title: Fluid-attenuated inversion-recovery MR imaging in assessment of intracranial oligodendrogliomas.
abstract: This retrospective study consisted of 17 consecutive patients with oligodendrogliomas. We qualitatively and quantitatively assessed the diagnostic value of fluid-attenuated inversion-recovery (FLAIR) images compared with T2-weighted fast spin-echo (FSE) images for evaluating intracranial oligodendrogliomas. Qualitative evaluations of signal intensity, tumor conspicuity, definition of tumor margin, distinction between solid and cystic-like parts within tumor, and calcification were performed. Quantitative criteria comparing FLAIR to T2-weighted FSE images included tumor-to-background contrast and contrast-to-noise ratio (CNR) and tumor-to-cerebrospinal fluid (CSF) contrast and CNR. Our results demonstrate that the FLAIR sequence can replace the T2-weighted FSE sequence for evaluating oligodendrogliomas.
authors.affiliation: Department of Radiology, University of Iowa College of Medicine, Iowa City, IA 52242-1077, USA. matthew-white@uiowa.edu
authors.forename: Matthew L
authors.initials: ML
authors.lastname: White
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhang
authors.forename: Wendy R K
authors.initials: WR
authors.lastname: Smoker
authors.forename: Patricia A
authors.initials: PA
authors.lastname: Kirby
authors.forename: Minako
authors.initials: M
authors.lastname: Hayakawa
authors.forename: William J
authors.initials: WJ
authors.lastname: Sickels
authors.forename: Timothy C
authors.initials: TC
authors.lastname: Ryken
authors.forename: Kevin
authors.initials: K
authors.lastname: Berbaum
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001932:Brain Neoplasms / Q000175:diagnosis*; D005260:Female; D006801:Humans; D007089:Image Enhancement; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009837:Oligodendroglioma / Q000175:diagnosis*; D012189:Retrospective Studies; D014481:United States