title: The role of computed tomography with contrast and small bowel follow-through in management of small bowel obstruction.
abstract: BACKGROUND
  In a significant percentage of patients, radiologic evaluation other than plain abdominal films are required to confirm or exclude the presence of small bowel obstruction.
  
  
  METHODS
  Over a 1-year period, 55 patients had both computed tomography and small bowel follow-through studies. Patients were classified as having (1) paralytic ileus, (2) low-grade obstruction, (3) high-grade obstruction, or (4) complete mechanical obstruction. The gold standard for diagnosis was celiotomy in 42 patients and clinical follow-up in 13 patients.
  
  
  RESULTS
  Thirty-six out of 42 patients had proven intestinal obstruction at the time of celiotomy. Computed tomography identified 32 out of the 36 high-grade and complete mechanical obstructions. Computed tomography was superior to small bowel follow-through in identifying masses, malignancies, and features of strangulation. Small bowel follow-through correctly identified "insignificant obstructions" when contrast reached the cecum within 4 hours in 18 of 19 patients.
  
  
  CONCLUSIONS
  In patients with equivocal findings of small bowel obstruction, computed tomography should be used initially and then small bowel follow-through if computed tomography is not diagnostic. Computed tomography was superior in this study for detecting the cause of the intestinal obstruction and presence of strangulation.
authors.affiliation: Department of Surgery, Oregon Health Science University, Portland, USA.
authors.forename: J J
authors.initials: JJ
authors.lastname: Peck
authors.forename: T
authors.initials: T
authors.lastname: Milleson
authors.forename: J
authors.initials: J
authors.lastname: Phelan
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007415:Intestinal Obstruction / Q000000981:diagnostic imaging* / Q000601:surgery; D007421:Intestine, Small / Q000473:pathology; D008297:Male; D008875:Middle Aged; D011860:Radiography, Abdominal; D014057:Tomography, X-Ray Computed