1
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Rehman S, Nadeem A, Akram U, Sarwar A, Quraishi A, Siddiqui H, Malik MAJ, Nabi M, Ul Haq I, Cho A, Mazumdar I, Kim M, Chen K, Sepehri S, Wang R, Balar AB, Lakhani DA, Yedavalli VS. Molecular Mechanisms of Ischemic Stroke: A Review Integrating Clinical Imaging and Therapeutic Perspectives. Biomedicines 2024; 12:812. [PMID: 38672167 PMCID: PMC11048412 DOI: 10.3390/biomedicines12040812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 03/28/2024] [Accepted: 04/01/2024] [Indexed: 04/28/2024] Open
Abstract
Ischemic stroke poses a significant global health challenge, necessitating ongoing exploration of its pathophysiology and treatment strategies. This comprehensive review integrates various aspects of ischemic stroke research, emphasizing crucial mechanisms, therapeutic approaches, and the role of clinical imaging in disease management. It discusses the multifaceted role of Netrin-1, highlighting its potential in promoting neurovascular repair and mitigating post-stroke neurological decline. It also examines the impact of blood-brain barrier permeability on stroke outcomes and explores alternative therapeutic targets such as statins and sphingosine-1-phosphate signaling. Neurocardiology investigations underscore the contribution of cardiac factors to post-stroke mortality, emphasizing the importance of understanding the brain-heart axis for targeted interventions. Additionally, the review advocates for early reperfusion and neuroprotective agents to counter-time-dependent excitotoxicity and inflammation, aiming to preserve tissue viability. Advanced imaging techniques, including DWI, PI, and MR angiography, are discussed for their role in evaluating ischemic penumbra evolution and guiding therapeutic decisions. By integrating molecular insights with imaging modalities, this interdisciplinary approach enhances our understanding of ischemic stroke and offers promising avenues for future research and clinical interventions to improve patient outcomes.
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Affiliation(s)
- Sana Rehman
- Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA; (M.N.); (A.C.); (I.M.); (M.K.); (K.C.); (S.S.); (R.W.); (A.B.B.); (D.A.L.); (V.S.Y.)
| | - Arsalan Nadeem
- Department of Medicine, Allama Iqbal Medical College, Lahore 54700, Pakistan;
| | - Umar Akram
- Department of Medicine, Allama Iqbal Medical College, Lahore 54700, Pakistan;
| | - Abeer Sarwar
- Department of Medicine, Fatima Memorial Hospital College of Medicine and Dentistry, Lahore 54000, Pakistan; (A.S.); (H.S.)
| | - Ammara Quraishi
- Department of Medicine, Dow University of Health Sciences, Karachi 74200, Pakistan;
| | - Hina Siddiqui
- Department of Medicine, Fatima Memorial Hospital College of Medicine and Dentistry, Lahore 54000, Pakistan; (A.S.); (H.S.)
| | | | - Mehreen Nabi
- Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA; (M.N.); (A.C.); (I.M.); (M.K.); (K.C.); (S.S.); (R.W.); (A.B.B.); (D.A.L.); (V.S.Y.)
| | - Ihtisham Ul Haq
- Department of Medicine, Amna Inayat Medical College, Sheikhupura 54300, Pakistan;
| | - Andrew Cho
- Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA; (M.N.); (A.C.); (I.M.); (M.K.); (K.C.); (S.S.); (R.W.); (A.B.B.); (D.A.L.); (V.S.Y.)
| | - Ishan Mazumdar
- Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA; (M.N.); (A.C.); (I.M.); (M.K.); (K.C.); (S.S.); (R.W.); (A.B.B.); (D.A.L.); (V.S.Y.)
| | - Minsoo Kim
- Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA; (M.N.); (A.C.); (I.M.); (M.K.); (K.C.); (S.S.); (R.W.); (A.B.B.); (D.A.L.); (V.S.Y.)
| | - Kevin Chen
- Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA; (M.N.); (A.C.); (I.M.); (M.K.); (K.C.); (S.S.); (R.W.); (A.B.B.); (D.A.L.); (V.S.Y.)
| | - Sadra Sepehri
- Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA; (M.N.); (A.C.); (I.M.); (M.K.); (K.C.); (S.S.); (R.W.); (A.B.B.); (D.A.L.); (V.S.Y.)
| | - Richard Wang
- Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA; (M.N.); (A.C.); (I.M.); (M.K.); (K.C.); (S.S.); (R.W.); (A.B.B.); (D.A.L.); (V.S.Y.)
| | - Aneri B. Balar
- Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA; (M.N.); (A.C.); (I.M.); (M.K.); (K.C.); (S.S.); (R.W.); (A.B.B.); (D.A.L.); (V.S.Y.)
| | - Dhairya A. Lakhani
- Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA; (M.N.); (A.C.); (I.M.); (M.K.); (K.C.); (S.S.); (R.W.); (A.B.B.); (D.A.L.); (V.S.Y.)
| | - Vivek S. Yedavalli
- Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA; (M.N.); (A.C.); (I.M.); (M.K.); (K.C.); (S.S.); (R.W.); (A.B.B.); (D.A.L.); (V.S.Y.)
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Nagli M, Koch J, Hazan Y, Levi A, Ternyak O, Overmeyer L, Rosenthal A. High-resolution silicon photonics focused ultrasound transducer with a sub-millimeter aperture. OPTICS LETTERS 2023; 48:2668-2671. [PMID: 37186736 DOI: 10.1364/ol.486567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
We present an all-optical focused ultrasound transducer with a sub-millimeter aperture and demonstrate its capability for high-resolution imaging of tissue ex vivo. The transducer is composed of a wideband silicon photonics ultrasound detector and a miniature acoustic lens coated with a thin optically absorbing metallic layer used to produce laser-generated ultrasound. The demonstrated device achieves axial resolution and lateral resolutions of 12 μm and 60 μm, respectively, well below typical values achieved by conventional piezoelectric intravascular ultrasound. The size and resolution of the developed transducer may enable its use for intravascular imaging of thin fibrous cap atheroma.
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3
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Rauschendorfer P, Wissmeyer G, Jaffer FA, Gorpas D, Ntziachristos V. Accounting for blood attenuation in intravascular near-infrared fluorescence-ultrasound imaging using a fluorophore-coated guidewire. JOURNAL OF BIOMEDICAL OPTICS 2023; 28:046001. [PMID: 37035030 PMCID: PMC10073749 DOI: 10.1117/1.jbo.28.4.046001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 03/20/2023] [Indexed: 05/18/2023]
Abstract
Significance Intravascular near-infrared fluorescence (NIRF) imaging aims to improve the inspection of vascular pathology using fluorescent agents with specificity to vascular disease biomarkers. The method has been developed to operate in tandem with an anatomical modality, such as intravascular ultrasound (IVUS), and complements anatomical readings with pathophysiological contrast, enhancing the information obtained from the hybrid examination. Aim However, attenuation of NIRF signals by blood challenges NIRF quantification. We propose a new method for attenuation correction in NIRF intravascular imaging based on a fluorophore-coated guidewire that is used as a reference for the fluorescence measurement and provides a real-time measurement of blood attenuation during the NIRF examination. Approach We examine the performance of the method in a porcine coronary artery ex vivo and phantoms using a 3.2F NIRF-IVUS catheter. Results We demonstrate marked improvement over uncorrected signals of up to 4.5-fold and errors of < 11 % for target signals acquired at distances up to 1 mm from the catheter system employed. Conclusions The method offers a potential means of improving the accuracy of intravascular NIRF imaging under in vivo conditions.
