PAM for both fundamental research and clinical translation.
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Affiliation(s)
- Soon-Woo Cho
- Duke University, Department of Biomedical Engineering, Durham, North Carolina, United States
- Pusan National University, Engineering Research Center for Color-Modulated Extra-Sensory Perception Technology, Busan, Republic of Korea
| | - Van Tu Nguyen
- Duke University, Department of Biomedical Engineering, Durham, North Carolina, United States
| | - Anthony DiSpirito
- Duke University, Department of Biomedical Engineering, Durham, North Carolina, United States
| | - Joseph Yang
- Duke University, Department of Biomedical Engineering, Durham, North Carolina, United States
| | - Chang-Seok Kim
- Pusan National University, Engineering Research Center for Color-Modulated Extra-Sensory Perception Technology, Busan, Republic of Korea
| | - Junjie Yao
- Duke University, Department of Biomedical Engineering, Durham, North Carolina, United States
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Kim M, Pelivanov I, O'Donnell M. Review of Deep Learning Approaches for Interleaved Photoacoustic and Ultrasound (PAUS) Imaging. IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 2023; 70:1591-1606. [PMID: 37910419 PMCID: PMC10788151 DOI: 10.1109/tuffc.2023.3329119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Photoacoustic (PA) imaging provides optical contrast at relatively large depths within the human body, compared to other optical methods, at ultrasound (US) spatial resolution. By integrating real-time PA and US (PAUS) modalities, PAUS imaging has the potential to become a routine clinical modality bringing the molecular sensitivity of optics to medical US imaging. For applications where the full capabilities of clinical US scanners must be maintained in PAUS, conventional limited view and bandwidth transducers must be used. This approach, however, cannot provide high-quality maps of PA sources, especially vascular structures. Deep learning (DL) using data-driven modeling with minimal human design has been very effective in medical imaging, medical data analysis, and disease diagnosis, and has the potential to overcome many of the technical limitations of current PAUS imaging systems. The primary purpose of this article is to summarize the background and current status of DL applications in PAUS imaging. It also looks beyond current approaches to identify remaining challenges and opportunities for robust translation of PAUS technologies to the clinic.
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8
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Jhunjhunwala A, Kim J, Kubelick KP, Ethier CR, Emelianov SY. In Vivo Photoacoustic Monitoring of Stem Cell Location and Apoptosis with Caspase-3-Responsive Nanosensors. ACS NANO 2023; 17:17931-17945. [PMID: 37703202 PMCID: PMC10540261 DOI: 10.1021/acsnano.3c04161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 09/06/2023] [Indexed: 09/15/2023]
Abstract
Stem cell therapy has immense potential in a variety of regenerative medicine applications. However, clinical stem cell therapy is severely limited by challenges in assessing the location and functional status of implanted cells in vivo. Thus, there is a great need for longitudinal, noninvasive stem cell monitoring. Here we introduce a multidisciplinary approach combining nanosensor-augmented stem cell labeling with ultrasound guided photoacoustic (US/PA) imaging for the spatial tracking and functional assessment of transplanted stem cell fate. Specifically, our nanosensor incorporates a peptide sequence that is selectively cleaved by caspase-3, the primary effector enzyme in mammalian cell apoptosis; this cleavage event causes labeled cells to show enhanced optical absorption in the first near-infrared (NIR) window. Optimization of labeling protocols and spectral characterization of the nanosensor in vitro showed a 2.4-fold increase in PA signal from labeled cells during apoptosis while simultaneously permitting cell localization. We then successfully tracked the location and apoptotic status of mesenchymal stem cells in a mouse hindlimb ischemia model for 2 weeks in vivo, demonstrating a 4.8-fold increase in PA signal and spectral slope changes in the first NIR window under proapoptotic (ischemic) conditions. We conclude that our nanosensor allows longitudinal, noninvasive, and nonionizing monitoring of stem cell location and apoptosis, which is a significant improvement over current end-point monitoring methods such as biopsies and histological staining of excised tissue.
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Affiliation(s)
- Anamik Jhunjhunwala
- Wallace
H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, Georgia 30332, United States
| | - Jinhwan Kim
- Wallace
H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, Georgia 30332, United States
- School
of Electrical & Computer Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Kelsey P. Kubelick
- Wallace
H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, Georgia 30332, United States
- School
of Electrical & Computer Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - C. Ross Ethier
- Wallace
H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, Georgia 30332, United States
| | - Stanislav Y. Emelianov
- Wallace
H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, Georgia 30332, United States
- School
of Electrical & Computer Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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Sankepalle DM, Anthony B, Mallidi S. Visual inertial odometry enabled 3D ultrasound and photoacoustic imaging. BIOMEDICAL OPTICS EXPRESS 2023; 14:2756-2772. [PMID: 37342691 PMCID: PMC10278605 DOI: 10.1364/boe.489614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 05/04/2023] [Accepted: 05/04/2023] [Indexed: 06/23/2023]
Abstract
There is an increasing need for 3D ultrasound and photoacoustic (USPA) imaging technology for real-time monitoring of dynamic changes in vasculature or molecular markers in various malignancies. Current 3D USPA systems utilize expensive 3D transducer arrays, mechanical arms or limited-range linear stages to reconstruct the 3D volume of the object being imaged. In this study, we developed, characterized, and demonstrated an economical, portable, and clinically translatable handheld device for 3D USPA imaging. An off-the-shelf, low-cost visual odometry system (the Intel RealSense T265 camera equipped with simultaneous localization and mapping technology) to track free hand movements during imaging was attached to the USPA transducer. Specifically, we integrated the T265 camera into a commercially available USPA imaging probe to acquire 3D images and compared it to the reconstructed 3D volume acquired using a linear stage (ground truth). We were able to reliably detect 500 µm step sizes with 90.46% accuracy. Various users evaluated the potential of handheld scanning, and the volume calculated from the motion-compensated image was not significantly different from the ground truth. Overall, our results, for the first time, established the use of an off-the-shelf and low-cost visual odometry system for freehand 3D USPA imaging that can be seamlessly integrated into several photoacoustic imaging systems for various clinical applications.
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Affiliation(s)
| | - Brian Anthony
- Institute of Medical Engineering and Sciences, Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Srivalleesha Mallidi
- Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA
- Wellman Center for Photomedicine, Harvard Medical School, Boston, MA, 02115, USA
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Verkhovskii RA, Ivanov AN, Lengert EV, Tulyakova KA, Shilyagina NY, Ermakov AV. Current Principles, Challenges, and New Metrics in pH-Responsive Drug Delivery Systems for Systemic Cancer Therapy. Pharmaceutics 2023; 15:pharmaceutics15051566. [PMID: 37242807 DOI: 10.3390/pharmaceutics15051566] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/19/2023] [Accepted: 05/20/2023] [Indexed: 05/28/2023] Open
Abstract
The paradigm of drug delivery via particulate formulations is one of the leading ideas that enable overcoming limitations of traditional chemotherapeutic agents. The trend toward more complex multifunctional drug carriers is well-traced in the literature. Nowadays, the prospectiveness of stimuli-responsive systems capable of controlled cargo release in the lesion nidus is widely accepted. Both endogenous and exogenous stimuli are employed for this purpose; however, endogenous pH is the most common trigger. Unfortunately, scientists encounter multiple challenges on the way to the implementation of this idea related to the vehicles' accumulation in off-target tissues, their immunogenicity, the complexity of drug delivery to intracellular targets, and finally, the difficulties in the fabrication of carriers matching all imposed requirements. Here, we discuss fundamental strategies for pH-responsive drug delivery, as well as limitations related to such carriers' application, and reveal the main problems, weaknesses, and reasons for poor clinical results. Moreover, we attempted to formulate the profiles of an "ideal" drug carrier in the frame of different strategies drawing on the example of metal-comprising materials and considered recently published studies through the lens of these profiles. We believe that this approach will facilitate the formulation of the main challenges facing researchers and the identification of the most promising trends in technology development.
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Affiliation(s)
- Roman A Verkhovskii
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia
| | - Alexey N Ivanov
- Central Research Laboratory, Saratov State Medical University of V. I. Razumovsky, Ministry of Health of the Russian Federation, 410012 Saratov, Russia
| | - Ekaterina V Lengert
- Central Research Laboratory, Saratov State Medical University of V. I. Razumovsky, Ministry of Health of the Russian Federation, 410012 Saratov, Russia
- Institute of Molecular Theranostics, I. M. Sechenov First Moscow State Medical University, 8 Trubetskaya Str., 119991 Moscow, Russia
| | - Ksenia A Tulyakova
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Ave., 603950 Nizhny Novgorod, Russia
| | - Natalia Yu Shilyagina
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Ave., 603950 Nizhny Novgorod, Russia
| | - Alexey V Ermakov
- Central Research Laboratory, Saratov State Medical University of V. I. Razumovsky, Ministry of Health of the Russian Federation, 410012 Saratov, Russia
- Institute of Molecular Theranostics, I. M. Sechenov First Moscow State Medical University, 8 Trubetskaya Str., 119991 Moscow, Russia
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Seiler SJ, Neuschler EI, Butler RS, Lavin PT, Dogan BE. Optoacoustic Imaging With Decision Support for Differentiation of Benign and Malignant Breast Masses: A 15-Reader Retrospective Study. AJR Am J Roentgenol 2023; 220:646-658. [PMID: 36475811 DOI: 10.2214/ajr.22.28470] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND. Overlap in ultrasound features of benign and malignant breast masses yields high rates of false-positive interpretations and benign biopsy results. Optoacoustic imaging is an ultrasound-based functional imaging technique that can increase specificity. OBJECTIVE. The purpose of this study was to compare specificity at fixed sensitivity of ultrasound images alone and of fused ultrasound and optoacoustic images evaluated with machine learning-based decision support tool (DST) assistance. METHODS. This retrospective Reader-02 study included 480 patients (mean age, 49.9 years) with 480 breast masses (180 malignant, 300 benign) that had been classified as BI-RADS category 3-5 on the basis of conventional gray-scale ultrasound findings. The patients were selected by stratified random sampling from the earlier prospective 16-site Pioneer-01 study. For that study, masses were further evaluated by ultrasound alone followed by fused ultrasound and optoacoustic imaging between December 2012 and September 2015. For the current study, 15 readers independently reviewed the previously acquired images after training in optoacoustic imaging interpretation. Readers first assigned probability of malignancy (POM) on the basis of clinical history, mammographic findings, and conventional ultrasound findings. Readers then evaluated fused ultrasound and optoacoustic images, assigned scores for ultrasound and optoacoustic imaging features, and viewed a POM prediction score derived by a machine learning-based DST before issuing final POM. Individual and mean specificities at fixed sensitivity of 98% and partial AUC (pAUC) (95-100% sensitivity) were calculated. RESULTS. Averaged across all readers, specificity at fixed sensitivity of 98% was significantly higher for fused ultrasound and optoacoustic imaging with DST assistance than for ultrasound alone (47.2% vs 38.2%; p = .03). Across all readers, pAUC was higher (p < .001) for fused ultrasound and optoacoustic imaging with DST assistance (0.024 [95% CI, 0.023-0.026]) than for ultrasound alone (0.021 [95% CI, 0.019-0.022]). Better performance using fused ultrasound and optoacoustic imaging with DST assistance than using ultrasound alone was observed for 14 of 15 readers for specificity at fixed sensitivity and for 15 of 15 readers for pAUC. CONCLUSION. Fused ultrasound and optoacoustic imaging with DST assistance had significantly higher specificity at fixed sensitivity than did conventional ultrasound alone. CLINICAL IMPACT. Optoacoustic imaging, integrated with reader training and DST assistance, may help reduce the frequency of biopsy of benign breast masses.
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Affiliation(s)
- Stephen J Seiler
- Department of Radiology, UT Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas, TX 75390-8585
| | - Erin I Neuschler
- Department of Radiology, University of Illinois College of Medicine, Chicago, IL
| | - Reni S Butler
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT
| | - Philip T Lavin
- Boston Biostatistics Research Foundation, Framingham, MA
| | - Basak E Dogan
- Department of Radiology, UT Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas, TX 75390-8585
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12
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Ren D, Yin Y, Li C, Chen R, Shi J. Recent Advances in Flexible Ultrasonic Transducers: From Materials Optimization to Imaging Applications. MICROMACHINES 2023; 14:126. [PMID: 36677187 PMCID: PMC9866268 DOI: 10.3390/mi14010126] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/27/2022] [Accepted: 12/28/2022] [Indexed: 06/17/2023]
Abstract
Ultrasonic (US) transducers have been widely used in the field of ultrasonic and photoacoustic imaging system in recent years, to convert acoustic and electrical signals into each other. As the core part of imaging systems, US transducers have been extensively studied and achieved remarkable progress recently. Imaging systems employing conventional rigid US transducers impose certain constraints, such as not being able to conform to complex surfaces and comfortably come into contact with skin and the sample, and meet the applications of continuous monitoring and diagnosis. To overcome these drawbacks, significant effort has been made in transforming the rigid US transducers to become flexible and wearable. Flexible US transducers ensure self-alignment to complex surfaces and maximize the transferred US energy, resulting in high quality detection performance. The advancement in flexible US transducers has further extended the application range of imaging systems. This review is intended to summarize the most recent advances in flexible US transducers, including advanced functional materials optimization, representative US transducers designs and practical applications in imaging systems. Additionally, the potential challenges and future directions of the development of flexible US transducers are also discussed.
