title: [Subacute cerebral infarct: native and contrast medium-enhanced MRT].
abstract: Twenty-five patients with clinical and CT findings indicating supratentorial cerebral infarct were prospectively studied with MR. MR examinations were performed between the 3rd and 150th day after stroke. T2-weighted axial images were compared with T1-weighted sequences after i.v. administration of Gd-DTPA. T2-weighted images demonstrated parenchymal lesions in all 25 patients. Postcontrast T1-weighted images, however, displayed pathologic contrast enhancement in only 19 areas of infarction. In 5 of the 25 patients, the use of Gd-DTPA provided additional diagnostic information by demonstrating gyral contrast enhancement as a pattern typical for ischemia. In 2 of the 25 patients, pathologic contrast enhancement was observed in an area that was isointense to the surrounding brain tissue on the T2-weighted images. In one patient, Gd-DTPA improved differentiation between areas of subacute and chronic infarction. At present, in the patient with suspected cerebral infarction, MR imaging after i.v. administration of Gd-DTPA appears recommended when clinical findings and CT are equivocal.
authors.affiliation: Radiologische Klinik und Poliklinik, Klinikum Rudolf Virchow/Standort Charlottenburg, Freie Universität Berlin.
authors.forename: H
authors.initials: H
authors.lastname: Henkes
authors.forename: W
authors.initials: W
authors.lastname: Schörner
authors.forename: M
authors.initials: M
authors.lastname: Cordes
authors.forename: B
authors.initials: B
authors.lastname: Sander
authors.forename: B
authors.initials: B
authors.lastname: Schmitz
authors.forename: R
authors.initials: R
authors.lastname: Felix
mesh_terms: D000208:Acute Disease; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001921:Brain / Q000000981:diagnostic imaging / Q000473:pathology; D002544:Cerebral Infarction / Q000175:diagnosis*; D003287:Contrast Media; D005682:Gadolinium; D019786:Gadolinium DTPA; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008875:Middle Aged; D009942:Organometallic Compounds; D004369:Pentetic Acid; D011446:Prospective Studies; D013997:Time Factors; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media; D009942:Organometallic Compounds; D004369:Pentetic Acid; D005682:Gadolinium; D019786:Gadolinium DTPA
vernacular_title: Subakuter zerebraler Infarkt: native und kontrastmittelunterstützte MRT.