【摘要】 目的分析心肌梗死的多层螺旋CT(MSCT)表现,并探讨MSCT对心肌梗死的诊断价值。资料与方法33例心肌梗死患者进行MSCT冠状动脉成像,采用回顾性心电门控,行多平面重组(MPR)、曲面重组(CPR)、最大密度投影(MIP)等后处理。结果心肌梗死的主要CT征象为增强早期低密度区(24例)和冠状动脉严重狭窄或闭塞(29例),其他CT征象包括心室壁变薄、室壁瘤、心室内附壁血栓、心肌钙化、胸腔积液和心包积液等。心肌梗死和非心肌梗死区域的平均CT值分别为(57±9)HU和(139±12)HU。结论MSCT能同时发现心肌梗死和造成心肌梗死的冠状动脉严重狭窄或闭塞,可在心肌梗死的诊断中起重要作用。更多还原

【Abstract】 Objective To analyze the MSCT manifestations of myocardial infarction and evaluate its diagnostic value.Materials and Methods 33 patients of myocardial infarction were performed multi-slice spiral CT coronary angiography using MPR,CPR and MIP post-process methods.Results The main CT manifestations of myocardial infarction were regions of hypoenhancement in the early phase(24 cases) and coronary artery stenosis or occlusion(29 cases).The other manifestations of myocardial infarction detected by CT were ventricular wall thinning,ventricular aneurysm,ventricular thrombosis,myocardial calcification,pleura effusion and pericardial effusion.The mean CT density value of infarcted and noninfarcted areas was(57±9) HU and((139±12) HU,respectively.Conclusion MSCT can display myocardial infarctions and infarct-related coronary artery stenosis or occlusion,which plays an important role in the diagnosis of myocardial infarctions.更多还原