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Barbosa RCS, Mendes PM. A Comprehensive Review on Photoacoustic-Based Devices for Biomedical Applications. SENSORS (BASEL, SWITZERLAND) 2022; 22:9541. [PMID: 36502258 PMCID: PMC9736954 DOI: 10.3390/s22239541] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/02/2022] [Accepted: 12/03/2022] [Indexed: 06/17/2023]
Abstract
The photoacoustic effect is an emerging technology that has sparked significant interest in the research field since an acoustic wave can be produced simply by the incidence of light on a material or tissue. This phenomenon has been extensively investigated, not only to perform photoacoustic imaging but also to develop highly miniaturized ultrasound probes that can provide biologically meaningful information. Therefore, this review aims to outline the materials and their fabrication process that can be employed as photoacoustic targets, both biological and non-biological, and report the main components' features to achieve a certain performance. When designing a device, it is of utmost importance to model it at an early stage for a deeper understanding and to ease the optimization process. As such, throughout this article, the different methods already implemented to model the photoacoustic effect are introduced, as well as the advantages and drawbacks inherent in each approach. However, some remaining challenges are still faced when developing such a system regarding its fabrication, modeling, and characterization, which are also discussed.
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Yadav S, Senapati S, Kumar S, Gahlaut SK, Singh JP. GLAD Based Advanced Nanostructures for Diversified Biosensing Applications: Recent Progress. BIOSENSORS 2022; 12:1115. [PMID: 36551082 PMCID: PMC9775079 DOI: 10.3390/bios12121115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/18/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
Glancing angle deposition (GLAD) is a technique for the fabrication of sculpted micro- and nanostructures under the conditions of oblique vapor flux incident and limited adatom diffusion. GLAD-based nanostructures are emerging platforms with broad sensing applications due to their high sensitivity, enhanced optical and catalytic properties, periodicity, and controlled morphology. GLAD-fabricated nanochips and substrates for chemical and biosensing applications are replacing conventionally used nanomaterials due to their broad scope, ease of fabrication, controlled growth parameters, and hence, sensing abilities. This review focuses on recent advances in the diverse nanostructures fabricated via GLAD and their applications in the biomedical field. The effects of morphology and deposition conditions on GLAD structures, their biosensing capability, and the use of these nanostructures for various biosensing applications such as surface plasmon resonance (SPR), fluorescence, surface-enhanced Raman spectroscopy (SERS), and colorimetric- and wettability-based bio-detection will be discussed in detail. GLAD has also found diverse applications in the case of molecular imaging techniques such as fluorescence, super-resolution, and photoacoustic imaging. In addition, some in vivo applications, such as drug delivery, have been discussed. Furthermore, we will also provide an overview of the status of GLAD technology as well as future challenges associated with GLAD-based nanostructures in the mentioned areas.
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Affiliation(s)
- Sarjana Yadav
- Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Sneha Senapati
- School of Interdisciplinary Research, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Samir Kumar
- Department of Electronics and Information Engineering, Korea University, Sejong 30019, Republic of Korea
| | - Shashank K. Gahlaut
- Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Jitendra P. Singh
- Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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15
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Zou Y, Amidi E, Luo H, Zhu Q. Ultrasound-enhanced Unet model for quantitative photoacoustic tomography of ovarian lesions. PHOTOACOUSTICS 2022; 28:100420. [PMID: 36325304 PMCID: PMC9619170 DOI: 10.1016/j.pacs.2022.100420] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 10/04/2022] [Accepted: 10/24/2022] [Indexed: 05/17/2023]
Abstract
Quantitative photoacoustic tomography (QPAT) is a valuable tool in characterizing ovarian lesions for accurate diagnosis. However, accurately reconstructing a lesion's optical absorption distributions from photoacoustic signals measured with multiple wavelengths is challenging because it involves an ill-posed inverse problem with three unknowns: the Grüneisen parameter ( Γ ) , the absorption distribution, and the optical fluence ( ϕ ) . Here, we propose a novel ultrasound-enhanced Unet model (US-Unet) that reconstructs optical absorption distribution from PAT data. A pre-trained ResNet-18 extracts the US features typically identified as morphologies of suspicious ovarian lesions, and a Unet is implemented to reconstruct optical absorption coefficient maps, using the initial pressure and US features extracted by ResNet-18. To test this US-Unet model, we calculated the blood oxygenation saturation values and total hemoglobin concentrations from 655 regions of interest (ROIs) (421 benign, 200 malignant, and 34 borderline ROIs) obtained from clinical images of 35 patients with ovarian/adnexal lesions. A logistic regression model was used to compute the ROC, the area under the ROC curve (AUC) was 0.94, and the accuracy was 0.89. To the best of our knowledge, this is the first study to reconstruct quantitative PAT with PA signals and US-based structural features.
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Affiliation(s)
- Yun Zou
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, USA
| | - Eghbal Amidi
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, USA
| | - Hongbo Luo
- Department of Electrical and System Engineering, Washington University in St. Louis, St. Louis, MO, USA
| | - Quing Zhu
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, USA
- Department of Radiology, Washington University in St. Louis School of Medicine, St. Louis, MO, USA
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16
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Nguyen A, Kumar S, Kulkarni AA. Nanotheranostic Strategies for Cancer Immunotherapy. SMALL METHODS 2022; 6:e2200718. [PMID: 36382571 PMCID: PMC11056828 DOI: 10.1002/smtd.202200718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 09/13/2022] [Indexed: 06/16/2023]
Abstract
Despite advancements in cancer immunotherapy, heterogeneity in tumor response impose barriers to successful treatments and accurate prognosis. Effective therapy and early outcome detection are critical as toxicity profiles following immunotherapies can severely affect patients' quality of life. Existing imaging techniques, including positron emission tomography, computed tomography, magnetic resonance imaging, or multiplexed imaging, are often used in clinics yet suffer from limitations in the early assessment of immune response. Conventional strategies to validate immune response mainly rely on the Response Evaluation Criteria in Solid Tumors (RECIST) and the modified iRECIST for immuno-oncology drug trials. However, accurate monitoring of immunotherapy efficacy is challenging since the response does not always follow conventional RECIST criteria due to delayed and variable kinetics in immunotherapy responses. Engineered nanomaterials for immunotherapy applications have significantly contributed to overcoming these challenges by improving drug delivery and dynamic imaging techniques. This review summarizes challenges in recent immune-modulation approaches and traditional imaging tools, followed by emerging developments in three-in-one nanoimmunotheranostic systems co-opting nanotechnology, immunotherapy, and imaging. In addition, a comprehensive overview of imaging modalities in recent cancer immunotherapy research and a brief outlook on how nanotheranostic platforms can potentially advance to clinical translations for the field of immuno-oncology is presented.
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Affiliation(s)
- Anh Nguyen
- Department of Chemical Engineering, University of Massachusetts, Amherst, MA, USA
| | - Sahana Kumar
- Department of Chemical Engineering, University of Massachusetts, Amherst, MA, USA
| | - Ashish A. Kulkarni
- Department of Chemical Engineering, University of Massachusetts, Amherst, MA, USA
- Center for Bioactive Delivery, Institute for Applied Life Sciences, University of Massachusetts, Amherst, MA, USA
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17
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Wen Y, Guo D, Zhang J, Liu X, Liu T, Li L, Jiang S, Wu D, Jiang H. Clinical photoacoustic/ultrasound dual-modal imaging: Current status and future trends. Front Physiol 2022; 13:1036621. [PMID: 36388111 PMCID: PMC9651137 DOI: 10.3389/fphys.2022.1036621] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Accepted: 10/05/2022] [Indexed: 08/24/2023] Open
Abstract
Photoacoustic tomography (PAT) is an emerging biomedical imaging modality that combines optical and ultrasonic imaging, providing overlapping fields of view. This hybrid approach allows for a natural integration of PAT and ultrasound (US) imaging in a single platform. Due to the similarities in signal acquisition and processing, the combination of PAT and US imaging creates a new hybrid imaging for novel clinical applications. Over the recent years, particular attention is paid to the development of PAT/US dual-modal systems highlighting mutual benefits in clinical cases, with an aim of substantially improving the specificity and sensitivity for diagnosis of diseases. The demonstrated feasibility and accuracy in these efforts open an avenue of translating PAT/US imaging to practical clinical applications. In this review, the current PAT/US dual-modal imaging systems are discussed in detail, and their promising clinical applications are presented and compared systematically. Finally, this review describes the potential impacts of these combined systems in the coming future.
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Affiliation(s)
- Yanting Wen
- Department of Ultrasound Imaging, The Fifth People’s Hospital of Chengdu, Chengdu, China
- School of Computer Science and Technology, Chongqing University of Posts and Telecommunications, Chongqing, China
| | - Dan Guo
- Department of Ultrasound Imaging, The Fifth People’s Hospital of Chengdu, Chengdu, China
| | - Jing Zhang
- Department of Ultrasound Imaging, The Fifth People’s Hospital of Chengdu, Chengdu, China
- School of Computer Science and Technology, Chongqing University of Posts and Telecommunications, Chongqing, China
| | - Xiaotian Liu
- Department of Ultrasound Imaging, The Fifth People’s Hospital of Chengdu, Chengdu, China
| | - Ting Liu
- Department of Ultrasound Imaging, The Fifth People’s Hospital of Chengdu, Chengdu, China
| | - Lu Li
- Department of Ultrasound Imaging, The Fifth People’s Hospital of Chengdu, Chengdu, China
| | - Shixie Jiang
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, United States
| | - Dan Wu
- School of Computer Science and Technology, Chongqing University of Posts and Telecommunications, Chongqing, China
| | - Huabei Jiang
- Department of Medical Engineering, University of South Florida, Tampa, FL, United States
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18
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Thangudu S, Huang EY, Su CH. Safe magnetic resonance imaging on biocompatible nanoformulations. Biomater Sci 2022; 10:5032-5053. [PMID: 35858468 DOI: 10.1039/d2bm00692h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Magnetic resonance imaging (MRI) holds promise for the early clinical diagnosis of various diseases, but most clinical MR techniques require the use of a contrast medium. Several nanomaterial (NM) mediated contrast agents (CAs) are widely used as T1- and T2-based MR contrast agents for clinical and non-clinical applications. Unfortunately, most NM-based CAs are toxic or non-biocompatible, restricting their practical/clinical applications. Therefore, the development of nontoxic and biocompatible CAs for clinical MRI diagnosis is highly desired. To this end, several biocompatible and biomimetic strategies have been developed to offer long blood circulation time, significant biocompatibility, in vivo biodistribution and high contrast ability for efficient imaging. However, detailed review reports on biocompatible NMs, specifically for MR imaging have not yet been summarized. Thus, in the present review we summarize various surface coating strategies (such as polymers, proteins, cell membranes, etc.) to achieve biocompatible NPs, providing a detailed discussion of advances and future prospects for safe MRI imaging.
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Affiliation(s)
- Suresh Thangudu
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan.
| | - Eng-Yen Huang
- Department of Radiation Oncology, Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Chia-Hao Su
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan. .,Center for General Education, Chang Gung University, Taoyuan, 333, Taiwan.,Department of Biomedical Imaging and Radiological Sciences, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
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19
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Ren D, Li C, Shi J, Chen R. A Review of High-Frequency Ultrasonic Transducers for Photoacoustic Imaging Applications. IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 2022; 69:1848-1858. [PMID: 34941509 DOI: 10.1109/tuffc.2021.3138158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Photoacoustic imaging (PAI) is a new and rapidly growing hybrid biomedical imaging modality that combines the virtues of both optical and ultrasonic (US) imaging. The nature of the interaction between light and ultrasound waves allows PAI to make good use of the rich contrast produced by optics while retaining the imaging depths in US imaging. High-frequency US transducers are an important part of the PAI systems, used to detect the high-frequency and broad-bandwidth photoacoustic signals excited by the target tissues irradiated by short laser pulses. Advancement in high-frequency US transducer technology has influenced the boost of PAI to broad applications. Here, we present a review on high-frequency US transducer technologies for PAI applications, including advanced piezoelectric materials and representative transducers. In addition, we discuss the new challenges and directions facing the development of high-frequency US transducers for PAI applications.
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20
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Fully Customized Photoacoustic System Using Doubly Q-Switched Nd:YAG Laser and Multiple Axes Stages for Laboratory Applications. SENSORS 2022; 22:s22072621. [PMID: 35408235 PMCID: PMC9002370 DOI: 10.3390/s22072621] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 03/24/2022] [Indexed: 12/30/2022]
Abstract
We developed a customized doubly Q-switched laser that can control the pulse width to easily find weak acoustic signals for photoacoustic (PA) systems. As the laser was constructed using an acousto-optic Q-switcher, in contrast to the existing commercial laser system, it is easier to control the pulse repetition rate and pulse width. The laser has the following control ranges: 10 Hz–10 kHz for the pulse repetition rate, 40–150 ns for the pulse width, and 50–500 μJ for the pulse energy. Additionally, a custom-made modularized sample stage was used to develop a fully customized PA system. The modularized sample stage has a nine-axis control unit design for the PA system, allowing the sample target and transducer to be freely adjusted. This makes the system suitable for capturing weak PA signals. Images were acquired and processed for widely used sample targets (hair and insulating tape) with the developed fully customized PA system. The customized doubly Q-switched laser-based PA imaging system presented in this paper can be modified for diverse conditions, including the wavelength, frequency, pulse width, and sample target; therefore, we expect that the proposed technique will be helpful in conducting fundamental and applied research for PA imaging system applications.
