多层螺旋CT血管造影在诊断小肠扭转中的价值

Multi-slice CT angiography in the diagnosis of small intestine volvulus in value

目的探讨多层螺旋CT血管造影(MSCTA)在诊断小肠扭转中的价值。方法搜集行全腹CT增强扫描且经手术证实的小肠扭转患者9例,采用容积再现(VR)血管生长技术(AV)行肠系膜上动脉(SMA)、肠系膜上静脉(SMV)成像,分析其在小肠扭转中的表现。结果 9例小肠扭转患者中,6例全组小肠扭转,AV重建显示SMA左侧的空肠动脉呈螺旋状或圆弧形向右侧旋转,分支远段位于右侧,SMV及分支与同名动脉伴行;3例部分性空肠扭转显示上端局部空肠动脉分支由SMA左侧呈圆弧形向右旋转,SMV及分支未能明显显示异常。小肠扭转诊断准确率100%(9/9)。结论 MSCTA能根据空、回肠动脉的走行、分布等,为快速、准确诊断小肠扭转提供依据。

Objective To discussion the value of multi-slice spiral CT angiography （MSCTA） in diagnosing small intestine volvulus.Methods To collect the whole line of enhanced abdominal CT scan and confirmed by surgery in patients with 9 cases of small intestine volvulus.Images reconstruction includes volume rendering（VR） and add vessel￡¨AV￡？,to show superior mesenteric artery（SMA） in arterial phase and superior mesenteric vein（SMV） in portal vein phase.Analysis of its performance in the diagnosis of small intestine volvulus.Results 9 cases of patients with small intestine volvulus,6 cases of the whole group of small volvulus.AV reconstruction shows the left side of the SMA jejunal artery spiral or arc to the right rotation, the distal branches of the right side, SMV ,and branch artery accompanied with the same name;three cases of partial volvulus air show local jejunal artery branch from the top of the left cylindrical arc clockwise SMA,SMV,and the branch failed to show clearly abnormal. Diagnostic accuracy of small intestine volvulus was 100%（9/9）. Conclusions MSCTA according to jejunal or ileal arteries of the course,distribution and so on,for fast,accurate and provide the basis for diagnosis of small intestine volvulus.