title: Urinary tract abnormalities: initial experience with multi-detector row CT urography.
abstract: OBJECTIVE
  To evaluate multi-detector row computed tomographic (CT) urography for detection of urinary tract abnormalities.
  
  
  METHODS
  Sixty-five patients referred from the urology service, in whom urinary tract abnormalities were strongly suspected, underwent multi-detector row CT urography. The technique included unenhanced, nephrographic, compression, and excretory-phase images through the abdomen and pelvis. Transverse images and three-dimensional reformations were reviewed by one of two radiologists. Findings were retrospectively compared with results of urinalysis, cystoscopy and/or ureteroscopy, and/or surgery.
  
  
  RESULTS
  Multi-detector row CT urography depicted many clinically diagnosed urinary tract abnormalities, including 15 of 16 uroepithelial malignancies, five congenital anomalies, five urinary tract calculi, and 18 calyceal and/or papillary, 30 renal pelvic and/or ureteral, and 25 bladder abnormalities. All abnormalities were detected on transverse images. These abnormalities included diffuse urothelial wall thickening in four patients (three of whom had transitional cell carcinoma), a renal abscess, a colovesical fistula, and incidentally detected extrarenal disease (a liver mass, hepatic metastases, lymph node metastases, an aortic dissection, and a pheochromocytoma; each of these findings was seen in one patient).
  
  
  CONCLUSIONS
  Multi-detector row CT urography is a useful method for detecting urinary tract abnormalities.
authors.affiliation: Department of Radiology, University of Michigan Medical Center, Ann Arbor, MI 48109-9723, USA. caoili@umich.edu
authors.forename: Elaine M
authors.initials: EM
authors.lastname: Caoili
authors.forename: Richard H
authors.initials: RH
authors.lastname: Cohan
authors.forename: Melvyn
authors.initials: M
authors.lastname: Korobkin
authors.forename: Joel F
authors.initials: JF
authors.lastname: Platt
authors.forename: Isaac R
authors.initials: IR
authors.lastname: Francis
authors.forename: Gary J
authors.initials: GJ
authors.lastname: Faerber
authors.forename: James E
authors.initials: JE
authors.lastname: Montie
authors.forename: James H
authors.initials: JH
authors.lastname: Ellis
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed; D014567:Urography / Q000379:methods; D014570:Urologic Diseases / Q000000981:diagnostic imaging*