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Affiliation(s)
- Philipp Rauschendorfer
- Technical University of Munich, Chair of Biological Imaging at the Central Institute for Translational Cancer Research (TranslaTUM), School of Medicine, Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| | - Georg Wissmeyer
- Massachusetts General Hospital, Cardiovascular Research Center, Cardiology Division, Boston, Massachusetts, United States
| | - Farouc A. Jaffer
- Massachusetts General Hospital, Cardiovascular Research Center, Cardiology Division, Boston, Massachusetts, United States
- Massachusetts General Hospital, Wellman Center for Photomedicine, Boston, Massachusetts, United States
| | - Dimitris Gorpas
- Technical University of Munich, Chair of Biological Imaging at the Central Institute for Translational Cancer Research (TranslaTUM), School of Medicine, Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| | - Vasilis Ntziachristos
- Technical University of Munich, Chair of Biological Imaging at the Central Institute for Translational Cancer Research (TranslaTUM), School of Medicine, Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany
- Address all correspondence to Vasilis Ntziachristos,
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4
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Seguchi M, Aytekin A, Lenz T, Nicol P, Klosterman GR, Beele A, Sabic E, Utsch L, Alyaqoob A, Gorpas D, Ntziachristos V, Jaffer FA, Rauschendorfer P, Joner M. Intravascular molecular imaging: translating pathophysiology of atherosclerosis into human disease conditions. Eur Heart J Cardiovasc Imaging 2022; 24:e1-e16. [PMID: 36002376 DOI: 10.1093/ehjci/jeac163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 07/31/2022] [Indexed: 12/25/2022] Open
Abstract
Progression of atherosclerotic plaque in coronary arteries is characterized by complex cellular and non-cellular molecular interactions. Within recent years, atherosclerosis has been recognized as inflammation-driven disease condition, where progressive stages are characterized by morphological changes in plaque composition but also relevant molecular processes resulting in increased plaque vulnerability. While existing intravascular imaging modalities are able to resolve key morphological features during plaque progression, they lack capability to characterize the molecular profile of advanced atherosclerotic plaque. Because hybrid imaging modalities may provide incremental information related to plaque biology, they are expected to provide synergistic effects in detecting high risk patients and lesions. The aim of this article is to review existing literature on intravascular molecular imaging approaches, and to provide clinically oriented proposals of their application. In addition, we assembled an overview of future developments in this field geared towards detection of patients at risk for cardiovascular events.
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Affiliation(s)
- Masaru Seguchi
- Klinik für Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Technical University Munich, Munich 80636, Germany
| | - Alp Aytekin
- Klinik für Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Technical University Munich, Munich 80636, Germany
| | - Tobias Lenz
- Klinik für Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Technical University Munich, Munich 80636, Germany
| | - Philipp Nicol
- Klinik für Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Technical University Munich, Munich 80636, Germany
| | - Grace R Klosterman
- Klinik für Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Technical University Munich, Munich 80636, Germany
| | - Alicia Beele
- Klinik für Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Technical University Munich, Munich 80636, Germany
| | - Emina Sabic
- Klinik für Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Technical University Munich, Munich 80636, Germany
| | - Léa Utsch
- Klinik für Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Technical University Munich, Munich 80636, Germany
| | - Aseel Alyaqoob
- Klinik für Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Technical University Munich, Munich 80636, Germany
| | - Dimitris Gorpas
- Chair of Biological Imaging and TranslaTUM, Technical University of Munich, Munich 80333, Germany.,Institute of Biological and Medical Imaging, Helmholtz Zentrum München GmbH, Neuherberg 85764, Germany
| | - Vasilis Ntziachristos
- Chair of Biological Imaging and TranslaTUM, Technical University of Munich, Munich 80333, Germany.,Institute of Biological and Medical Imaging, Helmholtz Zentrum München GmbH, Neuherberg 85764, Germany.,Deutsches Zentrum für Herz- und Kreislauf-Forschung (DZHK) e.V. (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich 80336, Germany
| | - Farouc A Jaffer
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Philipp Rauschendorfer
- Chair of Biological Imaging and TranslaTUM, Technical University of Munich, Munich 80333, Germany.,Institute of Biological and Medical Imaging, Helmholtz Zentrum München GmbH, Neuherberg 85764, Germany.,Deutsches Zentrum für Herz- und Kreislauf-Forschung (DZHK) e.V. (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich 80336, Germany
| | - Michael Joner
- Klinik für Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Technical University Munich, Munich 80636, Germany.,Deutsches Zentrum für Herz- und Kreislauf-Forschung (DZHK) e.V. (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich 80336, Germany
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5
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Refaat A, Yap ML, Pietersz G, Walsh APG, Zeller J, Del Rosal B, Wang X, Peter K. In vivo fluorescence imaging: success in preclinical imaging paves the way for clinical applications. J Nanobiotechnology 2022; 20:450. [PMID: 36243718 PMCID: PMC9571426 DOI: 10.1186/s12951-022-01648-7] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 09/23/2022] [Indexed: 11/10/2022] Open
Abstract
Advances in diagnostic imaging have provided unprecedented opportunities to detect diseases at early stages and with high reliability. Diagnostic imaging is also crucial to monitoring the progress or remission of disease and thus is often the central basis of therapeutic decision-making. Currently, several diagnostic imaging modalities (computed tomography, magnetic resonance imaging, and positron emission tomography, among others) are routinely used in clinics and present their own advantages and limitations. In vivo near-infrared (NIR) fluorescence imaging has recently emerged as an attractive imaging modality combining low cost, high sensitivity, and relative safety. As a preclinical tool, it can be used to investigate disease mechanisms and for testing novel diagnostics and therapeutics prior to their clinical use. However, the limited depth of tissue penetration is a major challenge to efficient clinical use. Therefore, the current clinical use of fluorescence imaging is limited to a few applications such as image-guided surgery on tumors and retinal angiography, using FDA-approved dyes. Progress in fluorophore development and NIR imaging technologies holds promise to extend their clinical application to oncology, cardiovascular diseases, plastic surgery, and brain imaging, among others. Nanotechnology is expected to revolutionize diagnostic in vivo fluorescence imaging through targeted delivery of NIR fluorescent probes using antibody conjugation. In this review, we discuss the latest advances in in vivo fluorescence imaging technologies, NIR fluorescent probes, and current and future clinical applications.
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Affiliation(s)
- Ahmed Refaat
- Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia.,Molecular Imaging and Theranostics Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia.,Department of Engineering Technologies, Swinburne University of Technology, Melbourne, VIC, Australia.,Pharmaceutics Department, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - May Lin Yap
- Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - Geoffrey Pietersz
- Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia.,Burnet Institute, Melbourne, VIC, Australia.,Department of Cardiometabolic Health, University of Melbourne, Melbourne, VIC, Australia
| | - Aidan Patrick Garing Walsh
- Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia.,Molecular Imaging and Theranostics Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia.,Department of Medicine, Monash University, Melbourne, VIC, Australia
| | - Johannes Zeller
- Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia.,Department of Plastic and Hand Surgery, University of Freiburg Medical Center, Freiburg, Germany
| | | | - Xiaowei Wang
- Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia. .,Molecular Imaging and Theranostics Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia. .,Department of Cardiometabolic Health, University of Melbourne, Melbourne, VIC, Australia. .,Department of Medicine, Monash University, Melbourne, VIC, Australia. .,Baker Department of Cardiovascular Research, Translation and Implementation, La Trobe University, Melbourne, VIC, Australia.
| | - Karlheinz Peter
- Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia. .,Department of Cardiometabolic Health, University of Melbourne, Melbourne, VIC, Australia. .,Department of Medicine, Monash University, Melbourne, VIC, Australia. .,Baker Department of Cardiovascular Research, Translation and Implementation, La Trobe University, Melbourne, VIC, Australia.
