MSCTA在肾动脉瘤诊断中的应用价值

Multi-slice spiral CT angiography in diagnosis of renal artery aneurysms

目的分析肾动脉瘤(renal artery aneurysms,RAA)的多层螺旋CT血管成像(MSCTA)表现,探讨MSCTA在RAA诊断中的应用价值。方法回顾性分析18例RAA患者的MSCTA原始图像和后处理资料。结果 18例患者中,共检出RAA 27个:单发13例,单侧多发3例,双侧多发2例;瘤体的体积最大者约40mm×31mm×52mm,最小者约7mm×6mm×8mm,16个位于肾动脉主干分叉处,3个位于一级分支,8个位于二级及以下分支;9个瘤壁可见斑点状、条片状钙化,5个瘤腔内可见血栓形成,1例动脉瘤破裂伴有肾周及腹腔积血。结论 MSCTA结合后处理技术对RAA的诊断具有重要的诊断价值,可以作为RAA的首选影像学检查技术。

Objective To analyze the exibition of renal artery aneurysms （RAA） on multi-slice spiral CT angiography （ MSC- TA） , and to explore the value of MSCTA in diagnosing RAA. Methods The MSCTA data of 18 patients with RAA were analyzed retrospectively. Results Twenty-seven RAAs were detected in 18 patients. Thirteen patients had solitary RAA, and five had multiple RAAs, in which bilateral RAAs affected two patients. The largest RAA was 40 mm×31 mm×52mm, while the smallest was 7 mm×6 mm×8mm. Sixteen RAAs were located at the bifurcation of main renal artery, 3 in the primary branches, and 8 in the secondary or more distal branches. Obvious calcification was shown in nine aneurysms, visible thrombosis in five, and perinephric hematoma and hemoperitonemn due to aneurysm rupture was shown in one patient. Conclusion MSCTA combined with subsequent processing is valuable in diagnosis of RAA, and can be preferred in imaging examination.