Intracranial meningiomas: high-field MR imaging.
Publication/Presentation Date
11-1-1986
Abstract
Twenty-five newly diagnosed intracranial meningiomas were evaluated with magnetic resonance (MR) imaging at 1.5 T, and findings were correlated with those of computed tomography (CT), angiography, and tumor histology. Meningiomas were generally hypointense on T1-weighted images and hyperintense on T2-weighted images relative to cerebral white matter. In comparison with the cortex, they were hypointense or isointense on T1-weighted images and isointense or hyperintense on T2-weighted images. A heterogeneous texture produced by tumor vascularity, calcifications, cystic foci, or an intrinsic speckled or mottled pattern was observed in all but the smallest lesions. An interface between meningioma and brain was uniformly present and consisted of a cerebro-spinal fluid cleft, vascular rim, or dural margin. Large meningiomas were associated with arcuate displacement and compression of adjacent gyri. MR imaging was superior to CT in defining extracerebral tumor location, tumor vascularity, arterial encasement, and venous sinus invasion. No correlation was found between the appearance on MR images and the pathologic classification.
Volume
161
Issue
2
First Page
369
Last Page
375
ISSN
0033-8419
Published In/Presented At
Spagnoli, M. V., Goldberg, H. I., Grossman, R. I., Bilaniuk, L. T., Gomori, J. M., Hackney, D. B., & Zimmerman, R. A. (1986). Intracranial meningiomas: high-field MR imaging. Radiology, 161(2), 369–375. https://doi.org/10.1148/radiology.161.2.3763903
Disciplines
Medicine and Health Sciences | Pediatrics
PubMedID
3763903
Department(s)
Department of Pediatrics
Document Type
Article