title: Trends in the use of CT and radiography in the evaluation of facial trauma, 1992-2002: implications for current costs.
abstract: OBJECTIVE
  CT has replaced conventional radiography of the face in many trauma centers. Concern exists that increased costs are associated with increased use of CT. Our goal was to compare the amount of CT and radiography performed for facial trauma at a level 1 trauma center in 1992 and in 2002 and to determine hospital costs for the imaging of these patients.
  
  
  METHODS
  The changes in volume and types of facial imaging examinations were determined comparing 1992 and 2002. Hospital costs of different imaging examinations were determined for 2002. Current costs of imaging facial trauma were compared with what 2002 costs would have been if the practice pattern in 1992 had continued.
  
  
  RESULTS
  In 1992, 890 patients were evaluated for facial trauma. Six hundred seventy-one had only radiography, 153 only CT of the face, and 66 both CT and radiography. In 2002, 828 patients were evaluated. Five hundred eighty-four patients had only CT of the face; 228, only radiography; and 16, both CT and radiography. The number of facial imaging examinations per patient in 1992 and 2002 was 1.23 and 1.03, respectively. The 2002 hospital cost of a facial CT examination was $121 and of a facial radiography series was $154. Using CT instead of radiography for evaluating facial injury resulted in an overall cost savings of 22% per patient in 2002.
  
  
  CONCLUSIONS
  The availability of CT has not resulted in increased use of facial imaging. The increased use of CT from 1992 to 2002 results in decreased current costs for the hospital.
authors.affiliation: Department of Radiology (FND 210), Massachusetts General Hospital, 32 Fruit St., PO Box 9657, Boston, MA 02114-2698, USA.
authors.forename: Brian G
authors.initials: BG
authors.lastname: Turner
authors.forename: James T
authors.initials: JT
authors.lastname: Rhea
authors.forename: James H
authors.initials: JH
authors.lastname: Thrall
authors.forename: Andrew B
authors.initials: AB
authors.lastname: Small
authors.forename: Robert A
authors.initials: RA
authors.lastname: Novelline
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D003365:Costs and Cost Analysis; D005151:Facial Injuries / Q000000981:diagnostic imaging* / Q000191:economics; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography / Q000191:economics / Q000706:statistics & numerical data; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed / Q000191:economics / Q000706:statistics & numerical data*