Coronary CT angiography characteristics of OCT-defined thin-cap fibroatheroma: a section-to-section comparison study
- Authors
- Yang, Dong Hyun; Kang, Soo-Jin; Koo, Hyun Jung; Chang, Mineok; Kang, Joon-Won; Lim, Tae-Hwan; Baek, Seunghee; Han, Seungbong; Lee, Pil Hyung; Roh, Jae-Hyung; Ahn, Jung-Min; Park, Duk-Woo; Lee, Seung-Whan; Lee, Cheol Whan; Park, Seong-Wook; Park, Seung-Jung; Mintz, Gary S.; Kim, Young-Hak
- Issue Date
- Feb-2018
- Publisher
- SPRINGER
- Keywords
- Thin-cap fibroatheroma; Coronary computed tomography angiography; Optical coherence tomography; Vulnerable plaque; Diagnostic study
- Citation
- EUROPEAN RADIOLOGY, v.28, no.2, pp.833 - 843
- Journal Title
- EUROPEAN RADIOLOGY
- Volume
- 28
- Number
- 2
- Start Page
- 833
- End Page
- 843
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/4064
- DOI
- 10.1007/s00330-017-4992-8
- ISSN
- 0938-7994
- Abstract
- To evaluate whether plaque characteristics as assessed by coronary computed tomography angiography (CCTA) were associated with the presence of a thin-cap fibroatheroma (TCFA)-a precursor of plaque rupture-defined by optical coherence tomography (OCT) in a section-to-section-level comparison. From 28 symptomatic patients, 31 coronary lesions were evaluated on 727 cross-sections co-registered by both CCTA and OCT. CCTA plaque characteristics included low attenuation plaque (LAP, < 30 HU), napkin ring sign (NRS), positive remodelling (PR, remodelling index 1.10), and spotty calcification and plaque area and plaque burden. By OCT, presence of TCFA, lumen area and arc of lipid were determined. OCT revealed a TCFA in 69 (9.4%) sections from 19 (61.2 %) lesions. In per-section analysis, OCT-TCFA showed higher frequency of CCTA-detected LAP (58.0% vs. 18.5%), NRS (31.9% vs. 8.8%) and PR (68.1% vs. 48.0%) and greater plaque burden (70.6% vs. 61.9%) as compared to sections without OCT-TCFA (all p < 0.05). In multivariable analysis, LAP (odds ratio [OR] 4.05, p < 0.001) and NRS (OR 2.47, p = 0.005) were associated with OCT-TCFA. CCTA-measured lumen area correlated well with OCT-measured lumen area (R = 0.859, limits of agreement -0.5 +/- 3.7 mm(2)). LAP and NRS in CCTA were associated with the presence of OCT-defined TCFA in a section-to-section comparison.
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