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Abstract

INTRODUCTION: CT angiography is a feasible diagnostic and noninvasive exam in pre and postoperative kidney transplantation. This study aimed to evaluate the value of CT angiography in assessment of potential donor for kidney transplantation as regards anatomic evaluation and vascular mapping. METHOD: Totally 115 patients under went CT angiographic (GE Light speed QXI/4-row- detector scanner) who candidate for kidney donation, were retrospectively enrolled in this descriptive study at the Tooska medical imaging center between March 2007 and March 2009. The contrast enhanced scans were achieved using 1.25 mm collimation with a table feed of 7.5mm (Pitch of 1.5) from the level of diaphragm to iliac crest. RESULTS: We studied 115 patients (91male (79%) and 24 female (21%)) with mean age 30.12±10.27.The incidence of renal accessory artery in our patients was 38.2% (cranial 25%, caudal 16% and middle pole 3%).Also, renal accessory vein was detected in 12 patients (10.4%) (8 cases in Right, 1 case in left and 3 cases bilateral). Moreover, we identified early branching renal artery in 16.5% (10 cases less or equal to 10mm and 9 cases 10-20 mm to origin). In addition, 6.1% of cases showed late confluence renal vein, 3.5% retro or circumaortic renal vein, 0.9% renal stone, 3.5% decrease of renal function and 7.8% of cases revealed other abnormalies. CONCLUSION: Our findings showed CT angiography could be one of the most important exams in the preoperative evaluation of renal donor’s candidates. As well it is a reliable and accurate noninvasive evaluation for the revealing of renal artery and vein variations, as well as anatomic and pathologic details of kidneys. Keywords: CT Angiography, Kidney, Transplantation.