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Automated Measurement of Stent Strut Coverage in Intravascular Optical Coherence Tomography

Authors
 Chi Young Ahn  ;  Byeong Keuk Kim  ;  Myeong Ki Hong  ;  Yangsoo Jang  ;  Jung Heo  ;  Chulmin Joo  ;  Jin Keun Seo 
Citation
 JOURNAL OF THE KOREAN PHYSICAL SOCIETY, Vol.66(4) : 558-570, 2015 
Journal Title
 JOURNAL OF THE KOREAN PHYSICAL SOCIETY 
ISSN
 0374-4884 
Issue Date
2015
Keywords
(100.6950) Tomographic image processing ; (110.4500) Optical coherence tomography
Abstract
Optical coherence tomography (OCT) is a non-invasive, cross-sectional imaging modality that has become a prominent imaging method in percutaneous intracoronary intervention. We present an automated detection algorithm for stent strut coordinates and coverage in OCT images. The algorithm for stent strut detection is composed of a coordinate transformation from the polar to the Cartesian domains and application of second derivative operators in the radial and the circumferential directions. Local region-based active contouring was employed to detect lumen boundaries. We applied the method to the OCT pullback images acquired from human patients in vivo to quantitatively measure stent strut coverage. The validation studies against manual expert assessments demonstrated high Pearson’s coefficients (R = 0.99) in terms of the stent strut coordinates, with no significant bias. An averaged Hausdorff distance of < 120 μm was obtained for vessel border detection. Quantitative comparison in stent strut to vessel wall distance found a bias of < 12.3 μm and a 95% confidence of < 110 μm.
Full Text
http://link.springer.com/article/10.3938/jkps.66.558
DOI
10.3938/jkps.66.558
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Byeong Keuk(김병극) ORCID logo https://orcid.org/0000-0003-2493-066X
Jang, Yang Soo(장양수) ORCID logo https://orcid.org/0000-0002-2169-3112
Hong, Myeong Ki(홍명기) ORCID logo https://orcid.org/0000-0002-2090-2031
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/139575
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