Fluid-attenuated inversion-recovery MR imaging in assessment of intracranial oligodendrogliomas.
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.
White
Matthew L
ML
Department of Radiology, University of Iowa College of Medicine, Iowa City, IA 52242-1077, USA. matthew-white@uiowa.edu
Zhang
Yan
Y
Smoker
Wendy R K
WR
Kirby
Patricia A
PA
Hayakawa
Minako
M
Sickels
William J
WJ
Ryken
Timothy C
TC
Berbaum
Kevin
K
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