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Proceedings Paper

Near-infrared hyperspectral imaging of atherosclerotic tissue phantom
Author(s): K. Ishii; R. Nagao; A. Kitayabu; K. Awazu
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Paper Abstract

A method to identify vulnerable plaques that are likely to cause acute coronary events has been required. The object of this study is identifying vulnerable plaques by hyperspectral imaging in near-infrared range (NIR-HSI) for an angioscopic application. In this study, NIR-HSI of atherosclerotic tissue phantoms was demonstrated under simulated angioscopic conditions. NIR-HSI system was constructed by a NIR super continuum light and a mercury-cadmium-telluride camera. Spectral absorbance values were obtained in the wavelength range from 1150 to 2400 nm at 10 nm intervals. The hyperspectral images were constructed with spectral angle mapper algorithm. As a result, detections of the lipid area in the atherosclerotic tissue phantom under angioscopic observation conditions were achieved especially in the wavelength around 1200 nm, which corresponds to the second overtone of CH stretching vibration mode.

Paper Details

Date Published: 18 June 2013
PDF: 4 pages
Proc. SPIE 8798, Clinical and Biomedical Spectroscopy and Imaging III, 87980Z (18 June 2013); doi: 10.1117/12.2033775
Show Author Affiliations
K. Ishii, Osaka Univ. (Japan)
R. Nagao, Osaka Univ. (Japan)
A. Kitayabu, Osaka Univ. (Japan)
K. Awazu, Osaka Univ. (Japan)

Published in SPIE Proceedings Vol. 8798:
Clinical and Biomedical Spectroscopy and Imaging III
Volker Deckert; Nirmala Ramanujam, Editor(s)

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