[摘要] 目的 测量正常人肠系膜上动脉(SMA)与腹主动脉(AO)夹角以及左肾静脉内径等正常值范围。 方法 利用多层螺旋CT血管成像技术测量35例正常检查者卧位状态下SMA与AO之间的角度和左肾静脉内径。 结果 35例正常人SMA与AO夹角A'的平均值为(37.80±10.55)°。左肾静脉穿过夹角处的前后径为(0.65±0.24)cm。左肾静脉下缘SMA与AO之间的距离为(1.79±0.79)cm。 结论 MSCTA能直观显示左肾静脉及其周围解剖结构的关系，同时能够精确测量SMA和AO之间的夹角和左肾静脉内径。SMA夹角A'和BMI、年龄之间存在显著直线正相关关系。左肾静脉穿过SMA夹角处的前后径和SMA夹角之间亦存在显著直线正相关关系。

    [关键词] 左肾静脉；CT血管造影

    [中图分类号] R816.7 [文献标识码] B [文章编号] 2095-0616(2015)11-150-04

    [Abstract] Objective To measure the angle between superior mesenteric artery(SMA)and inside diameter of left renal vein and so on in nomal cases. Methods The angle between SMA and AO and inside diameter of left renal vein were measured in 35 patients without abnormal CT findings in the supine position using multislice spiral CT (MSCT) scanner. Results The average angle between SMA and AO of 35 normal cases was (37.80±10.55)°. Anteroposterior diameter of left renal vein through the angle was (0.65±0.24)cm. At the level of inferior margin of left renal vein ......