title: Comparison of CT angiography with MR angiography in the preoperative assessment of living kidney donors.
abstract: BACKGROUND
  The aim of the study was to prospectively compare the diagnostic performance of CT angiography (CTA) with MR angiography (MRA) in the preoperative assessment of living renal donors.
  
  
  METHODS
  Forty-eight potential living renal donors (mean 51 years, 29-67 years) underwent multislice CTA and gadolinium-enhanced MRA. Six potential donors were excluded. Forty-two donors underwent minimal invasive retroperitoneoscopic nephrectomy (left 36, right 6) and their datasets available for analysis independently performed by two blinded radiologists. The surgical status served as gold standard.
  
  
  RESULTS
  In 42 donors (84 kidneys), CTA identified 63 kidneys with 1 artery (MRI 61), 19 with 2 arteries (MRI 20), one with three arteries (MRI 2), and one with four arteries (MRI 1). Considering only the side with the surgical status available for verification, both CT and MRI correctly characterized 35 of 36 donors with a single renal artery and five of six with one supernumerary artery. Two false positives were two arteries suggested as supernumerary both in CT and MRI not confirmed during surgery. CTA and MRA both correctly identified three accessory renal veins in two donors.
  
  
  CONCLUSIONS
  CTA and MRA had the same accuracy for characterization of renal vasculature in the preoperative assessment of living renal donors.
authors.affiliation: Department of Diagnostic Radiology, University Hospital Basel, Basel, Switzerland. glueckert@uhbs.ch
authors.forename: Thomas M
authors.initials: TM
authors.lastname: Gluecker
authors.forename: Michael
authors.initials: M
authors.lastname: Mayr
authors.forename: Jochen
authors.initials: J
authors.lastname: Schwarz
authors.forename: Deniz
authors.initials: D
authors.lastname: Bilecen
authors.forename: Thomas
authors.initials: T
authors.lastname: Voegele
authors.forename: Juerg
authors.initials: J
authors.lastname: Steiger
authors.forename: Alexander
authors.initials: A
authors.lastname: Bachmann
authors.forename: Georg
authors.initials: G
authors.lastname: Bongartz
mesh_terms: D000328:Adult; D000368:Aged; D000792:Angiography / Q000379:methods*; D004305:Dose-Response Relationship, Drug; D005260:Female; D006801:Humans; D007668:Kidney / Q000098:blood supply* / Q000000981:diagnostic imaging*; D016030:Kidney Transplantation; D019520:Living Donors; D018810:Magnetic Resonance Angiography / Q000379:methods*; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D018579:Patient Selection; D011446:Prospective Studies; D012077:Renal Artery / Q000000981:diagnostic imaging; D012082:Renal Veins / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed / Q000379:methods*