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21
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Wu Y, Shi C, Wang G, Sun H, Yin S. Recent Advances in the Development and Applications of Conjugated Polymer dots. J Mater Chem B 2022; 10:2995-3015. [DOI: 10.1039/d1tb02816b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Conjugated polymer dots or semiconducting polymer nanoparticles (Pdots) are nanoparticles prepared based on organic polymers. Pdots have the advantages of lower cost, simple preparation process, good biocompatibility, excellent stability, easy...
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22
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Kim H, Lee H, Kim H, Chang JH. Elimination of Nontargeted Photoacoustic Signals for Combined Photoacoustic and Ultrasound Imaging. IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 2021; 68:1593-1604. [PMID: 33259296 DOI: 10.1109/tuffc.2020.3041634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
As a molecular imaging modality, photoacoustic (PA) imaging has been in the spotlight because it can provide an optical contrast image of physiological information and a relatively deep imaging depth. However, its sensitivity is limited despite the use of exogenous contrast agents due to the background PA signals generated from nontargeted absorbers, such as blood and boundaries between different biological tissues. In addition, clutter artifacts generated in both in-plane and out-of-plane imaging region degrade the sensitivity of PA imaging. We propose a method to eliminate the nontargeted PA signals. For this study, we used a dual-modal ultrasound (US)-PA contrast agent that is capable of generating both the backscattered US and PA signals in response to the transmitted US and irradiated light, respectively. The US images of the contrast agents are used to construct a masking image that contains the location information about the target site and is applied to the PA image acquired after contrast agent injection. In vitro and in vivo experimental results demonstrated that the masking image constructed using the US images makes it possible to completely remove nontargeted PA signals. The proposed method can be used to enhance the clear visualization of the target area in PA images.
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23
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Fernandes DA, Fernandes DD, Malik A, Gomes GNW, Appak-Baskoy S, Berndl E, Gradinaru CC, Kolios MC. Multifunctional nanoparticles as theranostic agents for therapy and imaging of breast cancer. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2021; 218:112110. [PMID: 33865007 DOI: 10.1016/j.jphotobiol.2020.112110] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 11/13/2020] [Accepted: 12/18/2020] [Indexed: 11/26/2022]
Abstract
Over the last decade, there has been significant developments in nanotechnology, in particular for combined imaging and therapeutic applications (theranostics). The core or shell of nanoemulsions (NEs) can be loaded with various therapeutic agents, including drugs with low solubility for effective treatment, or various imaging agents for specific imaging modalities (e.g., MRI, fluorescence). In this work, perfluorohexane (PFH) NEs were synthesized for theranostic applications and were coupled to silica coated gold nanoparticles (scAuNPs) to increase the generation of PFH bubbles upon laser induced vaporization (i.e., optical droplet vaporization). The localized heat generated from the absorption properties of these nanoparticles (used to provide photoacoustic signals) can also be used to treat cancer without significantly damaging nearby healthy tissues. The theranostic potential of these PFH-NEs for contrast imaging of tumors and as a drug-delivery vehicle for therapeutic purposes were demonstrated for both in vitro and in vivo systems using a combination of photoacoustic, ultrasound and fluorescence imaging modalities. The ability of PFH-NEs to couple with scAuNPs, attach to the membranes of cancer cells and internalize within cancer cells, are encouraging for targeted chemotherapeutic applications for directly inducing cancer cell death via vaporization in clinical settings.
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Affiliation(s)
- Donald A Fernandes
- Department of Chemistry & Biology, Ryerson University, Toronto, ON M5B 2K3, Canada; Institute for Biomedical Engineering, Science and Technology (iBEST), a partnership between Ryerson University and St. Michael's Hospital, Toronto, ON M5B 1T8, Canada; Keenan Research Centre for Biomedical Science of St. Michael's Hospital, Toronto, ON, M5B 1T8, Canada.
| | - Dennis D Fernandes
- Department of Physics, University of Toronto, Toronto, ON M5S 1A7, Canada; Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada
| | - Aimen Malik
- Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada
| | - Gregory-Neal W Gomes
- Department of Physics, University of Toronto, Toronto, ON M5S 1A7, Canada; Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada
| | - Sila Appak-Baskoy
- Department of Chemistry & Biology, Ryerson University, Toronto, ON M5B 2K3, Canada; Institute for Biomedical Engineering, Science and Technology (iBEST), a partnership between Ryerson University and St. Michael's Hospital, Toronto, ON M5B 1T8, Canada; Keenan Research Centre for Biomedical Science of St. Michael's Hospital, Toronto, ON, M5B 1T8, Canada
| | - Elizabeth Berndl
- Institute for Biomedical Engineering, Science and Technology (iBEST), a partnership between Ryerson University and St. Michael's Hospital, Toronto, ON M5B 1T8, Canada; Keenan Research Centre for Biomedical Science of St. Michael's Hospital, Toronto, ON, M5B 1T8, Canada; Department of Physics, Ryerson University, Toronto, ON M5B 2K3, Canada
| | - Claudiu C Gradinaru
- Department of Physics, University of Toronto, Toronto, ON M5S 1A7, Canada; Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada.
| | - Michael C Kolios
- Institute for Biomedical Engineering, Science and Technology (iBEST), a partnership between Ryerson University and St. Michael's Hospital, Toronto, ON M5B 1T8, Canada; Keenan Research Centre for Biomedical Science of St. Michael's Hospital, Toronto, ON, M5B 1T8, Canada; Department of Physics, Ryerson University, Toronto, ON M5B 2K3, Canada.
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24
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Recent Progress in the Molecular Imaging of Tumor-Treating Bacteria. Nucl Med Mol Imaging 2021; 55:7-14. [PMID: 33643484 DOI: 10.1007/s13139-021-00689-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 01/13/2021] [Accepted: 01/20/2021] [Indexed: 12/20/2022] Open
Abstract
Bacterial cancer therapy (BCT) approaches have been extensively investigated because bacteria can show unique features of strong tropism for cancer, proliferation inside tumors, and antitumor immunity, while bacteria are also possible agents for drug delivery. Despite the rapidly increasing number of preclinical studies using BCT to overcome the limitations of conventional cancer treatments, very few BCT studies have advanced to clinical trials. In patients undergoing BCT, the precise localization and quantification of bacterial density in different body locations is important; however, most clinical trials have used subjective clinical signs and invasive sampling to confirm bacterial colonization. There is therefore a need to improve the visualization of bacterial densities using noninvasive and repetitive in vivo imaging techniques that can facilitate the clinical translation of BCT. In vivo optical imaging techniques using bioluminescence and fluorescence, which are extensively employed to image the therapeutic process of BCT in small animal research, are hard to apply to the human body because of their low penetrative power. Thus, new imaging techniques need to be developed for clinical trials. In this review, we provide an overview of the various in vivo bacteria-specific imaging techniques available for visualizing tumor-treating bacteria in BCT studies.
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25
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Awasthi N, Jain G, Kalva SK, Pramanik M, Yalavarthy PK. Deep Neural Network-Based Sinogram Super-Resolution and Bandwidth Enhancement for Limited-Data Photoacoustic Tomography. IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 2020; 67:2660-2673. [PMID: 32142429 DOI: 10.1109/tuffc.2020.2977210] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Photoacoustic tomography (PAT) is a noninvasive imaging modality combining the benefits of optical contrast at ultrasonic resolution. Analytical reconstruction algorithms for photoacoustic (PA) signals require a large number of data points for accurate image reconstruction. However, in practical scenarios, data are collected using the limited number of transducers along with data being often corrupted with noise resulting in only qualitative images. Furthermore, the collected boundary data are band-limited due to limited bandwidth (BW) of the transducer, making the PA imaging with limited data being qualitative. In this work, a deep neural network-based model with loss function being scaled root-mean-squared error was proposed for super-resolution, denoising, as well as BW enhancement of the PA signals collected at the boundary of the domain. The proposed network has been compared with traditional as well as other popular deep-learning methods in numerical as well as experimental cases and is shown to improve the collected boundary data, in turn, providing superior quality reconstructed PA image. The improvement obtained in the Pearson correlation, structural similarity index metric, and root-mean-square error was as high as 35.62%, 33.81%, and 41.07%, respectively, for phantom cases and signal-to-noise ratio improvement in the reconstructed PA images was as high as 11.65 dB for in vivo cases compared with reconstructed image obtained using original limited BW data. Code is available at https://sites.google.com/site/sercmig/home/dnnpat.
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26
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Kempski KM, Graham MT, Gubbi MR, Palmer T, Lediju Bell MA. Application of the generalized contrast-to-noise ratio to assess photoacoustic image quality. BIOMEDICAL OPTICS EXPRESS 2020; 11:3684-3698. [PMID: 33014560 PMCID: PMC7510924 DOI: 10.1364/boe.391026] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 05/01/2020] [Accepted: 05/25/2020] [Indexed: 05/10/2023]
Abstract
The generalized contrast-to-noise ratio (gCNR) is a relatively new image quality metric designed to assess the probability of lesion detectability in ultrasound images. Although gCNR was initially demonstrated with ultrasound images, the metric is theoretically applicable to multiple types of medical images. In this paper, the applicability of gCNR to photoacoustic images is investigated. The gCNR was computed for both simulated and experimental photoacoustic images generated by amplitude-based (i.e., delay-and-sum) and coherence-based (i.e., short-lag spatial coherence) beamformers. These gCNR measurements were compared to three more traditional image quality metrics (i.e., contrast, contrast-to-noise ratio, and signal-to-noise ratio) applied to the same datasets. An increase in qualitative target visibility generally corresponded with increased gCNR. In addition, gCNR magnitude was more directly related to the separability of photoacoustic signals from their background, which degraded with the presence of limited bandwidth artifacts and increased levels of channel noise. At high gCNR values (i.e., 0.95-1), contrast, contrast-to-noise ratio, and signal-to-noise ratio varied by up to 23.7-56.2 dB, 2.0-3.4, and 26.5-7.6×1020, respectively, for simulated, experimental phantom, and in vivo data. Therefore, these traditional metrics can experience large variations when a target is fully detectable, and additional increases in these values would have no impact on photoacoustic target detectability. In addition, gCNR is robust to changes in traditional metrics introduced by applying a minimum threshold to image amplitudes. In tandem with other photoacoustic image quality metrics and with a defined range of 0 to 1, gCNR has promising potential to provide additional insight, particularly when designing new beamformers and image formation techniques and when reporting quantitative performance without an opportunity to qualitatively assess corresponding images (e.g., in text-only abstracts).
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Affiliation(s)
- Kelley M Kempski
- Biomedical Engineering Department, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Michelle T Graham
- Electrical & Computer Engineering Department, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Mardava R Gubbi
- Electrical & Computer Engineering Department, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Theron Palmer
- Biomedical Engineering Department, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Muyinatu A Lediju Bell
- Biomedical Engineering Department, Johns Hopkins University, Baltimore, MD 21218, USA
- Electrical & Computer Engineering Department, Johns Hopkins University, Baltimore, MD 21218, USA
- Computer Science Department, Johns Hopkins University, Baltimore, MD 21218, USA
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27
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Jeon J, You DG, Um W, Lee J, Kim CH, Shin S, Kwon S, Park JH. Chemiluminescence resonance energy transfer-based nanoparticles for quantum yield-enhanced cancer phototheranostics. SCIENCE ADVANCES 2020; 6:eaaz8400. [PMID: 32637587 PMCID: PMC7314564 DOI: 10.1126/sciadv.aaz8400] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 03/06/2020] [Indexed: 05/22/2023]
Abstract
Chemiluminescence (CL) has recently gained attention for CL resonance energy transfer (CRET)-mediated photodynamic therapy of cancer. However, the short duration of the CL signal and low quantum yield of the photosensitizer have limited its translational applications. Here, we report CRET-based nanoparticles (CRET-NPs) to achieve quantum yield-enhanced cancer phototheranostics by reinterpreting the hidden nature of CRET. Owing to reactive oxygen species (ROS)-responsive CO2 generation, CRET-NPs were capable of generating a strong and long-lasting photoacoustic signal in the tumor tissue via thermal expansion-induced vaporization. In addition, the CRET phenomenon of the NPs enhanced ROS quantum yield of photosensitizer through both electron transfer for an oxygen-independent type I photochemical reaction and self-illumination for an oxygen-dependent type II photochemical reaction. Consequently, owing to their high ROS quantum yield, CRET-NPs effectively inhibited tumor growth with complete tumor growth inhibition in 60% of cases, even with a single treatment.
