title: Variations of renal artery in 820 patients using 64-detector CT-angiography.
abstract: OBJECTIVE
  Renal artery variations are important for clinical reasons. The aim of this study is to determine the originating level and variations of renal arteries with 64-channel multidetector computed tomography (MDCT).
  
  
  METHODS
  In a university hospital, 820 patients who underwent MDCT angiography of the abdominal aorta were retrospectively evaluated. The number, early division (ED), and originating level of renal artery were evaluated retrospectively. Variations of the renal artery on both sides, the difference between the genders with variations of the renal artery, were compared with chi-square test.
  
  
  RESULTS
  Renal artery originating from the level of L1-L2 intervertebral disc was found in 37.0% and 38.9% of patients on the right and left sides, respectively. Renal artery variations, including extrarenal artery (ERA), were found in 27% and ED in 26.7% of the patients. Significant differences were found in ED and ERA prevalence for genders (p = 0.006 and p = 0.043, respectively). The prevalence of both variations is higher in males.
  
  
  CONCLUSIONS
  An awareness of renal vascular variations is very important for both surgeons and radiologists. In this series, renal arterial variations were found in approximately one-fourth of the study population.
authors.affiliation: Department of Radiology, Medical School, Dicle University, Diyarbakir, Turkey. drhaticegumus@hotmail.com
authors.forename: Hatice
authors.initials: H
authors.lastname: Gümüş
authors.forename: Yaşar
authors.initials: Y
authors.lastname: Bükte
authors.forename: Erdal
authors.initials: E
authors.lastname: Ozdemir
authors.forename: Mehmet Güli
authors.initials: MG
authors.lastname: Cetinçakmak
authors.forename: Güven
authors.initials: G
authors.lastname: Tekbaş
authors.forename: Faysal
authors.initials: F
authors.lastname: Ekici
authors.forename: Hakan
authors.initials: H
authors.lastname: Onder
authors.forename: Aşur
authors.initials: A
authors.lastname: Uyar
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000714:Anastomosis, Surgical / Q000379:methods; D000792:Angiography / Q000379:methods*; D001012:Aorta, Abdominal / Q000000981:diagnostic imaging / Q000601:surgery; D002648:Child; D002675:Child, Preschool; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D016030:Kidney Transplantation / Q000379:methods; D008297:Male; D008875:Middle Aged; D061330:Multidetector Computed Tomography / Q000379:methods*; D009392:Nephrectomy; D012077:Renal Artery / Q000000981:diagnostic imaging* / Q000601:surgery; D015203:Reproducibility of Results; D012189:Retrospective Studies; D014019:Tissue Donors; D020858:Tissue and Organ Harvesting / Q000379:methods*; D014656:Vascular Surgical Procedures / Q000379:methods; D055815:Young Adult