| Objective: To evaluate the clinical values of 64-slice computed tomography angiography to coronary heart disease, taking the conventional coronary artery angiography as "the golden standard".Materials and Methods: Collect plenty of information about the selected 70 patients with 64-slice CTA, and comparing that with the results of CAG implemented in the recent two weeks, assess the different degree of coronary stenosis and pathological changes of different branches of coronary artery shown by 64-slice CTA.Results: In the 70 patients, 259 coronary arteries were evaluated with 107 lesions found by 64-slice CTA. Among the lesions, 101 were diagnosed with CAG; 6 lesions were falsely positive and 8 other lesions were made sure by CAG, which were not picked up by 64-slice CTA. The sensitivity, specificity, positive predict values and negative predict values were 92.7%, 96.5%, 94.4% and 95.4% respectively for the detection of the disease.Conclusions: 64-slice CTA has good sensitivity and specificity in detecting CAD, and it can also give fairly accurate assessment of stenosis severity in most patients compared to CAG. Therefore, it is a useful non-invasive method for detecting coronary arteries disease in patients who are suspected clinically. |
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