preoperative multi-detector computed tomography in kidney donors; quantitative data report from operation rooms

Background: multi-detector computed tomography (mdct) angiography is a non-invasive imaging modality, and is replacing the invasive conventional angiography in preoperative studies of vascular anatomy. objectives: to determine the accuracy of mdct in diagnosis of the renal arterial and venous anatomy, urinary collecting system and kidney anatomy itself in living kidney donors. patients and methods: in the present prospective single-center study, 134 potential kidney donors (age: 25.653.37 years) underwentmdctand mdctangiography in a single center (aug 2012 - oct 2013). the bolus tracking method was used. arterial and venous anatomical variations and kidney size were assessed and compared with the surgical findings. results: mdct angiography revealed renal arteries, their branching with 100% sensitivity, specificity, positive and negative predictive values. in addition, the sensitivity, specificity, positive predictive value and negative predictive value for mdct angiography were 85.71%, 100%, 100% and 99.14%, respectively, in diagnosis of venous branching pattern. there is direct linear correlation between mdct angiography and surgical findings in measuring arterial length and diameter, and kidney size (all p values < 0.001). only one patient had ureteral duplication. conclusion: mdct determines the renal vascular and urinary collecting system anatomy, and kidney characteristics with almost 100% accuracy in kidney donors.