title: Magnetic resonance imaging of white matter lesions in HIV infection.
abstract: Previous studies of the frequency of high-signal lesions in human immunodeficiency virus (HIV) infection have had methodological weaknesses regarding lack of control groups, differing machine strengths, and biased subject selection. To obtain a more accurate estimate of prevalence, MRI scans were performed on 243 HIV-positive and HIV-negative homosexual or bisexual men with no history of intravenous drug use. Axial T2-weighted (long TR/TE, spin-echo) MRI scans were rated blindly for presence of focal white matter high-signal lesions. Incidence of hyperintensities was low in all groups, although slightly higher in patients with AIDS, and was not associated with neuropsychological performance. The lower incidence of hyperintensities appears to relate to elimination of methodological problems in previous studies.
authors.affiliation: Department of Psychiatry, Ohio State University, Columbus 43210.
authors.forename: R A
authors.initials: RA
authors.lastname: Bornstein
authors.forename: D
authors.initials: D
authors.lastname: Chakeres
authors.forename: M
authors.initials: M
authors.lastname: Brogan
authors.forename: H A
authors.initials: HA
authors.lastname: Nasrallah
authors.forename: R J
authors.initials: RJ
authors.lastname: Fass
authors.forename: M
authors.initials: M
authors.lastname: Para
authors.forename: C
authors.initials: C
authors.lastname: Whitacre
mesh_terms: D015526:AIDS Dementia Complex / Q000175:diagnosis* / Q000523:psychology; D000328:Adult; D001727:Bisexuality / Q000523:psychology; D001921:Brain / Q000473:pathology*; D006716:Homosexuality / Q000523:psychology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009483:Neuropsychological Tests