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目的探讨主-髂动脉闭塞伴侧支血管形成的多层螺旋CT血管成像(MSCTA)表现。资料与方法分析9例主-髂动脉闭塞伴侧支血管形成的MSCTA表现。结果9例主-髂动脉完全性闭塞,CTA显示侧支血管主要通过以下三条通路吻合:下位肋间后动脉与旋髂深动脉吻合、腹壁上动脉与腹壁下动脉吻合以及肠系膜下动脉(IMA)远段通过迂曲扩张的Riolan动脉弓与肠系膜上动脉(SMA)形成吻合。结论MSCTA可显示主-髂动脉闭塞患者的主要侧支血管情况。
Objective To investigate the multi-slice spiral CT angiography (MSCTA) of occlusion of the main iliac artery with collateral vessels. Materials and Methods Nine cases of primary iliac artery occlusion with collateral vessels were analyzed by MSCTA. Results Nine patients had complete occlusion of the iliac arteries and iliac arteries. The CTA showed that the collateral vessels were anastomosed mainly by the following three paths: the inferior intercostal artery anastomosed with the deep iliac artery, the superior abdominal artery anastomosed with the inferior abdominal artery and the inferior mesenteric artery (IMA) The distal segment fits with the superior mesenteric artery (SMA) via the tortuous dilated Riolan arch. Conclusion MSCTA can show the major collateral vessels in patients with primary iliac artery occlusion.