title: CT scan and the pediatric trauma patient--are we overdoing it?
abstract: BACKGROUND
  Recent literature expresses concern for an increased risk of cancer in children exposed to low-dose radiation during computed tomography (CT). In response, children's hospitals have implemented the ALARA (as low as reasonably achievable) concept, but this is not true at most adult referring institutions. The purpose of this study was to assess the diagnostic necessity of CT in the evaluation of pediatric trauma patients.
  
  
  METHODS
  A retrospective review was conducted of the trauma database at a large, level I, freestanding children's hospital with specific attention to the pattern of CT evaluations.
  
  
  RESULTS
  From January 1999 to October 2003, 1,653 children with traumatic injuries were evaluated by the trauma team, with 1,422 patients undergoing 2,361 CT scans. Overall, 54% of obtained scans were interpreted as normal. Fifty percent of treated patients were transferred from referring hospitals. Approximately half arrived with previous CT scans with 9% of these requiring further imaging. Of the 897 patients that underwent abdominal CT imaging, only 2% were taken to the operating room for an exploratory laparotomy. In addition, of those patients who had abnormal findings on an abdominal CT scan, only 5% underwent surgical exploration.
  
  
  CONCLUSIONS
  CT scans are used with regularity in the initial evaluation of the pediatric trauma patient, and perhaps abdominal CT imaging is being used too frequently. A substantial number of these scans come from referral institutions that may not comply with ALARA. The purported risk of CT radiation questions whether a more selective approach to CT evaluation of the trauma patient should be considered.
authors.affiliation: Department of Pediatric Surgery, Primary Children's Medical Center, Salt Lake City, UT 84113, USA.
authors.forename: Stephen J
authors.initials: SJ
authors.lastname: Fenton
authors.forename: Kris W
authors.initials: KW
authors.lastname: Hansen
authors.forename: Rebecka L
authors.initials: RL
authors.lastname: Meyers
authors.forename: Daniel J
authors.initials: DJ
authors.lastname: Vargo
authors.forename: Keith S
authors.initials: KS
authors.lastname: White
authors.forename: Sean D
authors.initials: SD
authors.lastname: Firth
authors.forename: Eric R
authors.initials: ER
authors.lastname: Scaife
mesh_terms: D002648:Child; D006801:Humans; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed / Q000706:statistics & numerical data*; D014947:Wounds and Injuries / Q000000981:diagnostic imaging*