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6
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Mattesini A, Demola P, Shlofmitz R, Shlofmitz E, Waksman R, Jaffer FA, Di Mario C. Optical Coherence Tomography, Near‐Infrared Spectroscopy, and Near‐Infrared Fluorescence Molecular Imaging. Interv Cardiol 2022. [DOI: 10.1002/9781119697367.ch9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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7
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Jaffer FA, Bhowmik JP. Lighting Up Adherent LDL in Plaques via Near-Infrared Fluorescence Molecular Imaging. JACC: CARDIOVASCULAR IMAGING 2022; 15:1471-1472. [DOI: 10.1016/j.jcmg.2022.04.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 04/11/2022] [Indexed: 11/17/2022]
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8
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Iwata H, Osborn EA, Ughi GJ, Murakami K, Goettsch C, Hutcheson JD, Mauskapf A, Mattson PC, Libby P, Singh SA, Matamalas J, Aikawa E, Tearney GJ, Aikawa M, Jaffer FA. Highly Selective PPARα (Peroxisome Proliferator-Activated Receptor α) Agonist Pemafibrate Inhibits Stent Inflammation and Restenosis Assessed by Multimodality Molecular-Microstructural Imaging. J Am Heart Assoc 2021; 10:e020834. [PMID: 34632804 PMCID: PMC8751880 DOI: 10.1161/jaha.121.020834] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
BACKGROUND New pharmacological approaches are needed to prevent stent restenosis. This study tested the hypothesis that pemafibrate, a novel clinical selective PPARα (peroxisome proliferator‐activated receptor α) agonist, suppresses coronary stent‐induced arterial inflammation and neointimal hyperplasia. METHODS AND RESULTS Yorkshire pigs randomly received either oral pemafibrate (30 mg/day; n=6) or control vehicle (n=7) for 7 days, followed by coronary arterial implantation of 3.5 × 12 mm bare metal stents (2–4 per animal; 44 stents total). On day 7, intracoronary molecular‐structural near‐infrared fluorescence and optical coherence tomography imaging was performed to assess the arterial inflammatory response, demonstrating that pemafibrate reduced stent‐induced inflammatory protease activity (near‐infrared fluorescence target‐to‐background ratio: pemafibrate, median [25th‐75th percentile]: 2.8 [2.5–3.3] versus control, 4.1 [3.3–4.3], P=0.02). At day 28, animals underwent repeat near‐infrared fluorescence–optical coherence tomography imaging and were euthanized, and coronary stent tissue molecular and histological analyses. Day 28 optical coherence tomography imaging showed that pemafibrate significantly reduced stent neointima volume (pemafibrate, 43.1 [33.7–54.1] mm3 versus control, 54.2 [41.2–81.1] mm3; P=0.03). In addition, pemafibrate suppressed day 28 stent‐induced cellular inflammation and neointima expression of the inflammatory mediators TNF‐α (tumor necrosis factor‐α) and MMP‐9 (matrix metalloproteinase 9) and enhanced the smooth muscle differentiation markers calponin and smoothelin. In vitro assays indicated that the STAT3 (signal transducer and activator of transcription 3)–myocardin axes mediated the inhibitory effects of pemafibrate on smooth muscle cell proliferation. CONCLUSIONS Pemafibrate reduces preclinical coronary stent inflammation and neointimal hyperplasia following bare metal stent deployment. These results motivate further trials evaluating pemafibrate as a new strategy to prevent clinical stent restenosis.
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Affiliation(s)
- Hiroshi Iwata
- Center for Interdisciplinary Cardiovascular Sciences Cardiovascular Division Brigham and Women's Hospital Harvard Medical School Boston MA.,Department of Cardiovascular Biology and Medicine Juntendo University Graduate School of Medicine Tokyo Japan
| | - Eric A Osborn
- Cardiovascular Research CenterCardiology DivisionMassachusetts General HospitalHarvard Medical School Boston MA.,Cardiology Division Beth Israel Deaconess Medical CenterHarvard Medical School Boston MA
| | - Giovanni J Ughi
- Wellman Center for Photomedicine Massachusetts General HospitalHarvard Medical School Boston MA
| | - Kentaro Murakami
- Center for Interdisciplinary Cardiovascular Sciences Cardiovascular Division Brigham and Women's Hospital Harvard Medical School Boston MA
| | - Claudia Goettsch
- Center for Interdisciplinary Cardiovascular Sciences Cardiovascular Division Brigham and Women's Hospital Harvard Medical School Boston MA
| | - Joshua D Hutcheson
- Center for Interdisciplinary Cardiovascular Sciences Cardiovascular Division Brigham and Women's Hospital Harvard Medical School Boston MA
| | - Adam Mauskapf
- Cardiovascular Research CenterCardiology DivisionMassachusetts General HospitalHarvard Medical School Boston MA
| | - Peter C Mattson
- Center for Interdisciplinary Cardiovascular Sciences Cardiovascular Division Brigham and Women's Hospital Harvard Medical School Boston MA
| | - Peter Libby
- Center for Excellence in Vascular Biology Cardiovascular Division Brigham and Women's Hospital Harvard Medical School Boston MA
| | - Sasha A Singh
- Center for Interdisciplinary Cardiovascular Sciences Cardiovascular Division Brigham and Women's Hospital Harvard Medical School Boston MA
| | - Joan Matamalas
- Center for Interdisciplinary Cardiovascular Sciences Cardiovascular Division Brigham and Women's Hospital Harvard Medical School Boston MA
| | - Elena Aikawa
- Center for Interdisciplinary Cardiovascular Sciences Cardiovascular Division Brigham and Women's Hospital Harvard Medical School Boston MA.,Center for Excellence in Vascular Biology Cardiovascular Division Brigham and Women's Hospital Harvard Medical School Boston MA.,Department of Human Pathology I.M. Sechenov First Moscow State Medical University of the Ministry of Health Moscow Russian Federation
| | - Guillermo J Tearney
- Wellman Center for Photomedicine Massachusetts General HospitalHarvard Medical School Boston MA.,Department of Pathology Massachusetts General HospitalHarvard Medical School Boston MA
| | - Masanori Aikawa
- Center for Interdisciplinary Cardiovascular Sciences Cardiovascular Division Brigham and Women's Hospital Harvard Medical School Boston MA.,Center for Excellence in Vascular Biology Cardiovascular Division Brigham and Women's Hospital Harvard Medical School Boston MA.,Channing Division of Network Medicine Brigham and Women's HospitalHarvard Medical School Boston MA
| | - Farouc A Jaffer
- Cardiovascular Research CenterCardiology DivisionMassachusetts General HospitalHarvard Medical School Boston MA.,Wellman Center for Photomedicine Massachusetts General HospitalHarvard Medical School Boston MA
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9
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Kellnberger S, Wissmeyer G, Albaghdadi M, Piao Z, Li W, Mauskapf A, Rauschendorfer P, Tearney GJ, Ntziachristos V, Jaffer FA. Intravascular molecular-structural imaging with a miniaturized integrated near-infrared fluorescence and ultrasound catheter. JOURNAL OF BIOPHOTONICS 2021; 14:e202100048. [PMID: 34164943 PMCID: PMC8492488 DOI: 10.1002/jbio.202100048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 05/11/2021] [Accepted: 06/10/2021] [Indexed: 05/29/2023]
Abstract
Coronary artery disease (CAD) remains a leading cause of mortality and warrants new imaging approaches to better guide clinical care. We report on a miniaturized, hybrid intravascular catheter and imaging system for comprehensive coronary artery imaging in vivo. Our catheter exhibits a total diameter of 1.0 mm (3.0 French), equivalent to standalone clinical intravascular ultrasound (IVUS) catheters but enables simultaneous near-infrared fluorescence (NIRF) and IVUS molecular-structural imaging. We demonstrate NIRF-IVUS imaging in vitro in coronary stents using NIR fluorophores, and compare NIRF signal strengths for prism and ball lens sensor designs in both low and high scattering media. Next, in vivo intravascular imaging in pig coronary arteries demonstrates simultaneous, co-registered molecular-structural imaging of experimental CAD inflammation on IVUS and distance-corrected NIRF images. The obtained results suggest substantial potential for the NIRF-IVUS catheter to advance standalone IVUS, and enable comprehensive phenotyping of vascular disease to better assess and treat patients with CAD.
