Evaluation of Coronary Stenosis and Plaque Stability by Multi-slice Spiral CT Angiography in Patients with Coronary Atherosclerotic Heart Disease

doi:10.7517/issn.1674-0475.191115

Abstract

Abstract: To investigate the detection efficiency of multi-slice spiral CT angiography (MSCTA) on coronary stenosis and plaque stability, 80 patients with coronary heart disease in our hospital from July 2018 to August 2019 were selected in this study. All patients were examined by angiography (CAG) and MSCTA. The results of CAG were used as control, the detection efficiency of coronary stenosis and plaques by MSCTA was calculated. The results show that the sensitivity, specificity and coincidence rate of MSCTA in detecting coronary stenosis were in good agreement with CAG (kappa=0.871, P=0.000). There was no significant difference in the detection rate of coronary artery stenosis, mild stenosis, moderate stenosis and severe stenosis between MSCTA and CAG (P>0.05). The main coronary plaques in patients with stable angina are calcified plaques, and the main coronary plaques in patients with unstable angina are soft plaques. MSCTA has a statistically significant difference in the detection rate of coronary plaque between patients with stable angina and unstable angina (P<0.05). Therefore, MSCTA has a high diagnostic efficiency for coronary stenosis. It can effectively evaluate the degree of coronary stenosis and plaque stability in patients with coronary heart disease, as well as provide reliable imaging basis for clinical treatment and prognosis evaluation.

Key words: coronary heart disease, multi-slice spiral CT angiography (MSCTA), degree of coronary stenosis, plaque stability

XU Weihua. Evaluation of Coronary Stenosis and Plaque Stability by Multi-slice Spiral CT Angiography in Patients with Coronary Atherosclerotic Heart Disease[J]. Imaging Science and Photochemistry, 2020, 38(3): 491-495.

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