16 層螺旋CT 冠狀動脈血管成像和傳統
冠狀動脈血管造影的對比研究
邱建星 唐光健 高福生 劉建新 蔣學祥
【摘要】 目的 評估16 層螺旋CT 血管成像( CTA) 判斷冠狀動脈血液動力學相關性狹窄( ≥
50% ) 的價值。方法 對同時接受16 層CT 冠狀動脈成像和傳統冠狀動脈血管造影檢查的26 例患者
進行回顧性分析。掃描時采用16 排探測器, 機架轉速為2 周/ s, 使用后心電門控進行橫斷面影像重
建, 結合三維重建影像評估冠狀動脈狹窄程度。結果 以冠狀動脈血管造影為金標準, 冠狀動脈CTA
影像判斷血液動力學相關性冠狀動脈狹窄( ≥50%) 的敏感度為90. 0%, 特異度為95. 5% , 準確度為
94. 7% , 陽性預測值為77. 6% , 陰性預測值為98. 2% 。結論 16 層CTA 判斷冠狀動脈血液動力學相
關性狹窄( ≥50% ) 有較高的臨床診斷價值, 對臨床冠心病的診斷有較大指導意義。
【關鍵詞】 體層攝影術, X 線計算機; 冠狀動脈血管成像; 冠心病
Corona ry ar tery stenosis: compar ison st udy of CT angiogr aphy with 16-detector rows scanner and
convention angiogr aphy QIU J ia n-xing, TANG Guang-jian, GAO Fu-sheng, LIU J ia n-xin, J IANG
Xue-xiang. Department of Ra diology, Peking University First Hospital, Beijing 100034, China
【Abstra ct 】 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.
【Key wor ds】 Tomography, X-ray computed; Coronary angiography; Coronary heart disease

16 層螺旋CT 冠狀動脈血管成像和傳統.rar