Variations in the Branching Pattern of Segmental Renal Arteries on 64 Slice MDCT
Journal Title: Journal of Medical Science And clinical Research - Year 2017, Vol 5, Issue 6
Abstract
Introduction: Segmental arteries supplying the five vascular segments of the kidney are end arteries. Selective ligation of these arteries allows partial nephrectomy with minimal risk of injury to the remnant tissue. There exists great variability in the branching pattern of the renal artery. The aim of the present study was to illustrate these branching patterns and their frequency. Material and Methods: This study was done on one hundred patients (86 males and age group 18-80 years) on whom aortofemoropopliteal or aortic MDCT angiography was done for various indications like peripheral vascular disease, aortic aneurysm, aortic stenosis, mesenteric ischaemia etc. and the branching pattern of the 200 renal arteries was studied. The data was statistically analysed using SPSS software. Result: The division of main renal artery into anterior and posterior division was hilar in 75% and prehilar (early branching) in 25% of kidneys. The posterior division was constant and continued as posterior segmental artery. The anterior division showed variable pattern which was classified into 9 types. Type VII (19.02%) followed by type VIII (16.56%) and type IV (16.56%) were most frequent. The anterior division either directly divides into segmental arteries or first it divides to form presegmental and then segmental arteries. Conclusion: Type VII did not correspond with any previously reported types. Any typical pattern of division could not be seen in the cases with accessory renal arteries. The number of vascular segments was four or five, but there was great variability in the branching pattern of anterior division of renal artery.
Authors and Affiliations
Dr Yogesh Diwan
Keywords
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