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Affiliation(s)
- Jueun Jeon
- School of Chemical Engineering, College of Engineering, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon 16419, Republic of Korea
| | - Dong Gil You
- School of Chemical Engineering, College of Engineering, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon 16419, Republic of Korea
| | - Wooram Um
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Republic of Korea
| | - Jeongjin Lee
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Republic of Korea
| | - Chan Ho Kim
- School of Chemical Engineering, College of Engineering, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon 16419, Republic of Korea
| | - Sol Shin
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Republic of Korea
| | - Seunglee Kwon
- School of Chemical Engineering, College of Engineering, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon 16419, Republic of Korea
| | - Jae Hyung Park
- School of Chemical Engineering, College of Engineering, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon 16419, Republic of Korea
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Republic of Korea
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon 16419, Republic of Korea
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Liu WW, Li PC. Photoacoustic imaging of cells in a three-dimensional microenvironment. J Biomed Sci 2020; 27:3. [PMID: 31948442 PMCID: PMC6966874 DOI: 10.1186/s12929-019-0594-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 11/18/2019] [Indexed: 12/21/2022] Open
Abstract
Imaging live cells in a three-dimensional (3D) culture system yields more accurate information and spatial visualization of the interplay of cells and the surrounding matrix components compared to using a two-dimensional (2D) cell culture system. However, the thickness of 3D cultures results in a high degree of scattering that makes it difficult for the light to penetrate deeply to allow clear optical imaging. Photoacoustic (PA) imaging is a powerful imaging modality that relies on a PA effect generated when light is absorbed by exogenous contrast agents or endogenous molecules in a medium. It combines a high optical contrast with a high acoustic spatiotemporal resolution, allowing the noninvasive visualization of 3D cellular scaffolds at considerable depths with a high resolution and no image distortion. Moreover, advances in targeted contrast agents have also made PA imaging capable of molecular and cellular characterization for use in preclinical personalized diagnostics or PA imaging-guided therapeutics. Here we review the applications and challenges of PA imaging in a 3D cellular microenvironment. Potential future developments of PA imaging in preclinical applications are also discussed.
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Affiliation(s)
- Wei-Wen Liu
- Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei, Taiwan
| | - Pai-Chi Li
- Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei, Taiwan.
- Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan.
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Perry HL, Botnar RM, Wilton-Ely JDET. Gold nanomaterials functionalised with gadolinium chelates and their application in multimodal imaging and therapy. Chem Commun (Camb) 2020; 56:4037-4046. [DOI: 10.1039/d0cc00196a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An overview of recent progress in the design of gadolinium-functionalised gold nanoparticles for use in MRI, multimodal imaging and theranostics.
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Affiliation(s)
- Hannah L. Perry
- Molecular Sciences Research Hub
- Department of Chemistry
- White City Campus
- Imperial College London
- London
| | - René M. Botnar
- School of Biomedical Engineering and Imaging Sciences
- King's College London
- London
- UK
| | - James D. E. T. Wilton-Ely
- Molecular Sciences Research Hub
- Department of Chemistry
- White City Campus
- Imperial College London
- London
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30
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Akhlaghi N, Pfefer TJ, Wear KA, Garra BS, Vogt WC. Multidomain computational modeling of photoacoustic imaging: verification, validation, and image quality prediction. JOURNAL OF BIOMEDICAL OPTICS 2019; 24:1-12. [PMID: 31705636 PMCID: PMC7005568 DOI: 10.1117/1.jbo.24.12.121910] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 10/14/2019] [Indexed: 05/05/2023]
Abstract
As photoacoustic imaging (PAI) technology matures, computational modeling will increasingly represent a critical tool for facilitating clinical translation through predictive simulation of real-world performance under a wide range of device and biological conditions. While modeling currently offers a rapid, inexpensive tool for device development and prediction of fundamental image quality metrics (e.g., spatial resolution and contrast ratio), rigorous verification and validation will be required of models used to provide regulatory-grade data that effectively complements and/or replaces in vivo testing. To address methods for establishing model credibility, we developed an integrated computational model of PAI by coupling a previously developed three-dimensional Monte Carlo model of tissue light transport with a two-dimensional (2D) acoustic wave propagation model implemented in the well-known k-Wave toolbox. We then evaluated ability of the model to predict basic image quality metrics by applying standardized verification and validation principles for computational models. The model was verified against published simulation data and validated against phantom experiments using a custom PAI system. Furthermore, we used the model to conduct a parametric study of optical and acoustic design parameters. Results suggest that computationally economical 2D acoustic models can adequately predict spatial resolution, but metrics such as signal-to-noise ratio and penetration depth were difficult to replicate due to challenges in modeling strong clutter observed in experimental images. Parametric studies provided quantitative insight into complex relationships between transducer characteristics and image quality as well as optimal selection of optical beam geometry to ensure adequate image uniformity. Multidomain PAI simulation tools provide high-quality tools to aid device development and prediction of real-world performance, but further work is needed to improve model fidelity, especially in reproducing image noise and clutter.
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Affiliation(s)
- Nima Akhlaghi
- Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, Maryland, United States
- Address all correspondence to Nima Akhlaghi, E-mail:
| | - T. Joshua Pfefer
- Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, Maryland, United States
| | - Keith A. Wear
- Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, Maryland, United States
| | - Brian S. Garra
- Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, Maryland, United States
| | - William C. Vogt
- Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, Maryland, United States
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31
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Yang C, Wang Q, Ding W. Recent progress in the imaging detection of enzyme activities in vivo. RSC Adv 2019; 9:25285-25302. [PMID: 35530057 PMCID: PMC9070033 DOI: 10.1039/c9ra04508b] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Accepted: 07/29/2019] [Indexed: 12/27/2022] Open
Abstract
Enzymatic activities are important for normal physiological processes and are also critical regulatory mechanisms for many pathologies. Identifying the enzyme activities in vivo has considerable importance in disease diagnoses and monitoring of the physiological metabolism. In the past few years, great strides have been made towards the imaging detection of enzyme activity in vivo based on optical modality, MRI modality, nuclear modality, photoacoustic modality and multifunctional modality. This review summarizes the latest advances in the imaging detection of enzyme activities in vivo reported within the past years, mainly concentrating on the probe design, imaging strategies and demonstration of enzyme activities in vivo. This review also highlights the potential challenges and the further directions of this field.
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Affiliation(s)
- Chunjie Yang
- College of Health Science, Yuncheng Polytechnic College Yuncheng Shanxi 044000 PR China
- College of Food Science and Engineering, Northwest A&F University Yangling Shaanxi 712100 PR China
| | - Qian Wang
- College of Food Science and Engineering, Northwest A&F University Yangling Shaanxi 712100 PR China
| | - Wu Ding
- College of Food Science and Engineering, Northwest A&F University Yangling Shaanxi 712100 PR China
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Higbee‐Dempsey E, Amirshaghaghi A, Case MJ, Miller J, Busch TM, Tsourkas A. Indocyanine Green–Coated Gold Nanoclusters for Photoacoustic Imaging and Photothermal Therapy. ADVANCED THERAPEUTICS 2019; 2. [DOI: 10.1002/adtp.201900088] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Elizabeth Higbee‐Dempsey
- Biochemistry and Molecular Biophysics Graduate GroupPerelman School of MedicineUniversity of Pennsylvania Philadelphia PA 19104 USA
| | - Ahmad Amirshaghaghi
- Department of BioengineeringUniversity of Pennsylvania Philadelphia PA 19104 USA
| | - Matthew J. Case
- College of MedicineMedical University of South Carolina Charleston SC 29425 USA
| | - Joann Miller
- Department of Radiation OncologyPerelman School of MedicineUniversity of Pennsylvania Philadelphia PA 19104 USA
| | - Theresa M. Busch
- Department of Radiation OncologyPerelman School of MedicineUniversity of Pennsylvania Philadelphia PA 19104 USA
| | - Andrew Tsourkas
- Department of BioengineeringUniversity of Pennsylvania Philadelphia PA 19104 USA
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Devreux M, Henoumont C, Dioury F, Stanicki D, Boutry S, Larbanoix L, Ferroud C, Muller RN, Laurent S. Bimodal Probe for Magnetic Resonance Imaging and Photoacoustic Imaging Based on a PCTA-Derived Gadolinium(III) Complex and ZW800-1. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900387] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Marie Devreux
- NMR and Molecular Imaging; University of Mons; 19 Avenue Maistriau 7000 Mons Belgium
| | - Céline Henoumont
- NMR and Molecular Imaging; University of Mons; 19 Avenue Maistriau 7000 Mons Belgium
| | - Fabienne Dioury
- Laboratoire de Génomique; Bioinformatique et Chimie Moléculaire, EA 7528, Conservatoire National des Arts et Métiers; HESAM Université; 2 rue Conté 75003 Paris France
| | - Dimitri Stanicki
- NMR and Molecular Imaging; University of Mons; 19 Avenue Maistriau 7000 Mons Belgium
| | - Sébastien Boutry
- Center of Microscopy and Molecular Imaging; 8 rue Adrienne Bolland 6041 Charleroi Belgium
| | - Lionel Larbanoix
- Center of Microscopy and Molecular Imaging; 8 rue Adrienne Bolland 6041 Charleroi Belgium
| | - Clotilde Ferroud
- Laboratoire de Génomique; Bioinformatique et Chimie Moléculaire, EA 7528, Conservatoire National des Arts et Métiers; HESAM Université; 2 rue Conté 75003 Paris France
| | - Robert N. Muller
- NMR and Molecular Imaging; University of Mons; 19 Avenue Maistriau 7000 Mons Belgium
- Center of Microscopy and Molecular Imaging; 8 rue Adrienne Bolland 6041 Charleroi Belgium
| | - Sophie Laurent
- NMR and Molecular Imaging; University of Mons; 19 Avenue Maistriau 7000 Mons Belgium
- Center of Microscopy and Molecular Imaging; 8 rue Adrienne Bolland 6041 Charleroi Belgium
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34
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Li H, Hou X, Lin R, Fan M, Pang S, Jiang L, Liu Q, Fu L. Advanced endoscopic methods in gastrointestinal diseases: a systematic review. Quant Imaging Med Surg 2019; 9:905-920. [PMID: 31281783 DOI: 10.21037/qims.2019.05.16] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Endoscopic imaging is the main method for detecting gastrointestinal diseases, which adversely affect human health. White light endoscopy (WLE) was the first method used for endoscopic examination and is still the preliminary step in the detection of gastrointestinal diseases during clinical examination. However, it cannot accurately diagnose gastrointestinal diseases owing to its poor correlation with histopathological diagnosis. In recent years, many advanced endoscopic methods have emerged to improve the detection accuracy by endoscopy. Chromoendoscopy (CE) enhances the contrast between normal and diseased tissues using biocompatible dye agents. Narrow band imaging (NBI) can improve the contrast between capillaries and submucosal vessels by changing the light source acting on the tissue using special filters to realize the visualization of the vascular structure. Flexible spectral imaging color enhancement (FICE) technique uses the reflectance spectrum estimation technique to obtain individual spectral images and reconstructs an enhanced image of the mucosal surface using three selected spectral images. The i-Scan technology takes advantage of the different reflective properties of normal and diseased tissues to obtain images, and enhances image contrast through post-processing algorithms. These abovementioned methods can be used to detect gastrointestinal diseases by observing the macroscopic structure of the digestive tract mucosa, but the ability of early cancer detection is limited with low resolution. However, based on the principle of confocal imaging, probe-based confocal laser endomicroscopy (pCLE) can enable cellular visualization with high-performance probes, which can present cellular morphology that is highly consistent with that shown by biopsy to provide the possibility of early detection of cancer. Other endoscopic imaging techniques including endoscopic optical coherence tomography (EOCT) and photoacoustic endoscopy (PAE), are also promising for diagnosing gastrointestinal diseases. This review focuses on these technologies and aims to provide an overview of different technologies and their clinical applicability.
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Affiliation(s)
- Hua Li
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics-Huazhong University of Science and Technology, Wuhan 430074, China.,MoE Key Laboratory for Biomedical Photonics, School of Engineering Sciences, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xiaohua Hou
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Rong Lin
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Mengke Fan
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Suya Pang
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Longjie Jiang
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics-Huazhong University of Science and Technology, Wuhan 430074, China.,MoE Key Laboratory for Biomedical Photonics, School of Engineering Sciences, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Qian Liu
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics-Huazhong University of Science and Technology, Wuhan 430074, China.,MoE Key Laboratory for Biomedical Photonics, School of Engineering Sciences, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Ling Fu
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics-Huazhong University of Science and Technology, Wuhan 430074, China.,MoE Key Laboratory for Biomedical Photonics, School of Engineering Sciences, Huazhong University of Science and Technology, Wuhan 430074, China
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Lin K, Zhao ZZ, Bo HB, Hao XJ, Wang JQ. Applications of Ruthenium Complex in Tumor Diagnosis and Therapy. Front Pharmacol 2018; 9:1323. [PMID: 30510511 PMCID: PMC6252376 DOI: 10.3389/fphar.2018.01323] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 10/29/2018] [Indexed: 12/27/2022] Open
Abstract
Ruthenium complexes are a new generation of metal antitumor drugs that are currently of great interest in multidisciplinary research. In this review article, we introduce the applications of ruthenium complexes in the diagnosis and therapy of tumors. We focus on the actions of ruthenium complexes on DNA, mitochondria, and endoplasmic reticulum of cells, as well as signaling pathways that induce tumor cell apoptosis, autophagy, and inhibition of angiogenesis. Furthermore, we highlight the use of ruthenium complexes as specific tumor cell probes to dynamically monitor the active biological component of the microenvironment and as excellent photosensitizer, catalyst, and bioimaging agents for phototherapies that significantly enhance the diagnosis and therapeutic effect on tumors. Finally, the combinational use of ruthenium complexes with existing clinical antitumor drugs to synergistically treat tumors is discussed.
