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CT angiography for living kidney donors: accuracy, cause of misinterpretation and prevalence of variation

Cited 38 time in Web of Science Cited 43 time in Scopus

Chai, Jee Won; Lee, Whal; Yin, Yong Hu; Jae, Hwan Jun; Chung, Jin Wook; Kim, Hyeon Hoe; Park, Jae Hyung

Issue Date
Korean Radiological Society
Korean J Radiol 2008;9(4):333-339
Angiography/*methods/standardsKidney/*blood supply/radiographyRenal Artery/radiographyRenal Veins/radiographyRetrospective StudiesYoung AdultLiving DonorsTomography, X-Ray Computed/standards
OBJECTIVE: To determine the accuracy of the use of multi-detector row CT (MDCT) to predict vascular anatomy in living kidney donors and to reveal the prevalence of vascular variations in a Korean population. MATERIALS AND METHODS: A total of 153 living kidney donors that had undergone preoperative CT and nephrectomy, either with open or laparoscopic surgery, were selected retrospectively. The initial CT results were compared with the surgical findings and repeated review sessions of CT scans were performed to determine the causes of mismatches in discordant cases. RESULTS: The accuracy of CT angiography was 95% to predict the number of renal vessels. Four arteries and two veins were missed during the initial CT interpretation due to perception errors (for two arteries and two veins) and technical limitations (two arteries). The prevalence of multiple renal arteries and veins, early branching of a renal artery and late confluence of a renal vein were 31%, 5%, 12%, 17%, respectively. The circumaortic renal vein and the bilateral inferior vena cava were found in two cases each (1.3%). One case (0.7%) each of a retroaortic renal vein and a supradiaphragmatic originated renal artery were found. CONCLUSION: MDCT provides a reliable method to evaluate the vascular anatomy and variations of living kidney donors.
1229-6929 (Print)
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