Anatomy study of renal artery using MSCTA three-dimensional reconstruction technique and its clinical application

Objective:To study the anatomy and variation of renal artery using the multislice spiral CT angiography(MSCTA) three-dimensional reconstruction imaging technigue for providing the anatomical reference in renal surgery.Methods:The imaging data of 50 patients detected by renal artery MSCTA examination were retrospectively analyzed.The relationship between the origin position of renal artery and vertebral body was observed,the included angle between left and right renal artery with abdominal aorta was compared,and the renal artery variation was observed.Results:The 97% renal artery open located at 1/3 above the first lumbar vertebral body to 1/3 below the second lumbar vertebra.The diameter of the main renal artery complicated with the auxiliary renal artery was less than that of the single renal artery(P<0.01).The left side θ angle was larger than the right side θ angle(P<0.01).Among 50 cases,24(48%) cases with renal artery variation were identified,and the renal artery variation between left and right sides was similar.Among 32 cases with renal artery variation,23 cases were origin from abdominal aorta,and 9 cases were origin from renal artery.Conclusions:The anatomy of renal artery can be stereoscopically and intuitively observed by MSCTA,and the imaging findings can provide anatomic reference in related renal operation.