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Affiliation(s)
- Stephan Kellnberger
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Boston, MA 02114
| | - Georg Wissmeyer
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Boston, MA 02114
| | - Mazen Albaghdadi
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Boston, MA 02114
| | - Zhonglie Piao
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114
| | - Wenzhu Li
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Boston, MA 02114
| | - Adam Mauskapf
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Boston, MA 02114
| | - Philipp Rauschendorfer
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
- Chair of Biological Imaging, Central Institute for Translational Cancer Research (TranslaTUM), Technical University of Munich, Germany
| | - Guillermo J. Tearney
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114
| | - Vasilis Ntziachristos
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
- Chair of Biological Imaging, Central Institute for Translational Cancer Research (TranslaTUM), Technical University of Munich, Germany
| | - Farouc A. Jaffer
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Boston, MA 02114
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114
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10
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Ha K, Zheng X, Kessinger CW, Mauskapf A, Li W, Kawamura Y, Orii M, Hilderbrand SA, Jaffer FA, McCarthy JR. In Vivo Platelet Detection Using a Glycoprotein IIb/IIIa-Targeted Near-Infrared Fluorescence Imaging Probe. ACS Sens 2021; 6:2225-2232. [PMID: 34056903 DOI: 10.1021/acssensors.1c00124] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Platelets play a prominent role in multiple diseases, in particular arterial and venous thrombosis and also in atherosclerosis and cancer. To advance the in vivo study of the biological activity of this cell type from a basic experimental focus to a clinical focus, new translatable platelet-specific molecular imaging agents are required. Herein, we report the development of a near-infrared fluorescence probe based upon tirofiban, a clinically approved small-molecule glycoprotein IIb/IIIa inhibitor (GPIIb/IIIa). Through in vitro experiments with human platelets and in vivo ones in a murine model of deep-vein thrombosis, we demonstrate the avidity of the generated probe for activated platelets, with the added benefit of a short blood half-life, thereby enabling rapid in vivo visualization within the vasculature.
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Affiliation(s)
- Khanh Ha
- Masonic Medical Research Institute, Utica, New York 13501, United States
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Xiaoxin Zheng
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Chase W. Kessinger
- Masonic Medical Research Institute, Utica, New York 13501, United States
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Adam Mauskapf
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Wenzhu Li
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Yoichiro Kawamura
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Makoto Orii
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Scott A. Hilderbrand
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Farouc A. Jaffer
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Jason R. McCarthy
- Masonic Medical Research Institute, Utica, New York 13501, United States
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
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11
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Sung JH, Chang JH. Mechanically Rotating Intravascular Ultrasound (IVUS) Transducer: A Review. SENSORS (BASEL, SWITZERLAND) 2021; 21:3907. [PMID: 34198822 PMCID: PMC8201242 DOI: 10.3390/s21113907] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/31/2021] [Accepted: 06/03/2021] [Indexed: 12/30/2022]
Abstract
Intravascular ultrasound (IVUS) is a valuable imaging modality for the diagnosis of atherosclerosis. It provides useful clinical information, such as lumen size, vessel wall thickness, and plaque composition, by providing a cross-sectional vascular image. For several decades, IVUS has made remarkable progress in improving the accuracy of diagnosing cardiovascular disease that remains the leading cause of death globally. As the quality of IVUS images mainly depends on the performance of the IVUS transducer, various IVUS transducers have been developed. Therefore, in this review, recently developed mechanically rotating IVUS transducers, especially ones exploiting piezoelectric ceramics or single crystals, are discussed. In addition, this review addresses the history and technical challenges in the development of IVUS transducers and the prospects of next-generation IVUS transducers.
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Affiliation(s)
| | - Jin-Ho Chang
- Department of Information and Communication Engineering, Deagu Gyeongbuk Institute of Science and Technology, Daegu 42988, Korea;
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12
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Osborn EA, Albaghdadi M, Libby P, Jaffer FA. Molecular Imaging of Atherosclerosis. Mol Imaging 2021. [DOI: 10.1016/b978-0-12-816386-3.00086-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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13
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Jin H, Zheng Z, Liu S, Zheng Y. Evaluation of Reconstruction Methodology for Helical Scan Guided Photoacoustic Endoscopy. IEEE TRANSACTIONS ON MEDICAL IMAGING 2020; 39:4198-4208. [PMID: 32755852 DOI: 10.1109/tmi.2020.3014410] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Photoacoustic endoscopy (PAE), combining both advantages of optical contrast and acoustic resolution, can visualize the chemical-specific optical information of tissues inside human-body. Recently, its corresponding reconstruction methods have been extensively researched. However, most of them are limited on cylindrical scan trajectories, rather than a helical scan which is more clinically practical. On this note, this article proposes a methodology of imaging reconstruction and evaluation for helical scan guided PAE. Different from traditional reconstruction method, synthetic aperture focusing technique (SAFT), our method reconstructs image using wavefield extrapolation which significantly improves computational efficiency and even takes only 0.25 seconds for 3-D reconstructions. In addition, the proposed evaluation methodology can estimate the resolutions and deviations of reconstructed images in advance, and then can be used to optimize the PAE scan parameters. Groups of simulations as well as ex-vivo experiments with different scan parameters are provided to fully demonstrate the performance of the proposed techniques. The quantitatively measured angular resolutions and deviations agree well with our theoretical derivation results D√{rs2 +h2} / [1.25(rs rd +h2)] (rad) and -h l / (rs rd +h2) (rad), respectively D,rd, rs,h and l represent transducer diameter, radius of scan trajectory, radius of source position, unit helical pitch and the distance from targets to helical scan plane, respectively). This theoretical result also suits for circular and cylindrical scan in case of h = 0 .
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14
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Khraishah H, Jaffer FA. Intravascular Molecular Imaging: Near-Infrared Fluorescence as a New Frontier. Front Cardiovasc Med 2020; 7:587100. [PMID: 33330648 PMCID: PMC7719823 DOI: 10.3389/fcvm.2020.587100] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 10/30/2020] [Indexed: 11/13/2022] Open
Abstract
Despite exciting advances in structural intravascular imaging [intravascular ultrasound (IVUS) and optical coherence tomography (OCT)] that have enabled partial assessment of atheroma burden and high-risk features associated with acute coronary syndromes, structural-based imaging modalities alone do not comprehensively phenotype the complex pathobiology of atherosclerosis. Near-infrared fluorescence (NIRF) is an emerging molecular intravascular imaging modality that allows for in vivo visualization of pathobiological and cellular processes at atheroma plaque level, including inflammation, oxidative stress, and abnormal endothelial permeability. Established intravascular NIRF imaging targets include macrophages, cathepsin protease activity, oxidized low-density lipoprotein and abnormal endothelial permeability. Structural and molecular intravascular imaging provide complementary information about plaque microstructure and biology. For this reason, integrated hybrid catheters that combine NIRF-IVUS or NIRF-OCT have been developed to allow co-registration of morphological and molecular processes with a single pullback, as performed for standalone IVUS or OCT. NIRF imaging is approaching application in clinical practice. This will be accelerated by the use of FDA-approved indocyanine green (ICG), which illuminates lipid- and macrophage-rich zones of permeable atheroma. The ability to comprehensively phenotype coronary pathobiology in patients will enable a deeper understanding of plaque pathobiology, improve local and patient-based risk prediction, and usher in a new era of personalized therapy.