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Affiliation(s)
- Ke Lin
- School of Bioscience and Biopharmaceutics, Guangdong Province Key Laboratory for Biotechnology Drug Candidates, Guangdong Pharmaceutical University, Guangzhou, China
| | - Zi-Zhuo Zhao
- Department of Ultrasound, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hua-Ben Bo
- School of Bioscience and Biopharmaceutics, Guangdong Province Key Laboratory for Biotechnology Drug Candidates, Guangdong Pharmaceutical University, Guangzhou, China
| | - Xiao-Juan Hao
- Manufacturing, Commonwealth Scientific and Industrial Research Organisation, Clayton, VIC, Australia
| | - Jin-Quan Wang
- School of Bioscience and Biopharmaceutics, Guangdong Province Key Laboratory for Biotechnology Drug Candidates, Guangdong Pharmaceutical University, Guangzhou, China
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36
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Lee C, Kim JY, Kim C. Recent Progress on Photoacoustic Imaging Enhanced with Microelectromechanical Systems (MEMS) Technologies. MICROMACHINES 2018; 9:E584. [PMID: 30413091 PMCID: PMC6266184 DOI: 10.3390/mi9110584] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 11/05/2018] [Accepted: 11/06/2018] [Indexed: 01/01/2023]
Abstract
Photoacoustic imaging (PAI) is a new biomedical imaging technology currently in the spotlight providing a hybrid contrast mechanism and excellent spatial resolution in the biological tissues. It has been extensively studied for preclinical and clinical applications taking advantage of its ability to provide anatomical and functional information of live bodies noninvasively. Recently, microelectromechanical systems (MEMS) technologies, particularly actuators and sensors, have contributed to improving the PAI system performance, further expanding the research fields. This review introduces cutting-edge MEMS technologies for PAI and summarizes the recent advances of scanning mirrors and detectors in MEMS.
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Affiliation(s)
- Changho Lee
- Department of Nuclear Medicine, Chonnam National University Medical School & Hwasun Hospital, Hwasun 58128, Korea.
| | - Jin Young Kim
- Departments of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea.
| | - Chulhong Kim
- Departments of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea.
- Departments of Creative IT Engineering and Electrical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea.
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37
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Duan Y, Liu B. Recent Advances of Optical Imaging in the Second Near-Infrared Window. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1802394. [PMID: 30182451 DOI: 10.1002/adma.201802394] [Citation(s) in RCA: 366] [Impact Index Per Article: 61.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 05/19/2018] [Indexed: 05/20/2023]
Abstract
The near-infrared window between 1000 and 1700 nm, commonly termed the "second near-infrared (NIR-II) window," has quickly emerged as a highly attractive optical region for biological imaging. In contrast to conventional imaging in the visible region between 400 and 700 nm, as well as in the first NIR (NIR-I) window between 700 and 900 nm, NIR-II biological imaging offers numerous merits, including higher spatial resolution, deeper penetration depth, and lower optical absorption and scattering from biological substrates with minimal tissue autofluorescence. Noninvasive imaging techniques, specifically NIR-II fluorescence and photoacoustic (PA) imaging, have embodied the attractiveness of NIR-II optical imaging, with several NIR-II contrast agents demonstrating superior performance to the clinically approved NIR-I agents. Consequently, NIR-II biological imaging has been increasingly explored due to its tremendous potential for preclinical studies and clinical utility. Herein, the progress of optical imaging in the NIR-II window is reported. Starting with highlighting the importance of biological imaging in the NIR-II spectral region, the emergence and latest development of various NIR-II fluorescence and PA imaging probes and their applications are then discussed. Perspectives on the promises and challenges facing this nascent yet exciting field are then given.
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Affiliation(s)
- Yukun Duan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
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38
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Mattu C, Brachi G, Menichetti L, Flori A, Armanetti P, Ranzato E, Martinotti S, Nizzero S, Ferrari M, Ciardelli G. Alternating block copolymer-based nanoparticles as tools to modulate the loading of multiple chemotherapeutics and imaging probes. Acta Biomater 2018; 80:341-351. [PMID: 30236799 DOI: 10.1016/j.actbio.2018.09.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 08/30/2018] [Accepted: 09/15/2018] [Indexed: 12/30/2022]
Abstract
Cancer therapy often relies on the combined action of different molecules to overcome drug resistance and enhance patient outcome. Combined strategies relying on molecules with different pharmacokinetics often fail due to the lack of concomitant tumor accumulation and, thus, to the loss of synergistic effect. Due to their ability to enhance treatment efficiency, improve drug pharmacokinetics, and reduce adverse effects, polymer nanoparticles (PNPs) have been widely investigated as co-delivery vehicles for cancer therapies. However, co-encapsulation of different drugs and probes in PNPs requires a flexible polymer platform and a tailored particle design, in which both the bulk and surface properties of the carriers are carefully controlled. In this work, we propose a core-shell PNP design based on a polyurethane (PUR) core and a phospholipid external surface. The modulation of the hydrophilic/hydrophobic balance of the PUR core enhanced the encapsulation of two chemotherapeutics with dramatically different water solubility (Doxorubicin hydrochloride, DOXO and Docetaxel, DCTXL) and of Iron Oxide Nanoparticles for MRI imaging. The outer shell remained unchanged among the platforms, resulting in un-modified cellular uptake and in vivo biodistribution. We demonstrate that the choice of PUR core allowed a high entrapment efficiency of all drugs, superior or comparable to previously reported results, and that higher core hydrophilicity enhances the loading efficiency of the hydrophilic DOXO and the MRI contrast effect. Moreover, we show that changing the PUR core did not alter the surface properties of the carriers, since all particles showed a similar behavior in terms of cell internalization and in vivo biodistribution. We also show that PUR PNPs have high passive tumor accumulation and that they can efficient co-deliver the two drugs to the tumor, reaching an 11-fold higher DOXO/DCTXL ratio in tumor as compared to free drugs. STATEMENT OF SIGNIFICANCE: Exploiting the synergistic action of multiple chemotherapeutics is a promising strategy to improve the outcome of cancer patients, as different agents can simultaneously engage different features of tumor cells and/or their microenvironment. Unfortunately, the choice is limited to drugs with similar pharmacokinetics that can concomitantly accumulate in tumors. To expand the spectrum of agents that can be delivered in combination, we propose a multi-compartmental core-shell nanoparticles approach, in which the core is made of biomaterials with high affinity for drugs of different physical properties. We successfully co-encapsulated Doxorubicin Hydrochloride, Docetaxel, and contrast agents and achieved a significantly higher concomitant accumulation in tumor versus free drugs, demonstrating that nanoparticles can improve synergistic cancer chemotherapy.
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Affiliation(s)
- C Mattu
- Politecnico di Torino, DIMEAS C.so Duca degli Abruzzi 24, 10129 Torino, Italy; Department of Nanomedicine, Houston Methodist Hospital Research Institute, Houston, TX 77030, USA
| | - G Brachi
- Politecnico di Torino, DIMEAS C.so Duca degli Abruzzi 24, 10129 Torino, Italy; Department of Nanomedicine, Houston Methodist Hospital Research Institute, Houston, TX 77030, USA
| | - L Menichetti
- Institute of Clinical Physiology, National Research Council, Via G. Moruzzi, 1 56124 Pisa, Italy; Fondazione Regione Toscana G. Monasterio, Via Giuseppe Moruzzi 1, Pisa 56124, Italy
| | - A Flori
- Fondazione Regione Toscana G. Monasterio, Via Giuseppe Moruzzi 1, Pisa 56124, Italy
| | - P Armanetti
- Institute of Clinical Physiology, National Research Council, Via G. Moruzzi, 1 56124 Pisa, Italy
| | - E Ranzato
- DiSIT-Dipartimento di Scienze e Innovazione Tecnologica, University of Piemonte Orientale, piazza Sant'Eusebio 5, Vercelli 13100, Italy
| | - S Martinotti
- DiSIT-Dipartimento di Scienze e Innovazione Tecnologica, University of Piemonte Orientale, Viale Teresa Michel 11, Alessandria 15121, Italy
| | - S Nizzero
- Department of Nanomedicine, Houston Methodist Hospital Research Institute, Houston, TX 77030, USA; Applied Physics Graduate Program, Smalley-Curl Institute, Rice University, Houston, TX 77005, USA
| | - M Ferrari
- Department of Nanomedicine, Houston Methodist Hospital Research Institute, Houston, TX 77030, USA; Department of Medicine, Weill Cornell Medical College, New York, NY 10065, USA
| | - G Ciardelli
- Politecnico di Torino, DIMEAS C.so Duca degli Abruzzi 24, 10129 Torino, Italy
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Mukaddim RA, Rodgers A, Hacker TA, Heinmiller A, Varghese T. Real-Time in Vivo Photoacoustic Imaging in the Assessment of Myocardial Dynamics in Murine Model of Myocardial Ischemia. ULTRASOUND IN MEDICINE & BIOLOGY 2018; 44:2155-2164. [PMID: 30064849 PMCID: PMC6135705 DOI: 10.1016/j.ultrasmedbio.2018.05.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 04/06/2018] [Accepted: 05/24/2018] [Indexed: 05/03/2023]
Abstract
Photoacoustic imaging (PAI) is an evolving real-time imaging modality that combines the higher contrast of optical imaging with the higher spatial resolution of ultrasound imaging. We utilized dual-wavelength PAI for the diagnosis and monitoring of myocardial ischemia by assessing variations in blood oxygen saturation estimated in a murine model. The use of high-frequency ultrasound in conjunction with PAI enabled imaging of anatomic and functional changes associated with ischemia. Myocardial ischemia was established in eight mice by ligating the left anterior descending artery (LAD). Longitudinal results reveal that PAI is sensitive to acute myocardial ischemia, with a rapid decline in blood oxygen saturation (p ˂ 0.001) observed after LAD ligation (30 min: 33.05 ± 6.80%, 80 min: 36.59 ± 5.22%, 120 min: 36.70 ± 9.46%, 24 h: 40.55 ± 13.04%) compared with baseline (87.83 ± 5.73%). Variation in blood oxygen saturation was found to be linearly correlated with ejection fraction (%), fractional shortening (%) and stroke volume (µL), with Pearson's correlation coefficient values of 0.66, 0.67 and 0.77, respectively (p ˂ 0.001). Our results indicate that PAI has the potential for real-time diagnosis and monitoring of acute myocardial ischemia.
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Affiliation(s)
- Rashid Al Mukaddim
- Department of Electrical and Computer Engineering, University of Wisconsin, Madison, Wisconsin, USA
| | - Allison Rodgers
- Section of Cardiovascular Medicine, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
| | - Timothy A Hacker
- Section of Cardiovascular Medicine, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
| | | | - Tomy Varghese
- Department of Electrical and Computer Engineering, University of Wisconsin, Madison, Wisconsin, USA; Department of Medical Physics, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA.
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40
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Abstract
Over the past twenty years, photoacoustics—also called optoacoustics—have been widely investigated and, in particular, extensively applied in biomedical imaging as an emerging modality. Photoacoustic imaging (PAI) detects an ultrasound wave that is generated via photoexcitation and thermoelastic expansion by a short nanosecond laser pulse, which significantly reduces light and acoustic scattering, more than in other typical optical imaging and renders high-resolution tomographic images with preserving high absorption contrast with deep penetration depth. In addition, PAI provides anatomical and physiological parameters in non-invasive manner. Over the past two decades, this technique has been remarkably developed in the sense of instrumentation and contrast agent materials. In this review, we briefly introduce state-of-the-art multiscale imaging systems and summarize recent progress on exogenous bio-compatible and -degradable agents that address biomedical application and clinical practice.
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Optoacoustic Breast Imaging: Imaging-Pathology Correlation of Optoacoustic Features in Benign and Malignant Breast Masses. AJR Am J Roentgenol 2018; 211:1155-1170. [PMID: 30106610 DOI: 10.2214/ajr.17.18435] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
OBJECTIVE Optoacoustic ultrasound breast imaging is a fused anatomic and functional modality that shows morphologic features, as well as hemoglobin amount and relative oxygenation within and around breast masses. The purpose of this study is to investigate the positive predictive value (PPV) of optoacoustic ultrasound features in benign and malignant masses. SUBJECTS AND METHODS In this study, 92 masses assessed as BI-RADS category 3, 4, or 5 in 94 subjects were imaged with optoacoustic ultrasound. Each mass was scored by seven blinded independent readers according to three internal features in the tumor interior and two external features in its boundary zone and periphery. Mean and median optoacoustic ultrasound scores were compared with histologic findings for biopsied masses and nonbiopsied BI-RADS category 3 masses, which were considered benign if they were stable at 12-month follow-up. Statistical significance was analyzed using a two-sided Wilcoxon rank sum test with a 0.05 significance level. RESULTS Mean and median optoacoustic ultrasound scores for all individual internal and external features, as well as summed scores, were higher for malignant masses than for benign masses (p < 0.0001). High external scores, indicating increased hemoglobin and deoxygenation and abnormal vessel morphologic features in the tumor boundary zone and periphery, better distinguished benign from malignant masses than did high internal scores reflecting increased hemoglobin and deoxygenation within the tumor interior. CONCLUSION High optoacoustic ultrasound scores, particularly those based on external features in the boundary zone and periphery of breast masses, have high PPVs for malignancy and, conversely, low optoacoustic ultrasound scores have low PPV for malignancy. The functional component of optoacoustic ultrasound may help to overcome some of the limitations of morphologic overlap in the distinction of benign and malignant masses.
