title: Cortical laminar necrosis in brain infarcts: chronological changes on MRI.
abstract: We studied the MRI characteristics of cortical laminar necrosis in ischaemic stroke. We reviewed 13 patients with cortical laminar high signal on T1-weighted images to analyse the chronological changes in signal intensity and contrast enhancement. High-density cortical lesions began to appear on T1-weighted images about 2 weeks after the ictus. At 1-2 months they were prominent. They began to fade from 3 months but could be seen up to 11 months. These cortical lesions showed isointensity or high intensity on T2-weighted images and did not show low intensity at any stage. Contrast enhancement of the laminar lesions was prominent at 1-2 months and became less apparent from 3 months, but could be seen up to 8 months.
authors.affiliation: Department of Neurosurgery, Osaka City General Hospital, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Komiyama
authors.forename: M
authors.initials: M
authors.lastname: Nishikawa
authors.forename: T
authors.initials: T
authors.lastname: Yasui
mesh_terms: D000368:Aged; D002540:Cerebral Cortex / Q000473:pathology*; D002544:Cerebral Infarction / Q000175:diagnosis*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009336:Necrosis