Morphometric Analysis of Renal Artery with Multidetector Computed Tomography

ABSTRACT
Aim: Renal artery are the largest vessels originating from the abdominal aorta. Renal artery arising from the abdominal aorta to the right and left enter the kidney between the renal veins located anteriorly and the renal pelvis located posteriorly. It splits into two or more branches before it enters the kidney. In pelvis and ureter duplication, each renal segment usually has a separate feeding. As the renal artery enters the kidney, it divides into anterior and posterior branches. The posterior branch supplies the middle segment of the posterior face. The anterior branch feeds the upper and lower poles and the anterior surface. 
Materials and Method: Our study was carried out on 700 Multidetector Computerized Tomography images taken with the request of imaging for the abdominal region of individuals.178 cases suitable for our study were selected from these images.
Results: The diameter where the right renal artery from the abdominal aorta was 0.58 ± 0.12 mm, and the diameter where the left renal artery separates from the abdominal aorta was determined as 0.65 ± 0.13 mm. The root exit angle where the right renal was 117.52º ± 14.05º.While there was only one renal artery feeding the right and left kidneys in 164 of the patients who were measured, 14 (7.86%) patients had two renal artery feeding the kidney. Of these, 9 (5.05%) were in women and 5 (2.80%) were in men. Within the scope of the study, three or more extra renal artery were not found. In the measurements made, it was found that the renal artery branch exit levels were mostly concentrated at the L1 and L2 levels, parallel to the data in other studies. 72 (43.9%) at L2 level in right renal artery - 62 (37.8%) at L1 level and 30 (18.3%) at other levels, 89 (54.26%) at L2 level in left renal artery - It was determined that it was 51 (31.09%) at the L1 level and 24 (14.65%) at the other levels.
Conclusion:We think that our study with the findings we have obtained will constitute a clinical importance especially for surgeons in the region.

Key words: Renal artery, Multidetector computed tomography, Variation