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Affiliation(s)
- Haitham Khraishah
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, United States.,Division of Cardiology, Cardiovascular Research Center and Harvard Medical School, Massachusetts General Hospital, Boston, MA, United States
| | - Farouc A Jaffer
- Division of Cardiology, Cardiovascular Research Center and Harvard Medical School, Massachusetts General Hospital, Boston, MA, United States.,Wellman Center for Photomedicine and Harvard Medical School, Massachusetts General Hospital, Boston, MA, United States
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15
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Xie Z, Shu C, Yang D, Chen H, Chen C, Dai G, Lam KH, Zhang J, Wang X, Sheng Z, Gao D, Liu C, Song L, Gong X. In vivo intravascular photoacoustic imaging at a high speed of 100 frames per second. BIOMEDICAL OPTICS EXPRESS 2020; 11:6721-6731. [PMID: 33282520 PMCID: PMC7687943 DOI: 10.1364/boe.405792] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 09/21/2020] [Accepted: 10/03/2020] [Indexed: 05/02/2023]
Abstract
Intravascular photoacoustic (IVPA) imaging technology enables the visualization of pathological characteristics (such as inflammation activities, lipid deposition) of the artery wall. Blood flushing is a necessary step in improving the imaging quality in in vivo IVPA imaging. But the limited imaging speed of the systems stretches their flushing time, which is an important obstacle of their clinical translations. In this paper, we report an improvement in IVPA/IVUS imaging speed to 100 frames per second. The high-speed imaging is demonstrated in rabbit in vivo, visualizing the nanoparticles accumulated on abdominal aorta wall at the wavelength of 1064 nm, in real time display. Blood flushing in vivo improves the IVPA signal-noise-ratio by around 3.5 dB. This study offers a stable, efficient and easy-to-use tool for instantaneous disease visualization and disease diagnosis in research and forwards IVPA/IVUS imaging technology towards clinical translations.
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Affiliation(s)
- Zhihua Xie
- Research Laboratory for Biomedical Optics and Molecular imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- Research Laboratory for Biomedical Optics and Molecular Imaging, Shenzhen Key Laboratory for Molecular Imaging, Guangdong Provincial Key Laboratory of Biomedical Optical Imaging Technology, CAS Key Laboratory of Health Informatics, Shenzhen Institutes of Advanced Technology, Shenzhen 518055, China
- Equal contribution
| | - Chengyou Shu
- Research Laboratory for Biomedical Optics and Molecular imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- Research Laboratory for Biomedical Optics and Molecular Imaging, Shenzhen Key Laboratory for Molecular Imaging, Guangdong Provincial Key Laboratory of Biomedical Optical Imaging Technology, CAS Key Laboratory of Health Informatics, Shenzhen Institutes of Advanced Technology, Shenzhen 518055, China
- Equal contribution
| | - Daya Yang
- Department of Cardiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
- Key Laboratory of Assisted Circulation, National Health Commission, Sun Yat-sen University, Guangzhou 510080, China
- Equal contribution
| | - Hao Chen
- Research Laboratory for Biomedical Optics and Molecular imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Chaobin Chen
- Research Laboratory for Biomedical Optics and Molecular imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Gang Dai
- Department of Cardiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
- Key Laboratory of Assisted Circulation, National Health Commission, Sun Yat-sen University, Guangzhou 510080, China
| | - Kwok Ho Lam
- Department of Electrical Engineering, The Hong Kong Polytechnic University, Hunghom, Hong Kong
| | - Jinke Zhang
- Research Laboratory for Biomedical Optics and Molecular imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- Research Laboratory for Biomedical Optics and Molecular Imaging, Shenzhen Key Laboratory for Molecular Imaging, Guangdong Provincial Key Laboratory of Biomedical Optical Imaging Technology, CAS Key Laboratory of Health Informatics, Shenzhen Institutes of Advanced Technology, Shenzhen 518055, China
| | - Xiatian Wang
- Research Laboratory for Biomedical Optics and Molecular imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Zonghai Sheng
- Research Laboratory for Biomedical Optics and Molecular imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- Research Laboratory for Biomedical Optics and Molecular Imaging, Shenzhen Key Laboratory for Molecular Imaging, Guangdong Provincial Key Laboratory of Biomedical Optical Imaging Technology, CAS Key Laboratory of Health Informatics, Shenzhen Institutes of Advanced Technology, Shenzhen 518055, China
| | - Duyang Gao
- Research Laboratory for Biomedical Optics and Molecular imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- Research Laboratory for Biomedical Optics and Molecular Imaging, Shenzhen Key Laboratory for Molecular Imaging, Guangdong Provincial Key Laboratory of Biomedical Optical Imaging Technology, CAS Key Laboratory of Health Informatics, Shenzhen Institutes of Advanced Technology, Shenzhen 518055, China
| | - Chengbo Liu
- Research Laboratory for Biomedical Optics and Molecular imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- Research Laboratory for Biomedical Optics and Molecular Imaging, Shenzhen Key Laboratory for Molecular Imaging, Guangdong Provincial Key Laboratory of Biomedical Optical Imaging Technology, CAS Key Laboratory of Health Informatics, Shenzhen Institutes of Advanced Technology, Shenzhen 518055, China
| | - Liang Song
- Research Laboratory for Biomedical Optics and Molecular imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- Research Laboratory for Biomedical Optics and Molecular Imaging, Shenzhen Key Laboratory for Molecular Imaging, Guangdong Provincial Key Laboratory of Biomedical Optical Imaging Technology, CAS Key Laboratory of Health Informatics, Shenzhen Institutes of Advanced Technology, Shenzhen 518055, China
| | - Xiaojing Gong
- Research Laboratory for Biomedical Optics and Molecular imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- Research Laboratory for Biomedical Optics and Molecular Imaging, Shenzhen Key Laboratory for Molecular Imaging, Guangdong Provincial Key Laboratory of Biomedical Optical Imaging Technology, CAS Key Laboratory of Health Informatics, Shenzhen Institutes of Advanced Technology, Shenzhen 518055, China
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16
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Chowdhury MM, Singh K, Albaghdadi MS, Khraishah H, Mauskapf A, Kessinger CW, Osborn EA, Kellnberger S, Piao Z, Lino Cardenas CL, Grau MS, Jaff MR, Rosenfield K, Libby P, Edelman ER, Lindsay ME, Tearney GJ, Jaffer FA. Paclitaxel Drug-Coated Balloon Angioplasty Suppresses Progression and Inflammation of Experimental Atherosclerosis in Rabbits. JACC Basic Transl Sci 2020; 5:685-695. [PMID: 32760856 PMCID: PMC7393431 DOI: 10.1016/j.jacbts.2020.04.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 04/13/2020] [Accepted: 04/13/2020] [Indexed: 12/31/2022]
Abstract
Paclitaxel drug-coated balloons (DCBs) reduce restenosis, but their overall safety has recently raised concerns. This study hypothesized that DCBs could lessen inflammation and reduce plaque progression. Using 25 rabbits with cholesterol feeding- and balloon injury-induced lesions, DCB-percutaneous transluminal angioplasty (PTA), plain PTA, or sham-PTA (balloon insertion without inflation) was investigated using serial intravascular near-infrared fluorescence-optical coherence tomography and serial intravascular ultrasound. In these experiments, DCB-PTA reduced inflammation and plaque burden in nonobstructive lesions compared with PTA or sham-PTA. These findings indicated the potential for DCBs to serve safely as regional anti-atherosclerosis therapy.
