title: Identification of recent lacunar lesions in cases of multiple small infarctions by magnetic resonance  imaging.
abstract: In nine patients with recent lacunar stroke who revealed multiple small lesions in x-ray computed tomography (CT) and magnetic resonance imaging (MRI), CT and MRI enhancement studies were performed on the same day employing iodinated contrast medium and gadolinium-diethylenetriaminepentaacetic acid (Gd-DTPA), respectively. In CT, the injection of contrast medium enhanced recent lesions in only four of the nine patients; furthermore, the effect was weak. In MRI, the injection of Gd-DTPA enhanced recent lesions in all patients except for one who was examined 4 weeks after ictus, and the effect was excellent. Recent infarcts could be identified only by Gd-DTPA-enhanced MRI in four of the nine patients. In patients with multiple small infarctions, identification of recent small infarcted lesions by CT or MRI is sometimes difficult; however, the use of Gd-DTPA in MRI makes it possible to distinguish recent infarcts from other lesions definitively.
authors.affiliation: Department of Medicine, National Cardiovascular Center, Osaka, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Miyashita
authors.forename: H
authors.initials: H
authors.lastname: Naritomi
authors.forename: T
authors.initials: T
authors.lastname: Sawada
authors.forename: M
authors.initials: M
authors.lastname: Nakamura
authors.forename: Y
authors.initials: Y
authors.lastname: Kuriyama
authors.forename: M
authors.initials: M
authors.lastname: Ogawa
authors.forename: S
authors.initials: S
authors.lastname: Imakita
mesh_terms: D000368:Aged; D001921:Brain / Q000000981:diagnostic imaging / Q000473:pathology; D002544:Cerebral Infarction / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D002561:Cerebrovascular Disorders / Q000175:diagnosis / Q000000981:diagnostic imaging; D003974:Diatrizoate Meglumine; D005069:Evaluation Studies as Topic; D005260:Female; D019786:Gadolinium DTPA; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009942:Organometallic Compounds; D004369:Pentetic Acid; D011149:Pons / Q000000981:diagnostic imaging / Q000473:pathology; D013997:Time Factors; D014057:Tomography, X-Ray Computed
chemical_list: D009942:Organometallic Compounds; D003974:Diatrizoate Meglumine; D004369:Pentetic Acid; D019786:Gadolinium DTPA