title: [Computed tomographic diagnosis of dissecting aneurysm of the aorta].
abstract: Twenty-four patients with dissecting aortic aneurysms have been examined by CT and possible causes of mistaken diagnosis are discussed. Failure to diagnose a dissection by CT may be due to atypical localisation and thrombosis of the aortic dissection; dissections of small volume, particularly in the ascending aorta; failure to demonstrate an intimal flap and inadequate contrast enhancement. A false positive diagnosis may be due to fibrotic, inflammatory or neoplastic periaortic changes, aneurysm of the sinus of Valsalva, or artifacts.
authors.affiliation: Institut für Diagnostische Radiologie, Kantonsspital St. Gallen.
authors.forename: M
authors.initials: M
authors.lastname: Haertel
authors.forename: P
authors.initials: P
authors.lastname: Wiederkehr
authors.forename: W
authors.initials: W
authors.lastname: Zaunbauer
mesh_terms: D000368:Aged; D000784:Aortic Dissection / Q000000981:diagnostic imaging* / Q000473:pathology; D001011:Aorta / Q000473:pathology; D001014:Aortic Aneurysm / Q000000981:diagnostic imaging* / Q000473:pathology; D001027:Aortography; D005188:False Negative Reactions; D005189:False Positive Reactions; D006801:Humans; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed
vernacular_title: Zur computertomographischen Diagnostik des Aneurysma dissecans aortae.