Evaluation of the left renal vein variations and inferior vena cava variations by means of helical computed tomography

PurposeTo evaluate the percentages of the left renal vein (LRV) variations and inferior vena cava (IVC) variations as well as the effect of gender on their frequencies.Materials and MethodsContrast-enhanced abdominal helical computed tomography (CT) examinations of 1204 patients were retrospectively evaluated.ResultsThe correspondent percentages of the total LRV variations, retroaortic left renal vein (RLRV), and circumaortic LRV were 5.2%, 3.1%, and 2.1%, respectively. A statistically significant correlation was found between RLRV variation and gender (P= .036).ConclusionsHelical CT is an efficient, fast, easily applicable, and reliable imaging modality in demonstration of LRV variations and IVC variations.