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Anas EMA, Zhang HK, Kang J, Boctor E. Enabling fast and high quality LED photoacoustic imaging: a recurrent neural networks based approach. BIOMEDICAL OPTICS EXPRESS 2018; 9:3852-3866. [PMID: 30338160 PMCID: PMC6191624 DOI: 10.1364/boe.9.003852] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 06/26/2018] [Accepted: 07/11/2018] [Indexed: 05/04/2023]
Abstract
Photoacoustic (PA) techniques have shown promise in the imaging of tissue chromophores and exogenous contrast agents in various clinical applications. However, the key drawback of current PA technology is its dependence on a complex and hazardous laser system for the excitation of a tissue sample. Although light-emitting diodes (LED) have the potential to replace the laser, the image quality of an LED-based system is severely corrupted due to the low output power of LED elements. The current standard way to improve the quality is to increase the scanning time, which leads to a reduction in the imaging speed and makes the images prone to motion artifacts. To address the challenges of longer scanning time and poor image quality, in this work we present a deep neural networks based approach that exploits the temporal information in PA images using a recurrent neural network. We train our network using 32 phantom experiments; on the test set of 30 phantom experiments, we achieve a gain in the frame rate of 8 times with a mean peak-signal-to-noise-ratio of 35.4 dB compared to the standard technique.
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Affiliation(s)
| | - Haichong K. Zhang
- Electrical and Computer Engineering, Johns Hopkins University, Baltimore, MD,
USA
| | - Jin Kang
- Electrical and Computer Engineering, Johns Hopkins University, Baltimore, MD,
USA
| | - Emad Boctor
- Electrical and Computer Engineering, Johns Hopkins University, Baltimore, MD,
USA
- Radiology and Radiological Science, Johns Hopkins University, Baltimore, MD,
USA
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Denkova AG, de Kruijff RM, Serra‐Crespo P. Nanocarrier-Mediated Photochemotherapy and Photoradiotherapy. Adv Healthc Mater 2018; 7:e1701211. [PMID: 29282903 DOI: 10.1002/adhm.201701211] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 11/17/2017] [Indexed: 12/15/2022]
Abstract
Photothermal therapy (PTT) and photodynamic therapy (PDT) both utilize light to induce a therapeutic effect. These therapies are rapidly gaining importance due to the noninvasiveness of light and the limited adverse effect associated with these treatments. However, most preclinical studies show that complete elimination of tumors is rarely observed. Combining PDT and PTT with chemotherapy or radiotherapy can improve the therapeutic outcome and simultaneously decrease side effects of these conventional treatments. Nanocarriers can help to facilitate such a combined treatment. Here, the most recent advancements in the field of photochemotherapy and photoradiotherapy, in which nanocarriers are employed, are reviewed.
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Affiliation(s)
- Antonia G. Denkova
- Radiation Science and TechnologyDelft University of Technology Mekelweg 15 2629 JB Delft The Netherlands
| | - Robine M. de Kruijff
- Radiation Science and TechnologyDelft University of Technology Mekelweg 15 2629 JB Delft The Netherlands
| | - Pablo Serra‐Crespo
- Radiation Science and TechnologyDelft University of Technology Mekelweg 15 2629 JB Delft The Netherlands
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Photoacoustic Imaging for the Detection of Hypoxia in the Rat Femoral Artery and Skeletal Muscle Microcirculation. Shock 2018; 46:527-530. [PMID: 27172152 DOI: 10.1097/shk.0000000000000644] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Photoacoustic (PA) imaging is an emerging technology that combines structural and functional imaging of tissues using laser and ultrasound energy. We evaluated the ability of PA imaging system to measure real-time systemic and microvascular mean oxygen saturation (mSAO2) in a rat model of hypoxic shock. Male Sprague Dawley rats (n = 6) underwent femoral artery catherization and were subjected to acute hypoxia by lowering the fraction of inspired oxygen (FiO2) from 1.0 to 0.21, and then to 0.08. PA measurements of mSaO2 were taken in the femoral artery near the catheter tip using the Vevo 2100 LAZR at each FiO2 and compared to co-oximetry on blood removed from the femoral catheter. Both co-oximetry and PA imaging measured a similar stepwise decline in femoral artery mSaO2 as FiO2 was lowered. We also measured mSaO2 in the feed arteriole of the rat spinotrapezius muscle and adjacent microvessels (n = 6) using PA imaging. A significant decrease in mSaO2 in both the feed arteriole and adjacent microvessels was recorded as FiO2 was decreased from 1.0 to 0.08. Moreover, we detected a rapid return toward baseline mSaO2 in the feed arteriole and microvessels when FiO2 was increased from 0.08 to 1.0. Thus, PA imaging is noninvasive imaging modality that can accurately measure real-time oxygen saturation in the macro and microcirculation during acute hypoxia. This proof-of-concept study is a first step in establishing PA imaging as an investigational tool in critical illness.
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Vallet M, Varray F, Boutet J, Dinten JM, Caliano G, Savoia AS, Vray D. Quantitative comparison of PZT and CMUT probes for photoacoustic imaging: Experimental validation. PHOTOACOUSTICS 2017; 8:48-58. [PMID: 29034168 PMCID: PMC5635341 DOI: 10.1016/j.pacs.2017.09.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 07/27/2017] [Accepted: 09/08/2017] [Indexed: 05/05/2023]
Abstract
Photoacoustic (PA) signals are short ultrasound (US) pulses typically characterized by a single-cycle shape, often referred to as N-shape. The spectral content of such wideband signals ranges from a few hundred kilohertz to several tens of megahertz. Typical reception frequency responses of classical piezoelectric US imaging transducers, based on PZT technology, are not sufficiently broadband to fully preserve the entire information contained in PA signals, which are then filtered, thus limiting PA imaging performance. Capacitive micromachined ultrasonic transducers (CMUT) are rapidly emerging as a valid alternative to conventional PZT transducers in several medical ultrasound imaging applications. As compared to PZT transducers, CMUTs exhibit both higher sensitivity and significantly broader frequency response in reception, making their use attractive in PA imaging applications. This paper explores the advantages of the CMUT larger bandwidth in PA imaging by carrying out an experimental comparative study using various CMUT and PZT probes from different research laboratories and manufacturers. PA acquisitions are performed on a suture wire and on several home-made bimodal phantoms with both PZT and CMUT probes. Three criteria, based on the evaluation of pure receive impulse response, signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) respectively, have been used for a quantitative comparison of imaging results. The measured fractional bandwidths of the CMUT arrays are larger compared to PZT probes. Moreover, both SNR and CNR are enhanced by at least 6 dB with CMUT technology. This work highlights the potential of CMUT technology for PA imaging through qualitative and quantitative parameters.
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Affiliation(s)
- Maëva Vallet
- Univ Lyon, INSA-Lyon, Université Lyon 1, UJM-Saint Etienne, CNRS, Inserm, CREATIS UMR 5220, U1206, F-69621 Lyon, France
| | - François Varray
- Univ Lyon, INSA-Lyon, Université Lyon 1, UJM-Saint Etienne, CNRS, Inserm, CREATIS UMR 5220, U1206, F-69621 Lyon, France
- Corresponding author.
| | | | | | - Giosuè Caliano
- Dipartimento di Ingegneria, Università degli Studi Roma Tre, Rome, Italy
| | | | - Didier Vray
- Univ Lyon, INSA-Lyon, Université Lyon 1, UJM-Saint Etienne, CNRS, Inserm, CREATIS UMR 5220, U1206, F-69621 Lyon, France
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Neuschler EI, Butler R, Young CA, Barke LD, Bertrand ML, Böhm-Vélez M, Destounis S, Donlan P, Grobmyer SR, Katzen J, Kist KA, Lavin PT, Makariou EV, Parris TM, Schilling KJ, Tucker FL, Dogan BE. A Pivotal Study of Optoacoustic Imaging to Diagnose Benign and Malignant Breast Masses: A New Evaluation Tool for Radiologists. Radiology 2017; 287:398-412. [PMID: 29178816 DOI: 10.1148/radiol.2017172228] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Purpose To compare the diagnostic utility of an investigational optoacoustic imaging device that fuses laser optical imaging (OA) with grayscale ultrasonography (US) to grayscale US alone in differentiating benign and malignant breast masses. Materials and Methods This prospective, 16-site study of 2105 women (study period: 12/21/2012 to 9/9/2015) compared Breast Imaging Reporting and Data System (BI-RADS) categories assigned by seven blinded independent readers to benign and malignant breast masses using OA/US versus US alone. BI-RADS 3, 4, or 5 masses assessed at diagnostic US with biopsy-proven histologic findings and BI-RADS 3 masses stable at 12 months were eligible. Independent readers reviewed US images obtained with the OA/US device, assigned a probability of malignancy (POM) and BI-RADS category, and locked results. The same independent readers then reviewed OA/US images, scored OA features, and assigned OA/US POM and a BI-RADS category. Specificity and sensitivity were calculated for US and OA/US. Benign and malignant mass upgrade and downgrade rates, positive and negative predictive values, and positive and negative likelihood ratios were compared. Results Of 2105 consented subjects with 2191 masses, 100 subjects (103 masses) were analyzed separately as a training population and excluded. An additional 202 subjects (210 masses) were excluded due to technical failures or incomplete imaging, 72 subjects (78 masses) due to protocol deviations, and 41 subjects (43 masses) due to high-risk histologic results. Of 1690 subjects with 1757 masses (1079 [61.4%] benign and 678 [38.6%] malignant masses), OA/US downgraded 40.8% (3078/7535) of benign mass reads, with a specificity of 43.0% (3242/7538, 99% confidence interval [CI]: 40.4%, 45.7%) for OA/US versus 28.1% (2120/7543, 99% CI: 25.8%, 30.5%) for the internal US of the OA/US device. OA/US exceeded US in specificity by 14.9% (P < .0001; 99% CI: 12.9, 16.9%). Sensitivity for biopsied malignant masses was 96.0% (4553/4745, 99% CI: 94.5%, 97.0%) for OA/US and 98.6% (4680/4746, 99% CI: 97.8%, 99.1%) for US (P < .0001). The negative likelihood ratio of 0.094 for OA/US indicates a negative examination can reduce a maximum US-assigned pretest probability of 17.8% (low BI-RADS 4B) to a posttest probability of 2% (BI-RADS 3). Conclusion OA/US increases the specificity of breast mass assessment compared with the device internal grayscale US alone. Online supplemental material is available for this article. © RSNA, 2017.
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Affiliation(s)
- Erin I Neuschler
- From the Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Ill (E.I.N.); Department of Radiology and Biomedical Imaging, Yale University School of Medicine, PO Box 208042, New Haven, CT 06520-8042 (R.B.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.A.Y.); Radiology Imaging Associates/Invision Sally Jobe, Englewood, Colo (L.D.B.); Solis Mammography Greensboro, Greensboro, NC (M.L.B.); Weinstein Imaging Associates, Pittsburgh, Pa (M.B.V.); Elizabeth Wende Breast Care, Rochester, NY (S.D.); Breast Care Atlanta, Atlanta, Ga (P.D.); Cleveland Clinic, Cleveland, Ohio (S.R.G.); Weill Cornell Medicine, New York, NY (J.K.); UT Health San Antonio, San Antonio, Tex (K.A.K.); Boston Biostatistics Research Foundation, Framingham, Mass (P.T.L.); Department of Radiology, MedStar Georgetown University Hospital, Washington, DC (E.V.M.); Breastlink Temecula Valley, Murrieta, Calif (T.M.P.); Boca Raton Regional Hospital, Boca Raton, Fla (K.J.S.); Virginia Biomedical Laboratories, LLC, Wirtz, Va (F.L.T.); and Department of Radiology, The UT Southwestern Medical Center, Dallas, Tex (B.E.D.)
| | - Reni Butler
- From the Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Ill (E.I.N.); Department of Radiology and Biomedical Imaging, Yale University School of Medicine, PO Box 208042, New Haven, CT 06520-8042 (R.B.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.A.Y.); Radiology Imaging Associates/Invision Sally Jobe, Englewood, Colo (L.D.B.); Solis Mammography Greensboro, Greensboro, NC (M.L.B.); Weinstein Imaging Associates, Pittsburgh, Pa (M.B.V.); Elizabeth Wende Breast Care, Rochester, NY (S.D.); Breast Care Atlanta, Atlanta, Ga (P.D.); Cleveland Clinic, Cleveland, Ohio (S.R.G.); Weill Cornell Medicine, New York, NY (J.K.); UT Health San Antonio, San Antonio, Tex (K.A.K.); Boston Biostatistics Research Foundation, Framingham, Mass (P.T.L.); Department of Radiology, MedStar Georgetown University Hospital, Washington, DC (E.V.M.); Breastlink Temecula Valley, Murrieta, Calif (T.M.P.); Boca Raton Regional Hospital, Boca Raton, Fla (K.J.S.); Virginia Biomedical Laboratories, LLC, Wirtz, Va (F.L.T.); and Department of Radiology, The UT Southwestern Medical Center, Dallas, Tex (B.E.D.)
