论文部分内容阅读
目的探讨双源CT(dual-source CT,DSCT)冠状动脉检查对冠状动脉狭窄病变的诊断价值。方法对80例临床疑诊冠心病的患者行双源CT,利用多平面重建(MPR)、最大密度投影重组(MIP)及容积重组(VRT)技术显示冠状动脉,评价其冠状动脉成像。同时对其中15例患者行选择性冠脉造影检查(SCA),并与DSCT结果进行对比分析。结果 DSCT示80例患者有22例50支血管有不同程度狭窄。其中轻度狭窄27支,中度狭窄16支,重度狭窄6支,闭塞1支。20支冠状动脉进行SCA检查,对比显示DSCT诊断符合率90%(18/20),误诊10%(2/20)。结论双源CT冠状动脉成像技术对病变血管狭窄程度的评价(动脉腔径狭窄≥50%)具有一定应用价值,可以作为一种常规筛查方法。
Objective To investigate the diagnostic value of dual-source CT (DSCT) coronary artery stenosis in patients with coronary artery stenosis. Methods Double-source CT was performed in 80 patients with clinically suspected coronary artery disease. Coronary arteries were visualized by multiplanar reconstruction (MPR), maximum density projection reconstruction (MIP) and volumetric VRT (VRV). Fifteen patients underwent selective coronary angiography (SCA) at the same time, and compared with DSCT results. Results DSCT showed 80 patients had 22 cases of 50 vessels with varying degrees of stenosis. There were 27 mild stenosis, 16 moderate stenosis, 6 severe stenosis and 1 occlusion. Twenty coronary arteries were examined by SCA. The comparisons showed that the coincidence rate of DSCT diagnosis was 90% (18/20) and 10% (2/20) were misdiagnosed. Conclusion Dual-source CT coronary angiography can be used as a routine screening method in assessing the degree of vascular stenosis (≥50% arterial stenosis).