title: Whole body imaging in blunt multisystem trauma patients without obvious signs of injury: results of a prospective study.
abstract: OBJECTIVE
  The use of liberal whole body imaging (pan scan) in patients based on mechanism is warranted, even in evaluable patients with no obvious signs of chest or abdominal injury.
  
  
  METHODS
  Prospective observational study.
  
  
  METHODS
  Academic level I trauma center.
  
  
  METHODS
  All patients admitted following blunt multisystem trauma.
  
  
  METHODS
  Pan scan, including computed tomography (CT) of the head, cervical spine, chest, abdomen, and pelvis, with the following inclusion criteria: (1) no visible evidence of chest or abdominal injury, (2) hemodynamically stable, (3) normal abdominal examination results in a neurologically intact patient or unevaluable abdominal examination results secondary to a depressed level of consciousness, and (4) significant mechanisms of injury. Radiological findings and changes in treatment based on these findings were recorded.
  
  
  METHODS
  Any alteration in the normal treatment plan as a direct result of CT scan findings. These alterations include early hospital discharge, admission for observation, operative intervention, and additional diagnostic studies or interventions.
  
  
  RESULTS
  One thousand patients underwent pan scan during the 18-month observation period, of which 592 were evaluable patients with no obvious signs of abdominal injury. Clinically significant abnormalities were found in 3.5% of head CT scans, 5.1% of cervical spine CT scans, 19.6% of chest CT scans, and 7.1% of abdominal CT scans. Overall treatment was changed in 18.9% of patients based on abnormal CT scan findings.
  
  
  CONCLUSIONS
  The use of pan scan based on mechanism in awake, evaluable patients is warranted. Clinically significant abnormalities are not uncommon, resulting in a change in treatment in nearly 19% of patients.
authors.affiliation: Division of Trauma and Critical Care, Department of Surgery, University of Southern California Keck School of Medicine and the Los Angeles County and University of Southern California Medical Center, Los Angeles 90033, USA. asalim@surgery.usc.edu
authors.forename: Ali
authors.initials: A
authors.lastname: Salim
authors.forename: Burapat
authors.initials: B
authors.lastname: Sangthong
authors.forename: Matthew
authors.initials: M
authors.lastname: Martin
authors.forename: Carlos
authors.initials: C
authors.lastname: Brown
authors.forename: David
authors.initials: D
authors.lastname: Plurad
authors.forename: Demetrios
authors.initials: D
authors.lastname: Demetriades
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D009104:Multiple Trauma / Q000000981:diagnostic imaging*; D011446:Prospective Studies; D015203:Reproducibility of Results; D014057:Tomography, X-Ray Computed; D015599:Trauma Severity Indices; D051598:Whole Body Imaging / Q000379:methods*; D014949:Wounds, Nonpenetrating / Q000000981:diagnostic imaging*