| | - Catherine A Young
- From the Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Ill (E.I.N.); Department of Radiology and Biomedical Imaging, Yale University School of Medicine, PO Box 208042, New Haven, CT 06520-8042 (R.B.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.A.Y.); Radiology Imaging Associates/Invision Sally Jobe, Englewood, Colo (L.D.B.); Solis Mammography Greensboro, Greensboro, NC (M.L.B.); Weinstein Imaging Associates, Pittsburgh, Pa (M.B.V.); Elizabeth Wende Breast Care, Rochester, NY (S.D.); Breast Care Atlanta, Atlanta, Ga (P.D.); Cleveland Clinic, Cleveland, Ohio (S.R.G.); Weill Cornell Medicine, New York, NY (J.K.); UT Health San Antonio, San Antonio, Tex (K.A.K.); Boston Biostatistics Research Foundation, Framingham, Mass (P.T.L.); Department of Radiology, MedStar Georgetown University Hospital, Washington, DC (E.V.M.); Breastlink Temecula Valley, Murrieta, Calif (T.M.P.); Boca Raton Regional Hospital, Boca Raton, Fla (K.J.S.); Virginia Biomedical Laboratories, LLC, Wirtz, Va (F.L.T.); and Department of Radiology, The UT Southwestern Medical Center, Dallas, Tex (B.E.D.)
| | - Lora D Barke
- From the Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Ill (E.I.N.); Department of Radiology and Biomedical Imaging, Yale University School of Medicine, PO Box 208042, New Haven, CT 06520-8042 (R.B.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.A.Y.); Radiology Imaging Associates/Invision Sally Jobe, Englewood, Colo (L.D.B.); Solis Mammography Greensboro, Greensboro, NC (M.L.B.); Weinstein Imaging Associates, Pittsburgh, Pa (M.B.V.); Elizabeth Wende Breast Care, Rochester, NY (S.D.); Breast Care Atlanta, Atlanta, Ga (P.D.); Cleveland Clinic, Cleveland, Ohio (S.R.G.); Weill Cornell Medicine, New York, NY (J.K.); UT Health San Antonio, San Antonio, Tex (K.A.K.); Boston Biostatistics Research Foundation, Framingham, Mass (P.T.L.); Department of Radiology, MedStar Georgetown University Hospital, Washington, DC (E.V.M.); Breastlink Temecula Valley, Murrieta, Calif (T.M.P.); Boca Raton Regional Hospital, Boca Raton, Fla (K.J.S.); Virginia Biomedical Laboratories, LLC, Wirtz, Va (F.L.T.); and Department of Radiology, The UT Southwestern Medical Center, Dallas, Tex (B.E.D.)
| | - Margaret L Bertrand
- From the Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Ill (E.I.N.); Department of Radiology and Biomedical Imaging, Yale University School of Medicine, PO Box 208042, New Haven, CT 06520-8042 (R.B.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.A.Y.); Radiology Imaging Associates/Invision Sally Jobe, Englewood, Colo (L.D.B.); Solis Mammography Greensboro, Greensboro, NC (M.L.B.); Weinstein Imaging Associates, Pittsburgh, Pa (M.B.V.); Elizabeth Wende Breast Care, Rochester, NY (S.D.); Breast Care Atlanta, Atlanta, Ga (P.D.); Cleveland Clinic, Cleveland, Ohio (S.R.G.); Weill Cornell Medicine, New York, NY (J.K.); UT Health San Antonio, San Antonio, Tex (K.A.K.); Boston Biostatistics Research Foundation, Framingham, Mass (P.T.L.); Department of Radiology, MedStar Georgetown University Hospital, Washington, DC (E.V.M.); Breastlink Temecula Valley, Murrieta, Calif (T.M.P.); Boca Raton Regional Hospital, Boca Raton, Fla (K.J.S.); Virginia Biomedical Laboratories, LLC, Wirtz, Va (F.L.T.); and Department of Radiology, The UT Southwestern Medical Center, Dallas, Tex (B.E.D.)
| | - Marcela Böhm-Vélez
- From the Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Ill (E.I.N.); Department of Radiology and Biomedical Imaging, Yale University School of Medicine, PO Box 208042, New Haven, CT 06520-8042 (R.B.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.A.Y.); Radiology Imaging Associates/Invision Sally Jobe, Englewood, Colo (L.D.B.); Solis Mammography Greensboro, Greensboro, NC (M.L.B.); Weinstein Imaging Associates, Pittsburgh, Pa (M.B.V.); Elizabeth Wende Breast Care, Rochester, NY (S.D.); Breast Care Atlanta, Atlanta, Ga (P.D.); Cleveland Clinic, Cleveland, Ohio (S.R.G.); Weill Cornell Medicine, New York, NY (J.K.); UT Health San Antonio, San Antonio, Tex (K.A.K.); Boston Biostatistics Research Foundation, Framingham, Mass (P.T.L.); Department of Radiology, MedStar Georgetown University Hospital, Washington, DC (E.V.M.); Breastlink Temecula Valley, Murrieta, Calif (T.M.P.); Boca Raton Regional Hospital, Boca Raton, Fla (K.J.S.); Virginia Biomedical Laboratories, LLC, Wirtz, Va (F.L.T.); and Department of Radiology, The UT Southwestern Medical Center, Dallas, Tex (B.E.D.)
| | - Stamatia Destounis
- From the Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Ill (E.I.N.); Department of Radiology and Biomedical Imaging, Yale University School of Medicine, PO Box 208042, New Haven, CT 06520-8042 (R.B.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.A.Y.); Radiology Imaging Associates/Invision Sally Jobe, Englewood, Colo (L.D.B.); Solis Mammography Greensboro, Greensboro, NC (M.L.B.); Weinstein Imaging Associates, Pittsburgh, Pa (M.B.V.); Elizabeth Wende Breast Care, Rochester, NY (S.D.); Breast Care Atlanta, Atlanta, Ga (P.D.); Cleveland Clinic, Cleveland, Ohio (S.R.G.); Weill Cornell Medicine, New York, NY (J.K.); UT Health San Antonio, San Antonio, Tex (K.A.K.); Boston Biostatistics Research Foundation, Framingham, Mass (P.T.L.); Department of Radiology, MedStar Georgetown University Hospital, Washington, DC (E.V.M.); Breastlink Temecula Valley, Murrieta, Calif (T.M.P.); Boca Raton Regional Hospital, Boca Raton, Fla (K.J.S.); Virginia Biomedical Laboratories, LLC, Wirtz, Va (F.L.T.); and Department of Radiology, The UT Southwestern Medical Center, Dallas, Tex (B.E.D.)
| | - Pamela Donlan
- From the Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Ill (E.I.N.); Department of Radiology and Biomedical Imaging, Yale University School of Medicine, PO Box 208042, New Haven, CT 06520-8042 (R.B.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.A.Y.); Radiology Imaging Associates/Invision Sally Jobe, Englewood, Colo (L.D.B.); Solis Mammography Greensboro, Greensboro, NC (M.L.B.); Weinstein Imaging Associates, Pittsburgh, Pa (M.B.V.); Elizabeth Wende Breast Care, Rochester, NY (S.D.); Breast Care Atlanta, Atlanta, Ga (P.D.); Cleveland Clinic, Cleveland, Ohio (S.R.G.); Weill Cornell Medicine, New York, NY (J.K.); UT Health San Antonio, San Antonio, Tex (K.A.K.); Boston Biostatistics Research Foundation, Framingham, Mass (P.T.L.); Department of Radiology, MedStar Georgetown University Hospital, Washington, DC (E.V.M.); Breastlink Temecula Valley, Murrieta, Calif (T.M.P.); Boca Raton Regional Hospital, Boca Raton, Fla (K.J.S.); Virginia Biomedical Laboratories, LLC, Wirtz, Va (F.L.T.); and Department of Radiology, The UT Southwestern Medical Center, Dallas, Tex (B.E.D.)
| | - Stephen R Grobmyer
- From the Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Ill (E.I.N.); Department of Radiology and Biomedical Imaging, Yale University School of Medicine, PO Box 208042, New Haven, CT 06520-8042 (R.B.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.A.Y.); Radiology Imaging Associates/Invision Sally Jobe, Englewood, Colo (L.D.B.); Solis Mammography Greensboro, Greensboro, NC (M.L.B.); Weinstein Imaging Associates, Pittsburgh, Pa (M.B.V.); Elizabeth Wende Breast Care, Rochester, NY (S.D.); Breast Care Atlanta, Atlanta, Ga (P.D.); Cleveland Clinic, Cleveland, Ohio (S.R.G.); Weill Cornell Medicine, New York, NY (J.K.); UT Health San Antonio, San Antonio, Tex (K.A.K.); Boston Biostatistics Research Foundation, Framingham, Mass (P.T.L.); Department of Radiology, MedStar Georgetown University Hospital, Washington, DC (E.V.M.); Breastlink Temecula Valley, Murrieta, Calif (T.M.P.); Boca Raton Regional Hospital, Boca Raton, Fla (K.J.S.); Virginia Biomedical Laboratories, LLC, Wirtz, Va (F.L.T.); and Department of Radiology, The UT Southwestern Medical Center, Dallas, Tex (B.E.D.)
| | - Janine Katzen
- From the Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Ill (E.I.N.); Department of Radiology and Biomedical Imaging, Yale University School of Medicine, PO Box 208042, New Haven, CT 06520-8042 (R.B.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.A.Y.); Radiology Imaging Associates/Invision Sally Jobe, Englewood, Colo (L.D.B.); Solis Mammography Greensboro, Greensboro, NC (M.L.B.); Weinstein Imaging Associates, Pittsburgh, Pa (M.B.V.); Elizabeth Wende Breast Care, Rochester, NY (S.D.); Breast Care Atlanta, Atlanta, Ga (P.D.); Cleveland Clinic, Cleveland, Ohio (S.R.G.); Weill Cornell Medicine, New York, NY (J.K.); UT Health San Antonio, San Antonio, Tex (K.A.K.); Boston Biostatistics Research Foundation, Framingham, Mass (P.T.L.); Department of Radiology, MedStar Georgetown University Hospital, Washington, DC (E.V.M.); Breastlink Temecula Valley, Murrieta, Calif (T.M.P.); Boca Raton Regional Hospital, Boca Raton, Fla (K.J.S.); Virginia Biomedical Laboratories, LLC, Wirtz, Va (F.L.T.); and Department of Radiology, The UT Southwestern Medical Center, Dallas, Tex (B.E.D.)
| | - Kenneth A Kist
- From the Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Ill (E.I.N.); Department of Radiology and Biomedical Imaging, Yale University School of Medicine, PO Box 208042, New Haven, CT 06520-8042 (R.B.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.A.Y.); Radiology Imaging Associates/Invision Sally Jobe, Englewood, Colo (L.D.B.); Solis Mammography Greensboro, Greensboro, NC (M.L.B.); Weinstein Imaging Associates, Pittsburgh, Pa (M.B.V.); Elizabeth Wende Breast Care, Rochester, NY (S.D.); Breast Care Atlanta, Atlanta, Ga (P.D.); Cleveland Clinic, Cleveland, Ohio (S.R.G.); Weill Cornell Medicine, New York, NY (J.K.); UT Health San Antonio, San Antonio, Tex (K.A.K.); Boston Biostatistics Research Foundation, Framingham, Mass (P.T.L.); Department of Radiology, MedStar Georgetown University Hospital, Washington, DC (E.V.M.); Breastlink Temecula Valley, Murrieta, Calif (T.M.P.); Boca Raton Regional Hospital, Boca Raton, Fla (K.J.S.); Virginia Biomedical Laboratories, LLC, Wirtz, Va (F.L.T.); and Department of Radiology, The UT Southwestern Medical Center, Dallas, Tex (B.E.D.)
| | - Philip T Lavin
- From the Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Ill (E.I.N.); Department of Radiology and Biomedical Imaging, Yale University School of Medicine, PO Box 208042, New Haven, CT 06520-8042 (R.B.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.A.Y.); Radiology Imaging Associates/Invision Sally Jobe, Englewood, Colo (L.D.B.); Solis Mammography Greensboro, Greensboro, NC (M.L.B.); Weinstein Imaging Associates, Pittsburgh, Pa (M.B.V.); Elizabeth Wende Breast Care, Rochester, NY (S.D.); Breast Care Atlanta, Atlanta, Ga (P.D.); Cleveland Clinic, Cleveland, Ohio (S.R.G.); Weill Cornell Medicine, New York, NY (J.K.); UT Health San Antonio, San Antonio, Tex (K.A.K.); Boston Biostatistics Research Foundation, Framingham, Mass (P.T.L.); Department of Radiology, MedStar Georgetown University Hospital, Washington, DC (E.V.M.); Breastlink Temecula Valley, Murrieta, Calif (T.M.P.); Boca Raton Regional Hospital, Boca Raton, Fla (K.J.S.); Virginia Biomedical Laboratories, LLC, Wirtz, Va (F.L.T.); and Department of Radiology, The UT Southwestern Medical Center, Dallas, Tex (B.E.D.)
