title: CT cystography versus conventional cystography in evaluation of bladder injury.
abstract: OBJECTIVE
  The objective of this study was to evaluate prospectively the use of CT cystography, using retrograde filling of the bladder with diluted iodinated contrast material, versus conventional cystography to identify bladder injury in patients with hematuria after blunt abdominal trauma.
  
  
  METHODS
  Inclusion criteria consisted of the adult hemodynamically stable abdominal trauma patient with hematuria referred for abdominopelvic CT and also being considered for cystography. An initial abdominopelvic CT scan using IV iodinated contrast material was obtained, as would have been done routinely in the trauma victim. A second CT scan through the pelvis was obtained after retrograde distention of the bladder with dilute iodinated contrast material. CT cystography revealing bladder injury was followed with appropriate therapy. CT cystograms not revealing injury were followed by conventional cystography. Results of patient outcome were evaluated.
  
  
  RESULTS
  Over a 21-month period from January 1995 through September 1996, CT cystography was performed on 55 patients who presented with hematuria after blunt abdominal trauma. Five of the 55 patients had bladder injury on CT cystography. The injury in each of these five patients was confirmed intraoperatively. In the remaining 50 patients, both CT and conventional cystography did not reveal bladder injury.
  
  
  CONCLUSIONS
  CT cystography is an accurate method for evaluating bladder injury in the blunt abdominal trauma victim with hematuria. CT cystography, performed in conjunction with routine CT of the abdomen and pelvis for evaluating traumatic hematuria, would therefore preclude conventional cystograms in these patients.
authors.affiliation: Department of Radiology, Los Angeles County-University of Southern California Medical Center, Los Angeles, CA 90033, USA.
authors.forename: M Y
authors.initials: MY
authors.lastname: Peng
authors.forename: Y R
authors.initials: YR
authors.lastname: Parisky
authors.forename: E E
authors.initials: EE
authors.lastname: Cornwell
authors.forename: R
authors.initials: R
authors.lastname: Radin
authors.forename: S
authors.initials: S
authors.lastname: Bragin
mesh_terms: D000007:Abdominal Injuries / Q000000981:diagnostic imaging*; D000293:Adolescent; D000328:Adult; D000368:Aged; D003287:Contrast Media; D005260:Female; D006417:Hematuria / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D012421:Rupture; D014057:Tomography, X-Ray Computed; D001743:Urinary Bladder / Q000000981:diagnostic imaging / Q000293:injuries*; D014949:Wounds, Nonpenetrating / Q000000981:diagnostic imaging*
chemical_list: D003287:Contrast Media