[Accuracy of 64-slice multi-detector row CT angiography in the diagnosis of coronary artery lesions].
OBJECTIVE
To determine the accuracy of 64-slice computed tomography angiography (CTA) in the diagnosis of coronary artery lesions.


METHODS
We retrospectively collected the coronary artery imaging data of 49 patients who underwent 64-slice CTA and conventional catheter-based selective coronary angiography (SCA) during July 2006 and May 2007. The CTA and SCA diagnosis were compared.


RESULTS
The 64-slice CTA enabled the visualization of the entire coronary tree with diagnostic image quality in 46 of the 49 patients. The CTA had a sensitivity of 54.88%, 47.50% and 93.15%, and a specificity of 99.42%, 95.68% and 97.13% for detecting less than 50% stenosis, 50%-75% stenosis, and greater than 75% stenosis, respectively. The overall Pearson's correlation coefficient between the degree of stenosis detected by quantitative SCA and 64-slice CTA was 0.941.


CONCLUSIONS
64-slice CTA is a good instrument for assessing coronary artery lesions.
Ma
En-sen
ES
Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China.
Yang
Zhi-gang
ZG
Zhang
Li
L
He
Yong
Y
Guo
Ying-kun
YK
Dong
Zhi-hui
ZH
D000328:Adult; D000368:Aged; D017023:Coronary Angiography / Q000379:methods*; D003324:Coronary Artery Disease / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000379:methods*