title: [Evaluation of non-contrast-enhanced CT in blunt abdominal trauma].
abstract: We compared the findings of noncontrast-enhanced CT with those of contrast-enhanced CT in 126 patients with blunt abdominal trauma to evaluate the usefulness of noncontrast-enhanced CT. In 112 of the patients, visceral injuries were confirmed by surgery or clinical follow-up including CT. Although noncontrast-enhanced CT diagnosed all patients with 12 intestinal injuries requiring immediate surgery, contrast-enhanced CT missed two of these patients because high density hematomas on noncontrast-enhanced CT became isodense after IV administration of contrast material. However, contrast-enhanced CT was superior to noncontrast-enhanced CT in the diagnosis of hepatic and renal injuries. A case of renal artery occlusion was only visualized on contrast-enhanced CT. We conclude that both noncontrast- and contrast-enhanced CT should be performed for the CT evaluation of blunt abdominal trauma.
authors.affiliation: Department of Radiology, St. Marianna University School of Medicine.
authors.forename: K
authors.initials: K
authors.lastname: Miyakawa
authors.forename: T
authors.initials: T
authors.lastname: Kaji
authors.forename: H
authors.initials: H
authors.lastname: Ashida
authors.forename: M
authors.initials: M
authors.lastname: Kuwabara
authors.forename: K
authors.initials: K
authors.lastname: Ishizuka
authors.forename: M
authors.initials: M
authors.lastname: Wakabayashi
authors.forename: I
authors.initials: I
authors.lastname: Tani
authors.forename: T
authors.initials: T
authors.lastname: Ishikawa
mesh_terms: D000007:Abdominal Injuries / Q000000981:diagnostic imaging*; D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed / Q000379:methods*; D014949:Wounds, Nonpenetrating / Q000000981:diagnostic imaging*