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a comparative study of coronary angiography and optical coherence tomography findings in coronary artery disease patients with moderate stenosis
Pages: 228-234
Year: Issue:  3
Journal: China Medical Abstracts

Keyword:  optical coherence tomography coronary angiography coronary artery disease atherosclerosis moderate stenosis vulnerable plaque;
Abstract: Objective To compare coronary angiography(CAG) and optical coherence tomography(OCT) findings in stenosis and culprit lesion morphology assessment in coronary artery disease patients with moderate stenosis(50%~70%).Methods 23 CAD patients with moderate stenosis(50%~70%) were enrolled in the study.These patients then underwent OCT analysis.CAG and OCT stenosis results were compared for conformity.OCT images of the culprit lesions were analyzed for more details about the morphological characteristics of the plaques in relation with the clinical diagnosis.Results Evaluation of stenosis of coronary lesions by Quantitative Coronary Angiography(QCA) corresponds approximately with OCT analysis estimation:CAG stenosis was 57.26% ±5.05,whereas the same OCT stenosis analysis reached a value of 61.17%±11.36,(P=0.032).From OCT image analysis,the vulnerable plaque was detected more in the culprit lesions of patients with a clinical diagnosis of unstable angina,than in stable angina pectoris patients(61.5%vs10%;P=0.012).
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