GIÁ TRỊ CỦA CHỤP CẮT LỚP VI TÍNH 640 LÁT CẮT TRONG CHẨN ĐOÁN HẸP ĐỘNG MẠCH VÀNH TẠI BỆNH VIỆN ĐA KHOA HOÀ HẢO – MEDIC CẦN THƠ

Abstract

Background: A 640-slice coronary computed tomography angiography has been demonstrated to be a highly promising non-invasive diagnostic method for detecting coronary artery stenosis. In Vietnam, research in this field remains scarce. Objectives: The study aims to evaluate the diagnostic value of 640-slice computed tomography in coronary artery disease. Materials and methods: This is a descriptive cross - sectional study with an analytical component, conducted on 390 patients suspected of having coronary artery lesions. These patients sought consultation and treatment at Hoa Hao – Medic Can Tho General Hospital from July 2023 to October 2024. Results: The 640-slice computed tomography demonstrated near-perfect sensitivity, specificity, positive predictive value, negative predictive value, and accuracy, with an excellent kappa coefficient in diagnosing significant stenosis in the LM, LAD, LCx, and RCA branches, as well as at the segmental level of the coronary arteries. The Bland-Altman plot indicated a low level of discrepancy between the two methods in assessing significant stenosis of the LM branch. Conclusion: The 640-slice computed tomography exhibited high sensitivity, specificity, negative predictive value, positive predictive value, and accuracy in diagnosing significant coronary artery stenosis when evaluating coronary branches and segments