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