Cited by 467Cardiac Imaging and DiagnosticsAtherosclerosis and Cardiovascular DiseasesAdvanced X-ray and CT Imaging

Noninvasive detection of macrophages using a nanoparticulate contrast agent for computed tomography

Hyafil, Fabien, Cornily, Jean-Christophe, Feig, Jonathan E, Gordon, Ronald, Vucic, Esad, Amirbekian, Vardan, Fisher, Edward A, Fuster, Valentin +2 more·2007·Nature Medicine

Abstract

Sudden fibrous cap disruption of 'high-risk' atherosclerotic plaques can trigger the formation of an occlusive thrombus in coronary arteries, causing acute coronary syndromes. High-risk atherosclerotic plaques are characterized by their specific cellular and biological content (in particular, a high density of macrophages), rather than by their impact on the vessel lumen. Early identification of high-risk plaques may be useful for preventing ischemic events. One major hurdle in detecting high-risk atherosclerotic plaques in coronary arteries is the lack of an imaging modality that allows for the identification of atherosclerotic plaque composition with high spatial and temporal resolutions. Here we show that macrophages in atherosclerotic plaques of rabbits can be detected with a clinical X-ray computed tomography (CT) scanner after the intravenous injection of a contrast agent formed of iodinated nanoparticles dispersed with surfactant. This contrast agent may become an important adjunct to the clinical evaluation of coronary arteries with CT.

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Crossref · 10.1038/nm1571

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36 of 36 references verified0 citation errors · 0 not checkable

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  • N1177 has been successfully tested in atherosclerotic animal model for detection of macrophage accumulation in arterial walls.

    “An iodinated aroyloxy ester, N1177, has been successfully tested in an atherosclerotic animal model for the detection of macrophage accumulation in arterial walls.151”
  • Hyafil et al. published the first example of CT-based molecular imaging using iodinated nanoparticles for detection of macrophages in a rabbit model, showing marked signal enhancement 2 hours after injection.

    “Hyafil et al.141 published the first example of CT-based molecular imaging using iodinated nanoparticles for the detection of macrophages in a rabbit model of atherosclerotic plaques, showing a marked signal enhancement 2 hours after injection of the iodinated nanoparticles (FIG. 5f).”

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Authors
Hyafil, F., Cornily, J.-C., Feig, J. E., Gordon, R., Vucic, E., Amirbekian, V., Fisher, E. A., Fuster, V., Feldman, L. J., & Fayad, Z. A.
Affiliations
  • Inserm (FR)
  • Icahn School of Medicine at Mount Sinai (US)
  • New York University (US)
  • Mount Sinai Hospital (US)
Corresponding author
Fayad, Zahi A
Venue
Nature Medicine
Published
2007-04-08
Volume
13
Issue
5
Pages
636-641
ISSN
  • 1078-8956 (ISSN-L)
  • 1546-170X
OpenAlex
W2065182922
Cited by
467
References
36
Citations by year
2026: 1 · 2025: 7 · 2024: 10 · 2023: 11 · 2022: 20 · 2021: 14 · 2020: 21 · 2019: 17 · 2018: 20 · 2017: 15 · 2016: 26 · 2015: 28 · 2014: 36 · 2013: 29 · 2012: 41
FWCI
31.60
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Medicine (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Fédération Française de Cardiologie
  • Centers for Disease Control and Prevention (R01 HK71021)
  • National Heart, Lung, and Blood Institute (R01HL078667, R01 HL 78667)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Cardiac Imaging and Diagnostics
  • Life Sciences › Immunology and Microbiology › Immunology › Atherosclerosis and Cardiovascular Diseases
  • Physical Sciences › Engineering › Biomedical Engineering › Advanced X-ray and CT Imaging
Keywords
surfactant-stabilized nanoparticles, coronary artery disease, acute coronary syndrome, fibrous cap rupture, non-invasive imaging, rabbit model
MeSH terms
Contrast Media, Coronary Vessels, Humans, Iodine, Kinetics, Macrophages, Microscopy, Electron, Tomography, X-Ray Computed, Atherosclerosis, Nanoparticles

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