Coronary artery stenosis: comparison study of CT angiography with 16-detector rows scanner and convention angiography
- VernacularTitle:16层螺旋CT冠状动脉血管成像和传统冠状动脉血管造影的对比研究
- Author:
Jianxing QIU
;
Guangjian TANG
;
Fusheng GAO
;
Jianxin LIU
;
Xuexiang JIANG
- Publication Type:Journal Article
- Keywords:
Tomography,X-ray computed;
Coronary angiography;
Coronary heart disease
- From:
Chinese Journal of Radiology
1999;0(10):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the accuracy of 16-detector row computed tomography coronary angiography in detection of hemodynamically relevant stenosis(≥50%) of the coronary artery. Methods Twenty-six patients undergoing both multi-detector row CT and conventional coronary angiography were included in this retrospective study. CT scan were obtained with collimation of 16 and rotation time of 500 ms. Retrospective electrocardiographic(ECG) gating was used for image reconstrution. The stenosis degree was detected with axial scanning and three-dimensional reformation. Results With the results of conventional coronary angiography as golden standard, the sensitivity, specificity, accuracy, positive predicted value and negative predicted value of the CT angiography in detection of hemodynamically relevant stenosis(≥50%) were 90.0%, 95.5%, 94.7%, 77.6%, and 98.2% respectively. Conclusion Sixteen-detector row computed tomography coronary angiography has high clinical value with evaluating hemodynamically relevant stenosis(≥50%) of coronary artery,and could be a significant guide for diagnosis and therapy of coronary heart disease.