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Key Words
- 2D, 2-dimensional
- CSA, cross-sectional area
- DCB, drug-coated balloon
- EEM, external elastic membrane
- IVUS, intravascular ultrasound
- NIRF, near-infrared fluorescence
- OCT, optical coherence tomography
- PAD, peripheral arterial disease
- PAV, percent atheroma volume
- PB, plaque burden
- PTA, percutaneous transluminal angioplasty
- PTX, paclitaxel
- TAV, total atheroma volume
- atherosclerosis
- drug-coated balloon
- imaging
- inflammation
- peripheral arterial disease
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Affiliation(s)
- Mohammed M. Chowdhury
- Cardiovascular Research Center, Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
- Department of Vascular and Endovascular Surgery, Department of Surgery, Addenbrooke’s Hospital, University of Cambridge, Cambridge, United Kingdom
| | - Kanwarpal Singh
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Mazen S. Albaghdadi
- Cardiovascular Research Center, Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Haitham Khraishah
- Cardiovascular Research Center, Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
- Cardiovascular Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Adam Mauskapf
- Cardiovascular Research Center, Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Chase W. Kessinger
- Cardiovascular Research Center, Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Eric A. Osborn
- Cardiovascular Research Center, Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
- Cardiovascular Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Stephan Kellnberger
- Cardiovascular Research Center, Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Zhonglie Piao
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Christian L. Lino Cardenas
- Cardiovascular Research Center, Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Madeleine S. Grau
- Cardiovascular Research Center, Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Michael R. Jaff
- Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Kenneth Rosenfield
- Cardiovascular Research Center, Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Peter Libby
- Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
| | - Elazer R. Edelman
- Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Mark E. Lindsay
- Cardiovascular Research Center, Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Guillermo J. Tearney
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Farouc A. Jaffer
- Cardiovascular Research Center, Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
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17
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Lenz T, Nicol P, Castellanos MI, Engel LC, Lahmann AL, Alexiou C, Joner M. Small Dimension-Big Impact! Nanoparticle-Enhanced Non-Invasive and Intravascular Molecular Imaging of Atherosclerosis In Vivo. Molecules 2020; 25:E1029. [PMID: 32106607 PMCID: PMC7179220 DOI: 10.3390/molecules25051029] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 02/14/2020] [Accepted: 02/18/2020] [Indexed: 01/16/2023] Open
Abstract
Extensive translational research has provided considerable progress regarding the understanding of atherosclerosis pathophysiology over the last decades. In contrast, implementation of molecular in vivo imaging remains highly limited. In that context, nanoparticles represent a useful tool. Their variable shape and composition assure biocompatibility and stability within the environment of intended use, while the possibility of conjugating different ligands as well as contrast dyes enable targeting of moieties of interest on a molecular level and visualization throughout various imaging modalities. These characteristics have been exploited by a number of preclinical research approaches aimed at advancing understanding of vascular atherosclerotic disease, in order to improve identification of high-risk lesions prior to oftentimes fatal thromboembolic events. Furthermore, the combination of these targeted nanoparticles with therapeutic agents offers the potential of site-targeted drug delivery with minimized systemic secondary effects. This review gives an overview of different groups of targeted nanoparticles, designed for in vivo molecular imaging of atherosclerosis as well as an outlook on potential combined diagnostic and therapeutic applications.
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Affiliation(s)
- Tobias Lenz
- German Heart Centre Munich, Technical University of Munich, Lazarettstraße 36, 80636 Munich, Germany; (T.L.); (P.N.); (M.I.C.); (L.-C.E.); (A.L.L.)
| | - Philipp Nicol
- German Heart Centre Munich, Technical University of Munich, Lazarettstraße 36, 80636 Munich, Germany; (T.L.); (P.N.); (M.I.C.); (L.-C.E.); (A.L.L.)
- DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, 80802 Munich, Germany
| | - Maria Isabel Castellanos
- German Heart Centre Munich, Technical University of Munich, Lazarettstraße 36, 80636 Munich, Germany; (T.L.); (P.N.); (M.I.C.); (L.-C.E.); (A.L.L.)
- DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, 80802 Munich, Germany
| | - Leif-Christopher Engel
- German Heart Centre Munich, Technical University of Munich, Lazarettstraße 36, 80636 Munich, Germany; (T.L.); (P.N.); (M.I.C.); (L.-C.E.); (A.L.L.)
| | - Anna Lena Lahmann
- German Heart Centre Munich, Technical University of Munich, Lazarettstraße 36, 80636 Munich, Germany; (T.L.); (P.N.); (M.I.C.); (L.-C.E.); (A.L.L.)
| | - Christoph Alexiou
- Department of Oto-rhino-laryngology, head and neck surgery, Section of Experimental Oncology and Nanomedicine (SEON), Else Kröner-Fresenius-Stiftung-Professorship, University Hospital Erlangen, 91054 Erlangen, Germany;
| | - Michael Joner
- German Heart Centre Munich, Technical University of Munich, Lazarettstraße 36, 80636 Munich, Germany; (T.L.); (P.N.); (M.I.C.); (L.-C.E.); (A.L.L.)
- DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, 80802 Munich, Germany
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18
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Khraishah H, Jaffer FA. Intravascular Molecular Imaging to Detect High-Risk Vulnerable Plaques: Current Knowledge and Future Perspectives. CURRENT CARDIOVASCULAR IMAGING REPORTS 2020. [DOI: 10.1007/s12410-020-9527-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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19
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Zhang A, Jung K, Li A, Liu J, Boyer C. Recent advances in stimuli-responsive polymer systems for remotely controlled drug release. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2019.101164] [Citation(s) in RCA: 113] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Ramasamy A, Serruys PW, Jones DA, Johnson TW, Torii R, Madden SP, Amersey R, Krams R, Baumbach A, Mathur A, Bourantas CV. Reliable in vivo intravascular imaging plaque characterization: A challenge unmet. Am Heart J 2019; 218:20-31. [PMID: 31655414 DOI: 10.1016/j.ahj.2019.07.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 07/16/2019] [Indexed: 12/11/2022]
Abstract
Intravascular imaging has enabled in vivo assessment of coronary artery pathology and detection of plaque characteristics that are associated with increased vulnerability. Prospective invasive imaging studies of coronary atherosclerosis have demonstrated that invasive imaging modalities can detect lesions that are likely to progress and cause cardiovascular events and provided unique insights about atherosclerotic evolution. However, despite the undoubted value of the existing imaging techniques in clinical and research arenas, all the available modalities have significant limitations in assessing plaque characteristics when compared with histology. Hybrid/multimodality intravascular imaging appears able to overcome some of the limitations of standalone imaging; however, there are only few histology studies that examined their performance in evaluating plaque pathobiology. In this article, we review the evidence about the efficacy of standalone and multi-modality/hybrid intravascular imaging in assessing plaque morphology against histology, highlight the advantages and limitations of the existing imaging techniques and discuss the future potential of emerging imaging modalities in the study of atherosclerosis.
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Affiliation(s)
- Anantharaman Ramasamy
- Department of Cardiology, Barts Heart Centre, Barts Health NHS Trust, London, UK; School of Medicine and Dentistry, Queen Mary University London, London, UK
| | - Patrick W Serruys
- International Centre for Circulatory Health, NHLI, Imperial College London, London, UK
| | - Daniel A Jones
- Department of Cardiology, Barts Heart Centre, Barts Health NHS Trust, London, UK; School of Medicine and Dentistry, Queen Mary University London, London, UK
| | | | - Ryo Torii
- Department of Mechanical Engineering, University College London, UK
| | - Sean P Madden
- Infraredx Inc., Burlington, MA, United States of America
| | - Rajiv Amersey
- Department of Cardiology, Barts Heart Centre, Barts Health NHS Trust, London, UK
| | - Rob Krams
- School of Engineering and Materials Science, Queen Mary University London, London, UK
| | - Andreas Baumbach
- Department of Cardiology, Barts Heart Centre, Barts Health NHS Trust, London, UK; School of Medicine and Dentistry, Queen Mary University London, London, UK
| | - Anthony Mathur
- Department of Cardiology, Barts Heart Centre, Barts Health NHS Trust, London, UK; School of Medicine and Dentistry, Queen Mary University London, London, UK
| | - Christos V Bourantas
- Department of Cardiology, Barts Heart Centre, Barts Health NHS Trust, London, UK; School of Medicine and Dentistry, Queen Mary University London, London, UK; Institute of Cardiovascular Sciences, University College London, London, UK.
