Clinical Utility Of 16-slices CT In The Evaluation Of Coronary Artery Disease

Objective: To evaluate the diagnostic value of 16-detector row spiral CT in coronary artery diseases. Otherwise, trying to evaluate the quality of the plaques. Methods: The records of patients who were suspected to suffer from coronary artery diseases and underwent multi-slice spiral CT coronary angiography (MSCTCA) were collected. Plaques were detected in 113 patients and 55 patients underwent traditional selective coronary angiography (SCAG) after MSCTCA. The accuracy of MSCTCA in the diagnosis of coronary artery stenosis was analyzed by compared with the results of SCAG. Results: A total of 94.5% coronary artery segments could be evaluated. The sensitivity, specificity, and positive and negative predictive values of MSCTCA were 77. 3%, 94. 7%, 83. 9%, and 95. 3% in the diagnosis of moderate and severe coronary artery stenosis. Soft plaque is more prone to induce unstable angina pectoris (UAP) than calcified and mixed plaque(soft plaque 75% (15/20) mixed plaque 57.1% (16/28) Calcified plaque 13.8% (9/65)). Conclusion: 16-detector row spiral CT can be used to evaluate not only coronary stenosis but the quality of the plaque.