| | - Erini V Makariou
- From the Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Ill (E.I.N.); Department of Radiology and Biomedical Imaging, Yale University School of Medicine, PO Box 208042, New Haven, CT 06520-8042 (R.B.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.A.Y.); Radiology Imaging Associates/Invision Sally Jobe, Englewood, Colo (L.D.B.); Solis Mammography Greensboro, Greensboro, NC (M.L.B.); Weinstein Imaging Associates, Pittsburgh, Pa (M.B.V.); Elizabeth Wende Breast Care, Rochester, NY (S.D.); Breast Care Atlanta, Atlanta, Ga (P.D.); Cleveland Clinic, Cleveland, Ohio (S.R.G.); Weill Cornell Medicine, New York, NY (J.K.); UT Health San Antonio, San Antonio, Tex (K.A.K.); Boston Biostatistics Research Foundation, Framingham, Mass (P.T.L.); Department of Radiology, MedStar Georgetown University Hospital, Washington, DC (E.V.M.); Breastlink Temecula Valley, Murrieta, Calif (T.M.P.); Boca Raton Regional Hospital, Boca Raton, Fla (K.J.S.); Virginia Biomedical Laboratories, LLC, Wirtz, Va (F.L.T.); and Department of Radiology, The UT Southwestern Medical Center, Dallas, Tex (B.E.D.)
| | - Tchaiko M Parris
- From the Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Ill (E.I.N.); Department of Radiology and Biomedical Imaging, Yale University School of Medicine, PO Box 208042, New Haven, CT 06520-8042 (R.B.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.A.Y.); Radiology Imaging Associates/Invision Sally Jobe, Englewood, Colo (L.D.B.); Solis Mammography Greensboro, Greensboro, NC (M.L.B.); Weinstein Imaging Associates, Pittsburgh, Pa (M.B.V.); Elizabeth Wende Breast Care, Rochester, NY (S.D.); Breast Care Atlanta, Atlanta, Ga (P.D.); Cleveland Clinic, Cleveland, Ohio (S.R.G.); Weill Cornell Medicine, New York, NY (J.K.); UT Health San Antonio, San Antonio, Tex (K.A.K.); Boston Biostatistics Research Foundation, Framingham, Mass (P.T.L.); Department of Radiology, MedStar Georgetown University Hospital, Washington, DC (E.V.M.); Breastlink Temecula Valley, Murrieta, Calif (T.M.P.); Boca Raton Regional Hospital, Boca Raton, Fla (K.J.S.); Virginia Biomedical Laboratories, LLC, Wirtz, Va (F.L.T.); and Department of Radiology, The UT Southwestern Medical Center, Dallas, Tex (B.E.D.)
| | - Kathy J Schilling
- From the Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Ill (E.I.N.); Department of Radiology and Biomedical Imaging, Yale University School of Medicine, PO Box 208042, New Haven, CT 06520-8042 (R.B.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.A.Y.); Radiology Imaging Associates/Invision Sally Jobe, Englewood, Colo (L.D.B.); Solis Mammography Greensboro, Greensboro, NC (M.L.B.); Weinstein Imaging Associates, Pittsburgh, Pa (M.B.V.); Elizabeth Wende Breast Care, Rochester, NY (S.D.); Breast Care Atlanta, Atlanta, Ga (P.D.); Cleveland Clinic, Cleveland, Ohio (S.R.G.); Weill Cornell Medicine, New York, NY (J.K.); UT Health San Antonio, San Antonio, Tex (K.A.K.); Boston Biostatistics Research Foundation, Framingham, Mass (P.T.L.); Department of Radiology, MedStar Georgetown University Hospital, Washington, DC (E.V.M.); Breastlink Temecula Valley, Murrieta, Calif (T.M.P.); Boca Raton Regional Hospital, Boca Raton, Fla (K.J.S.); Virginia Biomedical Laboratories, LLC, Wirtz, Va (F.L.T.); and Department of Radiology, The UT Southwestern Medical Center, Dallas, Tex (B.E.D.)
| | - F Lee Tucker
- From the Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Ill (E.I.N.); Department of Radiology and Biomedical Imaging, Yale University School of Medicine, PO Box 208042, New Haven, CT 06520-8042 (R.B.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.A.Y.); Radiology Imaging Associates/Invision Sally Jobe, Englewood, Colo (L.D.B.); Solis Mammography Greensboro, Greensboro, NC (M.L.B.); Weinstein Imaging Associates, Pittsburgh, Pa (M.B.V.); Elizabeth Wende Breast Care, Rochester, NY (S.D.); Breast Care Atlanta, Atlanta, Ga (P.D.); Cleveland Clinic, Cleveland, Ohio (S.R.G.); Weill Cornell Medicine, New York, NY (J.K.); UT Health San Antonio, San Antonio, Tex (K.A.K.); Boston Biostatistics Research Foundation, Framingham, Mass (P.T.L.); Department of Radiology, MedStar Georgetown University Hospital, Washington, DC (E.V.M.); Breastlink Temecula Valley, Murrieta, Calif (T.M.P.); Boca Raton Regional Hospital, Boca Raton, Fla (K.J.S.); Virginia Biomedical Laboratories, LLC, Wirtz, Va (F.L.T.); and Department of Radiology, The UT Southwestern Medical Center, Dallas, Tex (B.E.D.)
| | - Basak E Dogan
- From the Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Ill (E.I.N.); Department of Radiology and Biomedical Imaging, Yale University School of Medicine, PO Box 208042, New Haven, CT 06520-8042 (R.B.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.A.Y.); Radiology Imaging Associates/Invision Sally Jobe, Englewood, Colo (L.D.B.); Solis Mammography Greensboro, Greensboro, NC (M.L.B.); Weinstein Imaging Associates, Pittsburgh, Pa (M.B.V.); Elizabeth Wende Breast Care, Rochester, NY (S.D.); Breast Care Atlanta, Atlanta, Ga (P.D.); Cleveland Clinic, Cleveland, Ohio (S.R.G.); Weill Cornell Medicine, New York, NY (J.K.); UT Health San Antonio, San Antonio, Tex (K.A.K.); Boston Biostatistics Research Foundation, Framingham, Mass (P.T.L.); Department of Radiology, MedStar Georgetown University Hospital, Washington, DC (E.V.M.); Breastlink Temecula Valley, Murrieta, Calif (T.M.P.); Boca Raton Regional Hospital, Boca Raton, Fla (K.J.S.); Virginia Biomedical Laboratories, LLC, Wirtz, Va (F.L.T.); and Department of Radiology, The UT Southwestern Medical Center, Dallas, Tex (B.E.D.)
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47
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Li L, Pang X, Liu G. Near-Infrared Light-Triggered Polymeric Nanomicelles for Cancer Therapy and Imaging. ACS Biomater Sci Eng 2017; 4:1928-1941. [DOI: 10.1021/acsbiomaterials.7b00648] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Lei Li
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics and Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, 361102, China
| | - Xin Pang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics and Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, 361102, China
| | - Gang Liu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics and Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, 361102, China
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48
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Phan TTV, Bui NQ, Moorthy MS, Lee KD, Oh J. Synthesis and In Vitro Performance of Polypyrrole-Coated Iron-Platinum Nanoparticles for Photothermal Therapy and Photoacoustic Imaging. NANOSCALE RESEARCH LETTERS 2017; 12:570. [PMID: 29046993 PMCID: PMC5647319 DOI: 10.1186/s11671-017-2337-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Accepted: 10/08/2017] [Indexed: 05/24/2023]
Abstract
Multifunctional nano-platform for the combination of photo-based therapy and photoacoustic imaging (PAI) for cancer treatment has recently attracted much attention to nanotechnology development. In this study, we developed iron-platinum nanoparticles (FePt NPs) with the polypyrrole (PPy) coating as novel agents for combined photothermal therapy (PTT) and PAI. The obtained PPy-coated FePt NPs (FePt@PPy NPs) showed excellent biocompatibility, photothermal stability, and high near-infrared (NIR) absorbance for the combination of PTT and PAI. In vitro investigation experimentally demonstrated the effectiveness of FePt@PPy NPs in killing cancer cells with NIR laser irradiation. Moreover, the phantom test of PAI used in conjunction with FePt@PPy NPs showed a strong photoacoustic signal. Thus, the novel FePt@PPy NPs could be considered as promising multifunctional nanoparticles for further applications of photo-based diagnosis and treatment.
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Affiliation(s)
- Thi Tuong Vy Phan
- Marine-Integrated Bionics Research Center, Pukyong National University, Busan, 48513, Republic of Korea
- Interdisciplinary Program of Biomedical Mechanical & Electrical Engineering, Pukyong National University, Busan, 48513, Republic of Korea
| | - Nhat Quang Bui
- Marine-Integrated Bionics Research Center, Pukyong National University, Busan, 48513, Republic of Korea
- Interdisciplinary Program of Biomedical Mechanical & Electrical Engineering, Pukyong National University, Busan, 48513, Republic of Korea
| | - Madhappan Santha Moorthy
- Marine-Integrated Bionics Research Center, Pukyong National University, Busan, 48513, Republic of Korea
| | - Kang Dae Lee
- Department of Otolaryngology - Head and Neck Surgery, Kosin University College of Medicine, Busan, 49267, Republic of Korea
| | - Junghwan Oh
- Marine-Integrated Bionics Research Center, Pukyong National University, Busan, 48513, Republic of Korea.
- Department of Biomedical Engineering and Center for Marine-Integrated Biotechnology (BK21 Plus), Pukyong National University, Busan, 48513, Republic of Korea.
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49
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Chen G, Xu M, Zhao S, Sun J, Yu Q, Liu J. Pompon-like RuNPs-Based Theranostic Nanocarrier System with Stable Photoacoustic Imaging Characteristic for Accurate Tumor Detection and Efficient Phototherapy Guidance. ACS APPLIED MATERIALS & INTERFACES 2017; 9:33645-33659. [PMID: 28895715 DOI: 10.1021/acsami.7b10553] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Even though numerous therapeutic methods exist for cancer treatment, many fail to achieve ideal outcomes or have severe side effects. Here, we describe a theranostic nanocarrier system with improved tumor vasculature detection and tumor margin quantification that increases the accuracy and guidance efficiency of phototherapy. Novel pompon-like RuNPs with superb photothermal properties and high encapsulation efficiency were first synthesized via the polyol reducing method. Based on these RuNPs, we then developed a multifunctional theranostic system, pRu-pNIPAM@RBT, composed of poly(N-isopropylacrylamide) as the thermal-response switch and of [Ru(bpy)2(tip)]2+ as the photosensitizer of PDT and the contrast agent of biomedical imaging. We demonstrate that the pRu-pNIPAM@RBT can generate intracellular hyperthermia and reactive oxygen species (ROS) for simultaneous photothermal therapy (PTT) and photodynamic therapy (PDT) by laser activation. In contrast to other studies, our work highlights the integration of quantitative analysis of infrared thermal imaging and PA imaging data, which can distinguish between tumor and healthy tissues and guide the destructive but precise phototherapy and decrease nonspecific tissue injury. Considering the excellent in vivo antitumor phototherapeutic effects, this strategy may help preclinical researchers gain insight into theoretical as well as practical aspects of precision cancer therapy.
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Affiliation(s)
- Gengjia Chen
- Department of Chemistry, Jinan University , Guangzhou 510632, China
| | - Meng Xu
- Department of Chemistry, Jinan University , Guangzhou 510632, China
| | - Shuang Zhao
- Department of Chemistry, Jinan University , Guangzhou 510632, China
| | - Jing Sun
- Department of Chemistry, Jinan University , Guangzhou 510632, China
| | - Qianqian Yu
- Department of Chemistry, Jinan University , Guangzhou 510632, China
| | - Jie Liu
- Department of Chemistry, Jinan University , Guangzhou 510632, China
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50
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Meimani N, Abani N, Gelovani J, Avanaki MR. A numerical analysis of a semi-dry coupling configuration in photoacoustic computed tomography for infant brain imaging. PHOTOACOUSTICS 2017; 7:27-35. [PMID: 28702357 PMCID: PMC5487250 DOI: 10.1016/j.pacs.2017.06.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Revised: 05/13/2017] [Accepted: 06/06/2017] [Indexed: 05/04/2023]
Abstract
In the application of photoacoustic human infant brain imaging, debubbled ultrasound gel or water is commonly used as a couplant for ultrasonic transducers due to their acoustic properties. The main challenge in using such a couplant is its discomfort for the patient. In this study, we explore the feasibility of a semi-dry coupling configuration to be used in photoacoustic computed tomography (PACT) systems. The coupling system includes an inflatable container consisting of a thin layer of Aqualene with ultrasound gel or water inside of it. Finite element method (FEM) is used for static and dynamic structural analysis of the proposed configuration to be used in PACT for infant brain imaging. The outcome of the analysis is an optimum thickness of Aqualene in order to meet the weight tolerance requirement with the least attenuation and best impedance match to recommend for an experimental setting.
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Affiliation(s)
- Najme Meimani
- Department of Chemical Engineering and Materials Science, Wayne State University, Detroit, MI, USA
- Basir Eye Health Research Center, Tehran, Iran
| | - Nina Abani
- Department of Chemical Engineering and Materials Science, Wayne State University, Detroit, MI, USA
| | - Juri Gelovani
- Department of Biomedical Engineering, Wayne State University, Detroit, MI, USA
- Barbara Ann Karmanos Cancer Institute, Detroit, MI, USA
| | - Mohammad R.N Avanaki
- Department of Biomedical Engineering, Wayne State University, Detroit, MI, USA
- Department of Neurology, Wayne State University School of Medicine, Detroit, MI, USA
- Barbara Ann Karmanos Cancer Institute, Detroit, MI, USA
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