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21
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Karlas A, Fasoula NA, Paul-Yuan K, Reber J, Kallmayer M, Bozhko D, Seeger M, Eckstein HH, Wildgruber M, Ntziachristos V. Cardiovascular optoacoustics: From mice to men - A review. PHOTOACOUSTICS 2019; 14:19-30. [PMID: 31024796 PMCID: PMC6476795 DOI: 10.1016/j.pacs.2019.03.001] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 03/18/2019] [Indexed: 05/04/2023]
Abstract
Imaging has become an indispensable tool in the research and clinical management of cardiovascular disease (CVD). An array of imaging technologies is considered for CVD diagnostics and therapeutic assessment, ranging from ultrasonography, X-ray computed tomography and magnetic resonance imaging to nuclear and optical imaging methods. Each method has different operational characteristics and assesses different aspects of CVD pathophysiology; nevertheless, more information is desirable for achieving a comprehensive view of the disease. Optoacoustic (photoacoustic) imaging is an emerging modality promising to offer novel information on CVD parameters by allowing high-resolution imaging of optical contrast several centimeters deep inside tissue. Implemented with illumination at several wavelengths, multi-spectral optoacoustic tomography (MSOT) in particular, is sensitive to oxygenated and deoxygenated hemoglobin, water and lipids allowing imaging of the vasculature, tissue oxygen saturation and metabolic or inflammatory parameters. Progress with fast-tuning lasers, parallel detection and advanced image reconstruction and data-processing algorithms have recently transformed optoacoustics from a laboratory tool to a promising modality for small animal and clinical imaging. We review progress with optoacoustic CVD imaging, highlight the research and diagnostic potential and current applications and discuss the advantages, limitations and possibilities for integration into clinical routine.
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Affiliation(s)
- Angelos Karlas
- Chair of Biological Imaging, TranslaTUM, Technical University of Munich, Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
- Clinic for Vascular and Endovascular Surgery, University Hospital rechts der Isar, Munich, Germany
- German Center for Cardiovascular Research (DZHK), partner site Munich Heart Alliance, Munich, Germany
| | - Nikolina-Alexia Fasoula
- Chair of Biological Imaging, TranslaTUM, Technical University of Munich, Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| | - Korbinian Paul-Yuan
- Chair of Biological Imaging, TranslaTUM, Technical University of Munich, Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| | - Josefine Reber
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| | - Michael Kallmayer
- Clinic for Vascular and Endovascular Surgery, University Hospital rechts der Isar, Munich, Germany
- German Center for Cardiovascular Research (DZHK), partner site Munich Heart Alliance, Munich, Germany
| | - Dmitry Bozhko
- Chair of Biological Imaging, TranslaTUM, Technical University of Munich, Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| | - Markus Seeger
- Chair of Biological Imaging, TranslaTUM, Technical University of Munich, Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| | - Hans-Henning Eckstein
- Clinic for Vascular and Endovascular Surgery, University Hospital rechts der Isar, Munich, Germany
- German Center for Cardiovascular Research (DZHK), partner site Munich Heart Alliance, Munich, Germany
| | - Moritz Wildgruber
- Institute for Diagnostic and Interventional Radiology, University Hospital rechts der Isar, Munich, Germany
- Institute for Clinical Radiology, University Hospital Muenster, Muenster, Germany
| | - Vasilis Ntziachristos
- Chair of Biological Imaging, TranslaTUM, Technical University of Munich, Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Cardiovascular Research (DZHK), partner site Munich Heart Alliance, Munich, Germany
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22
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Liu R, Tang J, Xu Y, Dai Z. Bioluminescence Imaging of Inflammation in Vivo Based on Bioluminescence and Fluorescence Resonance Energy Transfer Using Nanobubble Ultrasound Contrast Agent. ACS NANO 2019; 13:5124-5132. [PMID: 31059237 DOI: 10.1021/acsnano.8b08359] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Inflammation is an immunological response involved in various inflammatory disorders ranging from neurodegenerative diseases to cancers. Luminol has been reported to detect myeloperoxidase (MPO) activity in an inflamed area through a light-emitting reaction. However, this method is limited by low tissue penetration and poor spatial resolution. Here, we fabricated a nanobubble (NB) doped with two tandem lipophilic dyes, red-shifting luminol-emitted blue light to near-infrared region through a process integrating bioluminescence resonance energy transfer (BRET) and fluorescence resonance energy transfer (FRET). This BRET-FRET process caused a 24-fold increase in detectable luminescence emission over luminol alone in an inflammation model induced by lipopolysaccharide. In addition, the echogenicity of the BRET-FRET NBs also enables perfused tissue microvasculature to be delineated by contrast-enhanced ultrasound imaging with high spatial resolution. Compared with commercially available ultrasound contrast agent, the BRET-FRET NBs exhibited comparable contrast-enhancing capability but much smaller size and higher concentration. This bioluminescence/ultrasound dual-modal contrast agent was then successfully applied for imaging of an animal model of breast cancer. Furthermore, biosafety experiments revealed that multi-injection of luminol and NBs did not induce any observable abnormality. By integrating the advantages of bioluminescence imaging and ultrasound imaging, this BRET-FRET system may have the potential to address a critical need of inflammation imaging.
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Affiliation(s)
- Renfa Liu
- Department of Biomedical Engineering College of Engineering , Peking University , Beijing 100871 , China
| | - Jie Tang
- Department of Biomedical Engineering College of Engineering , Peking University , Beijing 100871 , China
| | - Yunxue Xu
- Department of Biomedical Engineering College of Engineering , Peking University , Beijing 100871 , China
| | - Zhifei Dai
- Department of Biomedical Engineering College of Engineering , Peking University , Beijing 100871 , China
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23
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Gorpas D, Koch M, Anastasopoulou M, Bozhko D, Klemm U, Nieberler M, Ntziachristos V. Multi-Parametric Standardization of Fluorescence Imaging Systems Based on a Composite Phantom. IEEE Trans Biomed Eng 2019; 67:185-192. [PMID: 30990172 DOI: 10.1109/tbme.2019.2910733] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
OBJECTIVE Fluorescence molecular imaging (FMI) has emerged as a promising tool for surgical guidance in oncology, with one of the few remaining challenges being the ability to offer quality control and data referencing. This paper investigates the use of a novel composite phantom to correct and benchmark FMI systems. METHODS This paper extends on previous work by describing a phantom design that can provide a more complete assessment of FMI systems through quantification of dynamic range and determination of spatial illumination patterns for both reflectance and fluorescence imaging. Various performance metrics are combined into a robust and descriptive "system benchmarking score," enabling not only the comprehensive comparison of different systems, but also for the first time, correction of the acquired data. RESULTS We show that systems developed for targeted fluorescence imaging can achieve benchmarking scores of up to 70%, while clinically available systems optimized for indocyanine green are limited to 50%, mostly due to greater leakage of ambient and excitation illumination and lower resolution. The image uniformity can also be approximated and employed for image flat-fielding, an important milestone toward data referencing. In addition, we demonstrate composite phantom use in assessing the performance of a surgical microscope and of a raster-scan imaging system. CONCLUSION Our results suggest that the new phantom has the potential to support high-fidelity FMI through benchmarking and image correction. SIGNIFICANCE Standardization of the FMI is a necessary process for establishing good imaging practices in clinical environments and for enabling high-fidelity imaging across patients and multi-center imaging studies.
