摘要
目的进一步探讨多层螺旋CT血管成像(MSCTA)在腹主动脉瘤诊断中的应用价值。方法对12例腹主动脉瘤患者行MSCTA检查,采用多平面重组(MPR)、曲面重组(CMPR)、最大密度投影法(MIP)、容积显示(VRT)进行血管重建,对所显示的图像资料进行回顾性分析。结果MSCTA可清楚显示腹主动脉瘤的形态学特征及与周围组织器官的关系,12例腹主动脉瘤中有11例位于肾动脉平面下,瘤体长度4.9.16.7cm(平均9.1cm±2.2cm),呈囊状扩张5例、梭状扩张6例,瘤内附壁血栓9例,瘤壁不同程度增厚及钙化10例,髂总动脉受累3例,髂总动脉、腹腔干、肠系膜上动脉及双侧肾动脉近段不同程度狭窄各1例。结论MSCTA能清楚显示腹主动脉瘤瘤体、瘤壁及瘤腔附壁血栓等形态改变,明确临近组织器官、腹主动脉分支受累情况,对诊断及术前评估具有重要价值,为临床治疗提供循证依据。
Objective To evaluate the application value of multi-slice computed tomography angiography in the diagnosis of abdominal aortic aneurysm. Method Twelve patients were studied with MSCTA, reconstruction of the blood vessels with MPR, CMPR, MIP and VRT, then make a retrospective analysis of imaging that we got. Results The MSCTA can reveal clearly of the Morphological features of the abdominal aortic aneurysm and the relationships with the surrounding tissues and organs. 11 cases in 12 were located under the level of renal artery, sizes of the aneurysm were between 4.9-16.7cm (On average 9.1cm±2.2cm) . 5 cases were Cystic dilatation, 6 cases were Fusiform expansion in, 9 cases were Mural thrombus within aneurysm, 10 cases were wall thickening and calcification with different degree. Common iliac artery involvement in 3 patients. Each have a case of 1 patient with different degree of stenosis in Common iliac artery, celiac and superior mesenteric artery and bilateral renal artery. Conclusion MSCTA can clearly show the location , the wall and the thrombus of abdominal aortic aneurysm, and show the state of adjacent tissues, branch of the abdominal aorta. It can supply valuable information for clinical therapy before the operation.
