title: A prospective evaluation of abdominal ultrasound in blunt trauma: is it useful?
abstract: OBJECTIVE
  The purpose of this study is to evaluate the utility and feasibility of abdominal ultrasound (US) in blunt trauma patients.
  
  
  METHODS
  This prospective study examined the operational issues and the diagnostic accuracy of US in selected blunt trauma patients triaged to a Level 1 trauma center.
  
  
  METHODS
  All patients were evaluated by an attending trauma surgeon and our usual criteria for objective evaluation of the abdomen were applied. US was performed by US technicians and interpreted by the trauma surgeon. We prospectively evaluated the availability (time to arrival), the ease with which the US could be integrated into the resuscitation (minutes to start after arrival), and the time required to perform the study. The US results were compared to diagnostic peritoneal lavage and computed tomography findings, clinical course, operative findings, and to repeat US examinations to determine sensitivity, specificity, and usefulness.
  
  
  RESULTS
  A total of 800 US studies were performed over 15 months. In four cases (0.5%), the US was incomplete for technical reasons. The results in the remaining 796 studies were as follows: [table: see text] The average time to arrival of the US was 17.3 minutes (range 0-120) and the average minutes to start after arrival was 7.0 (range 1-49). The average time required to perform the study was 10.6 minutes (range 2-26).
  
  
  CONCLUSIONS
  This study demonstrates that US can be obtained rapidly, integrated into the resuscitation, and completed quickly. US provides a highly accurate, noninvasive method to evaluate the abdomen in the blunt trauma patient, and has supplanted the previously used methods at this institution.
authors.affiliation: Division of Trauma, Department of Surgery, University of California-San Diego Medical Center 92103, USA.
authors.forename: M A
authors.initials: MA
authors.lastname: Healey
authors.forename: R K
authors.initials: RK
authors.lastname: Simons
authors.forename: R J
authors.initials: RJ
authors.lastname: Winchell
authors.forename: B B
authors.initials: BB
authors.lastname: Gosink
authors.forename: G
authors.initials: G
authors.lastname: Casola
authors.forename: J T
authors.initials: JT
authors.lastname: Steele
authors.forename: B M
authors.initials: BM
authors.lastname: Potenza
authors.forename: D B
authors.initials: DB
authors.lastname: Hoyt
mesh_terms: D000007:Abdominal Injuries / Q000175:diagnosis / Q000000981:diagnostic imaging*; D000328:Adult; D005069:Evaluation Studies as Topic; D006801:Humans; D008875:Middle Aged; D010533:Peritoneal Lavage; D011446:Prospective Studies; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed; D014193:Trauma Centers; D014463:Ultrasonography; D014949:Wounds, Nonpenetrating / Q000175:diagnosis / Q000000981:diagnostic imaging*