64层螺旋CT冠状动脉造影在冠心病中的应用价值

目的评价多层螺旋CT冠状动脉造影（MSCTA）在冠心病中的应用价值。方法对58例患者行64层MSCT冠状动脉造影检查,经肘前静脉注射对比剂,平静吸气后屏气进行扫描,采用回顾性心电门控技术,并将图像传送到工作站进行容积再现、多平面重建、曲面重建和最大密度投影进行图像后处理重建,对其中24例患者行选择性冠状动脉造影检查,分析MSCT图像质量,并与选择性冠状动脉造影相比较。结果58例64层MSCT冠状动脉造影均清楚显示冠脉各主支及其分支,38例患者的115支冠脉上见有粥样硬化斑块,并可显示斑块的类型和狭窄的程度。5例冠状动脉支架置入和1例冠状动脉搭桥术后均清楚显示支架和血管桥的位置及远端血流情况。结论64层MSCT是有效可靠冠心病诊断方法,是冠状动脉疾病筛选和诊断中很有潜力的非侵袭性检查方法。

The value of 64-slice spiral computed tomography (MSCT) coronary angiography in patients with coronary heart disease

OBJECTIVE: To assess the value of 64-slice spiral computed tomography (MSCT) coronary angiography in patients with coronary heart disease. METHODS: Fifty-eight patients were performed 64-slice spiral CT in coronary artery. Intravenously contrast enhanced 64-slice spiral computed tomography coronary angiography was achieved during a single breath hold, and ECG images were reconstructed retrospectively. All axial images were transferred to an external workstation. The reconstructed images were processed into volume rendering (VR) and multiplanner reconstruction (MPR) and curved planner reconstruction (CPR) and maximum intensity projection (MIP), 24 of the 58 patients underwent selective coronary artery angiography, the outcomes of the two kinds of examination were compared. RESULTS: The main branches and of the sub-branches of the coronary artery were clearly displayed. 115coronary artery branches of 38 patients were found conorany plaques, plaque morphology and stenosis extent could be clearly differentiated. In the segments with cononary stents and bypass graft, the position and distal blood flow were well showed. CONCLUSION: 64-slice MSCT coronary angiography is a reliable diagnostic method for coronary heart disease and promising technique for noninvasive screening and diagnosis of coronary artery disease.