先天性肾异位和融合畸形的多层螺旋CT血管成像分析

发布时间：2018-10-29 10:02

【摘要】：目的:分析先天性肾异位和融合畸形在多层螺旋CT血管造影(MSCTA)中的表现。方法:搜集4例盆腔异位肾、4例交叉异位肾、8例马蹄肾的MSCTA资料,采用容积再现(VR)血管生长技术(AV)进行肾脏及血管重建,分析其影像学表现。结果:4例盆腔异位肾中,2例肾动脉起自腹主动脉下段、1例起自左侧髂总动脉经肾门进入肾脏,1例3支副肾动脉分别起自左侧髂总动脉,于侧后方和背侧进入肾脏,4例肾静脉发自肾门,汇入下腔静脉下段。4例交叉异位肾中,3例双肾下极、1例内侧缘融合,双侧肾动脉分别起自腹主动脉下段或同侧髂总动脉,3例双肾静脉分别汇入下腔静脉下段,1例双肾静脉汇合成1支主干后再汇入下腔静脉。8例马蹄肾中,6例双侧肾动脉开口位置低于正常,3例双肾副肾动脉、1例左肾2支副肾动脉(发生率50%),1例左肾2支副肾静脉、2例左肾静脉肾门外汇合变异(发生率37.5%)。结论:MSCTA能清楚显示先天性肾脏融合和异位的肾脏位置、形态及血管异常。
[Abstract]:Objective: to analyze the features of congenital renal ectopic and fusion malformations in multislice spiral CT angiography (MSCTA). Methods: the MSCTA data of 4 cases of pelvic heterotopic kidney, 4 cases of cross heterotopic kidney and 8 cases of horseshoe kidney were collected. The renal and vascular reconstruction were performed by volume rendering (VR) angiogenesis technique (AV), and the imaging findings were analyzed. Results: in 4 cases of pelvic ectopic kidney, 2 cases of renal artery started from the lower segment of abdominal aorta, 1 case from left common iliac artery into the kidney, 1 case from the left common iliac artery, 1 case from the posterior side and back side into the kidney. In 4 cases, the renal vein originated from the renal hilum and flowed into the lower segment of the inferior vena cava. In 4 cases, the inferior pole of the kidney was found in 3 cases, and the medial margin was fused in 1 case. The bilateral renal artery originated from the lower segment of the abdominal aorta or the ipsilateral common iliac artery, respectively. In 3 cases, the two renal veins were infused into the lower part of inferior vena cava, and in 1 case, one trunk was synthesized and then into the inferior vena cava. In 8 cases of horseshoe kidney, the position of the opening of bilateral renal artery was lower than normal in 6 cases, and the position of accessory renal artery was lower in 3 cases. One patient had two accessory renal arteries (50%), one patient had two accessory renal veins and two left renal veins (37.5%). Conclusion: MSCTA can clearly show the location, morphology and vascular abnormalities of congenital renal fusion and ectopic kidney.
【作者单位】：佛山市南海区第二人民医院/广东省人民医院南海医院医学影像科;
【分类号】：R692.1;R816.7

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