Gliomas: classification with MR imaging.

Abstract:

:The findings at magnetic resonance (MR) imaging in a group of 36 pathologically verified supratentorial gliomas were analyzed and compared with the biopsy diagnoses (a) to determine whether MR imaging could be used to classify astrocytic-series tumors into a three-tiered system of low-grade astrocytoma, anaplastic astrocytoma, and glioblastoma multiforme; and (b) to evaluate MR imaging features that may aid in this classification. The MR characteristics evaluated were crossing of the midline, edema, tumor signal heterogeneity, hemorrhage, border definition, cyst formation or necrosis, and mass effect. The statistically significant MR characteristics (positive predictors) were mass effect (P = .0000) and cyst formation or necrosis (P = .0512). The MR accuracy rate approached that of neuropathologic diagnosis, which is subject to sampling errors. MR imaging may serve as an adjunct in case management when the clinical course and MR findings appear to be at odds with the neuropathologic diagnosis.

journal_name

Radiology

journal_title

Radiology

authors

Dean BL,Drayer BP,Bird CR,Flom RA,Hodak JA,Coons SW,Carey RG

doi

10.1148/radiology.174.2.2153310

subject

Has Abstract

pub_date

1990-02-01 00:00:00

pages

411-5

issue

2

eissn

0033-8419

issn

1527-1315

journal_volume

174

pub_type

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