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24
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Bertrand MJ, Abran M, Maafi F, Busseuil D, Merlet N, Mihalache-Avram T, Geoffroy P, Tardif PL, Abulrob A, Arbabi-Ghahroudi M, Ni F, Sirois M, L'Allier PL, Rhéaume É, Lesage F, Tardif JC. In Vivo Near-Infrared Fluorescence Imaging of Atherosclerosis Using Local Delivery of Novel Targeted Molecular Probes. Sci Rep 2019; 9:2670. [PMID: 30804367 PMCID: PMC6389905 DOI: 10.1038/s41598-019-38970-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 01/08/2019] [Indexed: 01/04/2023] Open
Abstract
This study aimed to evaluate the feasibility and accuracy of a technique for atherosclerosis imaging using local delivery of relatively small quantities (0.04-0.4 mg/kg) of labeled-specific imaging tracers targeting ICAM-1 and unpolymerized type I collagen or negative controls in 13 rabbits with atheroma induced by balloon injury in the abdominal aorta and a 12-week high-cholesterol diet. Immediately after local infusion, in vivo intravascular ultrasonography (IVUS)-NIRF imaging was performed at different time-points over a 40-minute period. The in vivo peak NIRF signal was significantly higher in the molecular tracer-injected rabbits than in the control-injected animals (P < 0.05). Ex vivo peak NIRF signal was significantly higher in the ICAM-1 probe-injected rabbits than in controls (P = 0.04), but not in the collagen probe-injected group (P = 0.29). NIRF signal discrimination following dual-probe delivery was also shown to be feasible in a single animal and thus offers the possibility of combining several distinct biological imaging agents in future studies. This innovative imaging strategy using in vivo local delivery of low concentrations of labeled molecular tracers followed by IVUS-NIRF catheter-based imaging holds potential for detection of vulnerable human coronary artery plaques.
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Affiliation(s)
- Marie-Jeanne Bertrand
- Montreal Heart Institute, 5000 Belanger street, Montreal, Quebec, H1T 1C8, Canada
- Department of medicine, Université de Montréal, 2900 Édouard-Montpetit, Montreal, Quebec, H3T 1J4, Canada
| | - Maxime Abran
- Montreal Heart Institute, 5000 Belanger street, Montreal, Quebec, H1T 1C8, Canada
- Département de Génie Électrique et Institut de Génie Biomédical, École Polytechnique de Montréal, 2900 Édouard-Montpetit, Montreal, Quebec, H3T 1J4, Canada
| | - Foued Maafi
- Montreal Heart Institute, 5000 Belanger street, Montreal, Quebec, H1T 1C8, Canada
| | - David Busseuil
- Montreal Heart Institute, 5000 Belanger street, Montreal, Quebec, H1T 1C8, Canada
| | - Nolwenn Merlet
- Montreal Heart Institute, 5000 Belanger street, Montreal, Quebec, H1T 1C8, Canada
| | | | - Pascale Geoffroy
- Montreal Heart Institute, 5000 Belanger street, Montreal, Quebec, H1T 1C8, Canada
| | - Pier-Luc Tardif
- Montreal Heart Institute, 5000 Belanger street, Montreal, Quebec, H1T 1C8, Canada
- Département de Génie Électrique et Institut de Génie Biomédical, École Polytechnique de Montréal, 2900 Édouard-Montpetit, Montreal, Quebec, H3T 1J4, Canada
| | - Abedelnasser Abulrob
- Department of Translational Biosciences, Human Health Therapeutics Research Centre, National Research Council of Canada, 1200 chemin de Montréal, Ottawa, Ontario, K1A 0R6, Canada
| | - Mehdi Arbabi-Ghahroudi
- Department of Translational Biosciences, Human Health Therapeutics Research Centre, National Research Council of Canada, 1200 chemin de Montréal, Ottawa, Ontario, K1A 0R6, Canada
| | - Feng Ni
- Department of Downstream Processing and Analytics, Human Health Therapeutics Research Centre, National Research Council of Canada, 6100 Royalmount Avenue, Montreal, Quebec, H4P 2R2, Canada
| | - Martin Sirois
- Montreal Heart Institute, 5000 Belanger street, Montreal, Quebec, H1T 1C8, Canada
| | - Philippe L L'Allier
- Montreal Heart Institute, 5000 Belanger street, Montreal, Quebec, H1T 1C8, Canada
- Department of medicine, Université de Montréal, 2900 Édouard-Montpetit, Montreal, Quebec, H3T 1J4, Canada
| | - Éric Rhéaume
- Montreal Heart Institute, 5000 Belanger street, Montreal, Quebec, H1T 1C8, Canada
- Department of medicine, Université de Montréal, 2900 Édouard-Montpetit, Montreal, Quebec, H3T 1J4, Canada
| | - Frédéric Lesage
- Montreal Heart Institute, 5000 Belanger street, Montreal, Quebec, H1T 1C8, Canada
- Département de Génie Électrique et Institut de Génie Biomédical, École Polytechnique de Montréal, 2900 Édouard-Montpetit, Montreal, Quebec, H3T 1J4, Canada
| | - Jean-Claude Tardif
- Montreal Heart Institute, 5000 Belanger street, Montreal, Quebec, H1T 1C8, Canada.
- Department of medicine, Université de Montréal, 2900 Édouard-Montpetit, Montreal, Quebec, H3T 1J4, Canada.
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25
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Bozhko D, Karlas A, Gorpas D, Ntziachristos V. Optoacoustic sensing of hematocrit to improve the accuracy of hybrid fluorescence-ultrasound intravascular imaging. JOURNAL OF BIOPHOTONICS 2018; 11:e201700255. [PMID: 29341467 DOI: 10.1002/jbio.201700255] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 01/12/2018] [Indexed: 06/07/2023]
Abstract
Hybrid intravascular fluorescence-ultrasound imaging is emerging for reading anatomical and biological information in vivo. By operating through blood, intravascular near-infrared fluorescence (NIRF) detection is affected by hemoglobin attenuation. Improved quantification has been demonstrated with methods that correct for the attenuation of the optical signal as it propagates through blood. These methods assume an attenuation coefficient for blood and measure the distance between detector and the vessel wall by observing the intravascular ultrasound images. Assumptions behind the attenuation employed in correction models may reduce the accuracy of these methods. Herein, we explore a novel approach to dynamically estimate optical absorption by using optoacoustic (photoacoustic) measurements. Adaptive correction is based on a trimodal intravascular catheter that integrates fluorescence, ultrasound and optoacoustic measurements. Using the novel catheter, we show how optoacoustic measurements can determine variations of blood absorption, leading to accurate quantification of the detected NIRF signals at different hematocrit values.
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Affiliation(s)
- Dmitry Bozhko
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
- Chair of Biological Imaging, Technische Universität München, Munich, Germany
| | - Angelos Karlas
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
- Chair of Biological Imaging, Technische Universität München, Munich, Germany
| | - Dimitris Gorpas
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
- Chair of Biological Imaging, Technische Universität München, Munich, Germany
| | - Vasilis Ntziachristos
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
- Chair of Biological Imaging, Technische Universität München, Munich, Germany
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Osborn EA, Kessinger CW, Tawakol A, Jaffer FA. Metabolic and Molecular Imaging of Atherosclerosis and Venous Thromboembolism. J Nucl Med 2017; 58:871-877. [PMID: 28450558 DOI: 10.2967/jnumed.116.182873] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 04/19/2017] [Indexed: 12/27/2022] Open
Abstract
Metabolic and molecular imaging continues to advance our understanding of vascular disease pathophysiology. At present, 18F-FDG PET imaging is the most widely used clinical tool for metabolic and molecular imaging of atherosclerosis. However, novel nuclear tracers and intravascular optical near-infrared fluorescence imaging catheters are emerging to assess new biologic targets in vivo and in coronary arteries. This review highlights current metabolic and molecular imaging clinical and near-clinical applications within atherosclerosis and venous thromboembolism, and explores the potential for metabolic and molecular imaging to affect patient-level risk prediction and disease treatment.
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Affiliation(s)
- Eric A Osborn
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts; and.,Cardiology Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Chase W Kessinger
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts; and
| | - Ahmed Tawakol
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts; and
| | - Farouc A Jaffer
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts; and
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