title: The accuracy of interpretation of emergency abdominal CT in adult patients who present with non-traumatic abdominal pain: results of a UK national audit.
abstract: OBJECTIVE
  To evaluate major/minor discrepancy rates for provisional (initial) and addendum (supplementary senior review) emergency computed tomography (CT) reports in patients presenting with non-traumatic abdominal pain.
  
  
  METHODS
  Ethical approval for this type of study is not required in the UK. All radiology departments with an approved lead for audit registered with the Royal College of Radiologists were invited to participate in this retrospective audit. The first 50 consecutive patients (25 surgical, 25 non-surgical) who underwent emergency abdominal CT for non-traumatic abdominal pain in 2013 were included. Statistical analyses were performed to identify organisational and report/patient-related variables that might be associated with major discrepancy.
  
  
  RESULTS
  One hundred and nine (58%) of 188 departments supplied data to the study with a total of 4,931 patients (2,568 surgical, 2,363 non-surgical). The audit standard for provisional report major discrepancy was achieved for registrars (target <10%, achieved 4.6%), for on-site consultants (target <5%, achieved 3.1%) and consultant addendum (target <5%, achieved 2.9%). Off-site reporters failed to meet the standard target (<5%, achieved 8.7% overall and 12.7% in surgical patients). The standard for patients coming to harm was not met in the surgical group (target <1%, achieved 1.5%) and was narrowly missed overall (target <1%, achieved 1%).
  
  
  CONCLUSIONS
  This study should be used to provide impetus to improve aspects of out-of-hours CT reporting. Clear benefits of CT interpretation/review by on-site and more senior (consultant) radiologists have been demonstrated.
authors.affiliation: Department of Radiology, Eastbourne Hospital, Eastbourne, UK.
authors.forename: D C
authors.initials: DC
authors.lastname: Howlett
authors.affiliation: Department of Professional Practice, The Royal College of Radiologists, London, UK. Electronic address: karl_drinkwater@rcr.ac.uk.
authors.forename: K
authors.initials: K
authors.lastname: Drinkwater
authors.affiliation: Department of Medical Statistics, London School of Hygiene and Tropical Medicine, London, UK.
authors.forename: C
authors.initials: C
authors.lastname: Frost
authors.affiliation: Department of Radiology, Queen Alexandra Hospital, Portsmouth, UK.
authors.forename: A
authors.initials: A
authors.lastname: Higginson
authors.affiliation: Department of Radiology, Queen Alexandra Hospital, Portsmouth, UK.
authors.forename: C
authors.initials: C
authors.lastname: Ball
authors.affiliation: Department of Radiology, Royal Cornwall Hospital, Truro, UK.
authors.forename: G
authors.initials: G
authors.lastname: Maskell
mesh_terms: D000007:Abdominal Injuries / Q000175:diagnosis / Q000453:epidemiology; D015746:Abdominal Pain / Q000000981:diagnostic imaging* / Q000453:epidemiology*; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002983:Clinical Competence; D003951:Diagnostic Errors / Q000517:prevention & control / Q000706:statistics & numerical data*; D004632:Emergency Medical Services / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D008297:Male; D008485:Medical Audit; D008875:Middle Aged; D015588:Observer Variation; D015995:Prevalence; D011860:Radiography, Abdominal / Q000706:statistics & numerical data*; D015203:Reproducibility of Results; D012307:Risk Factors; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000706:statistics & numerical data*; D006113:United Kingdom / Q000453:epidemiology; D055815:Young Adult