AIM To evaluate the diagnostic value of coronary computed tomography angiography (CTA) in coronary artery diseases and to compare the consistency between coronary CTA and coronary angiography.

METHODS Clinical data of 58 patients diagnosed with coronary heart diseases admitted to the Department of Radiology, 986 Hospital of Xijing Hospital, Air Force Medical University from 2018 to 2019 were collected. All patients underwent coronary CTA and coronary angiography and the results of the two examinations were compared to analyze the practical significance of coronary CTA in the detection of coronary artery diseases, as well as the detection and compliance rate of coronary CTA in determining the severity of coronary stenosis.

RESULTS There are a total of 58 patients, including 43 males and 15 females. The age is (64 ± 11) years old. There were 24 patients with diabetes, 27 patients with dyslipidemia, 37 patients with hypertension, 11 patients with drinking history, 34 patients with smoking history, and 6 patients with hereditary family history. The sensitivity of coronary artery CTA in the diagnosis of coronary heart disease was 97.9% (191/195), specificity was 73.0% (27/37), positive predictive value was 95.0% (191/201), and negative predictive value was 87.1% (27/31). Coronary artery CTA showed mild to moderate stenosis in 154 coronary arteries, and severe stenosis to occlusion in 78 coronary arteries. Coronary angiography showed that 139 coronary arteries had mild to moderate stenosis, and 93 coronary arteries had severe stenosis to occlusion, with no significant statistical difference. The results of coronary angiography showed that the stenosis lesions were located at 28 locations on the left main artery, 58 locations on the anterior descending branch, 53 locations on the circumflex branch, and 56 locations on the right coronary artery. The coronary artery CTA results showed that coronary artery stenosis lesions were located at 35 locations on the left main artery, 58 locations on the anterior descending branch, 52 locations on the circumflex branch, and 56 locations on the right coronary artery, with no statistical difference.

CONCLUSION Coronary CTA has practical application value in the early diagnosis of coronary artery diseases. It can accurately locate the lesion site and evaluate the degree of coronary artery stenosis.