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Preoperative MR Imaging to Differentiate Chordoid Meningiomas from Other Meningioma Histologic Subtypes

Preoperative MR Imaging to Differentiate Chordoid Meningiomas from Other Meningioma Histologic... ORIGINAL RESEARCH ADULT BRAIN Preoperative MR Imaging to Differentiate Chordoid Meningiomas from Other Meningioma Histologic Subtypes X J.D. Baal, X W.C. Chen, X D.A. Solomon, X J.S. Pai, X C.-H. Lucas, X J.H. Hara, X N.A. Oberheim Bush, X M.W. McDermott, X D.R. Raleigh, and X J.E. Villanueva-Meyer ABSTRACT BACKGROUNDANDPURPOSE: ChordoidmeningiomasareuncommonWHOgradeIIprimaryintracranialneoplasmsthatpossessunique chordoid histology and follow an aggressive clinical course. Our aim was to assess the utility of qualitative MR imaging features and quantitativeapparentdiffusioncoefficientvaluesasdistinguishingpreoperativeMRimagingmetricstoidentifyanddifferentiatechordoid histology from other meningioma histologic subtypes. MATERIALS AND METHODS: Twenty-one patients with meningiomas with chordoid histology, which included both chordoid meningi- omas (50% chordoid histology) and meningiomas with focal chordoid histology (50% chordoid histology) with available preoperative MR imaging examinations, including diffusion-weighted imaging, were identified. Qualitative imaging features and quantitative ADC values were compared between meningiomas with chordoid histology and 42 nonchordoid meningiomas (29 WHO grade I, eleven WHO grade II, and 2 WHO grade III). 3 2 RESULTS: The median ADC (10 mm /s) of meningiomas with chordoid histology was significantly higher than nonchordoid meningiomas (1.16 versus 0.92, P  .001), as was the median normalized ADC (1.60 versus 1.19, P  .001). In subgroup analysis, the median and normalized ADC values of chordoid meningiomas http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png American Journal of Neuroradiology American Journal of Neuroradiology

Preoperative MR Imaging to Differentiate Chordoid Meningiomas from Other Meningioma Histologic Subtypes

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Publisher
American Journal of Neuroradiology
Copyright
© 2019 by American Journal of Neuroradiology
ISSN
0195-6108
eISSN
1936-959X
DOI
10.3174/ajnr.A5996
Publisher site
See Article on Publisher Site

Abstract

ORIGINAL RESEARCH ADULT BRAIN Preoperative MR Imaging to Differentiate Chordoid Meningiomas from Other Meningioma Histologic Subtypes X J.D. Baal, X W.C. Chen, X D.A. Solomon, X J.S. Pai, X C.-H. Lucas, X J.H. Hara, X N.A. Oberheim Bush, X M.W. McDermott, X D.R. Raleigh, and X J.E. Villanueva-Meyer ABSTRACT BACKGROUNDANDPURPOSE: ChordoidmeningiomasareuncommonWHOgradeIIprimaryintracranialneoplasmsthatpossessunique chordoid histology and follow an aggressive clinical course. Our aim was to assess the utility of qualitative MR imaging features and quantitativeapparentdiffusioncoefficientvaluesasdistinguishingpreoperativeMRimagingmetricstoidentifyanddifferentiatechordoid histology from other meningioma histologic subtypes. MATERIALS AND METHODS: Twenty-one patients with meningiomas with chordoid histology, which included both chordoid meningi- omas (50% chordoid histology) and meningiomas with focal chordoid histology (50% chordoid histology) with available preoperative MR imaging examinations, including diffusion-weighted imaging, were identified. Qualitative imaging features and quantitative ADC values were compared between meningiomas with chordoid histology and 42 nonchordoid meningiomas (29 WHO grade I, eleven WHO grade II, and 2 WHO grade III). 3 2 RESULTS: The median ADC (10 mm /s) of meningiomas with chordoid histology was significantly higher than nonchordoid meningiomas (1.16 versus 0.92, P  .001), as was the median normalized ADC (1.60 versus 1.19, P  .001). In subgroup analysis, the median and normalized ADC values of chordoid meningiomas

Journal

American Journal of Neuroradiology – American Journal of Neuroradiology

Published: Mar 1, 2019

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