摘要
目的:评价16层螺旋CT在主动脉夹层诊断中的临床应用价值。材料与方法:对10例主动脉夹层患者行16层螺旋CT血管造影检查并进行二维和三维图像重建,重建方法包括多平面重建(MPR),曲面重建(CPR),表面遮盖成像(SSD),最大密度投影(MIP),容积再现(VR)。结果:DebakeyⅠ型3例,Ⅱ型2例,Ⅲ型5例。主动脉夹层的特异征象主要为分离移位内膜、真假腔的存在;非特异性征象为主动脉壁增厚钙化、主动脉不规则扩张、附壁血栓。MPR和CPR能较好地显示病变范围、大小及病变细节,而SSD、MIP和VR能良好显示管壁钙化情况和病变空间关系。结论:16层螺旋CT是一种准确、有效诊断主动脉夹层的检查方法。
Purpose： To evaluate 16 slices spiral CT in the diagnosis of aortic dissection （AD）. Materials and Methods： 10 cases with AD were performed by 16 slices spiral CT angiograply, all data were processed with 2D and 3D reconstructions, the main methods included： MPR, CPR, SSD, MIP and VR. Results： 3 Debakey type Ⅰ , 3 cases, type Ⅱ , 2 cases and type Ⅲ, 5 cases of aortic dissection wee found to show specific signs, i. e. intimal flaps and true and flase double aortic lumen. The non- specific signs included thieking and calcification of the aortic wall, irregular aortic dilation and intraluminal thrombus. MPR and CPR could clearly show tire extent, size and details of lesions. The space relationship and calcffation of aorta were displayed in SSD, MIP and VR, Conclusion： 16 slices spiral CT is an effective and non - invasive method in diagnosis , classification and locationof intimal rupture of AD.
出处
《现代医用影像学》
2007年第5期198-200,共3页
Modern Medical Imageology
