1 January 2010 Atherosclerotic tissue characterization in vivo by optical coherence tomography attenuation imaging
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≈Optical coherence tomography (OCT) is rapidly becoming the method of choice for assessing arterial wall pathology in vivo. Atherosclerotic plaques can be diagnosed with high accuracy, including measurement of the thickness of fibrous caps, enabling an assessment of the risk of rupture. While the OCT image presents morphological information in highly resolved detail, it relies on interpretation of the images by trained readers for the identification of vessel wall components and tissue type. We present a framework to enable systematic and automatic classification of atherosclerotic plaque constituents, based on the optical attenuation coefficient µt of the tissue. OCT images of 65 coronary artery segments in vitro, obtained from 14 vessels harvested at autopsy, are analyzed and correlated with histology. Vessel wall components can be distinguished based on their optical properties: necrotic core and macrophage infiltration exhibit strong attenuation, μt ≥10 mm-1, while calcific and fibrous tissue have a lower μt ≈ 2-5mm-1. The algorithm is successfully applied to OCT patient data, demonstrating that the analysis can be used in a clinical setting and assist diagnostics of vessel wall pathology.
© (2010) Society of Photo-Optical Instrumentation Engineers (SPIE)
Gijs van Soest, Gijs van Soest, Thadé P. M. Goderie, Thadé P. M. Goderie, Evelyn Regar, Evelyn Regar, Senada Koljenovic, Senada Koljenovic, Arno Geert J. L. H. van Leenders, Arno Geert J. L. H. van Leenders, Nieves Gonzalo, Nieves Gonzalo, Sander van Noorden, Sander van Noorden, Takayuki Okamura, Takayuki Okamura, Brett E. Bouma, Brett E. Bouma, Guillermo J. Tearney, Guillermo J. Tearney, Wolter Oosterhuis, Wolter Oosterhuis, Patrick W. Serruys, Patrick W. Serruys, Antonius F. W. van der Steen, Antonius F. W. van der Steen, } "Atherosclerotic tissue characterization in vivo by optical coherence tomography attenuation imaging," Journal of Biomedical Optics 15(1), 011105 (1 January 2010). https://doi.org/10.1117/1.3280271 . Submission:

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