The role of multi-detector row CT in evaluation or living renal donors / 中华器官移植杂志

ABSTRACT

Objective To assess the role of muhi-detector row CT (MDCT) in preoperative evaluation of living renal donors. Methods The data of 104 potential donors who underwent MDCT were retrospectively analyzed. All the candidates underwent 64-MDCT examination. First,unenhanced scans were performed on the kidneys. After administration of Ⅳ contrast medium,enhanced CT images of the arterial phase, venous phase, and excretory phase were obtained. The enhanced scan scope was from the top of diaphragmatic muscle to pubic symphysis. The scanning data obtained was post-processed for reconstructed images. The anatomy and variations displayed in MDCT images on kidneys, ureters, arteries and veins were recorded. The findings in surgery constituted the standard of reference for imaging findings, and the recorded results from images were compared with the findings in surgery to assess the role of MDCT in evaluation of potential donors. Results MDCT examination was successfully performed on 104 candidates. Anomalies of kidneys and ureters were found in 8 donors before surgery. The prevalence of accessory arteries and early branching in image was 27. 2 % (28/103) and 12. 6 % (13/103) respectively. There were 3 candidates with double veins and 3 with retroaortie left renal vein found in preoperative assessment. Ninety-three candidates underwent successful donor nephreetomy. The anomalies and variations of kidneys and ureters in images were all confirmed surgically. The detection rate of the accessory renal artery (ARA) was 80 %. The ARAs measuring > 1 mm in diameter and early branching were all detected by MDCT.The findings of veins found in performed sides coincided with those of MDCT images. Conclusion MDCT can accurately assess the anatomic information and variations of the donors' kidneys, and facilitate triaging donors and planning operation proposal