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Differentiating Between Primary Central Nervous System Lymphomas and Glioblastomas: Combined Use of Perfusion-Weighted and Diffusion-Weighted Magnetic Resonance Imaging.

Abstract：

OBJECTIVE:The purpose of this study was to determine whether combined diffusion-weighted imaging and dynamic susceptibility contrast-enhanced perfusion-weighted imaging magnetic resonance imaging can be used to differentiate between common malignant brain tumors, including lymphomas and high-grade gliomas. METHODS:We evaluated 87 patients with histologically confirmed brain tumors, including 33 primary central nervous system lymphomas (PCNSLs) and 54 glioblastomas (GBMs). All patients underwent conventional magnetic resonance imaging, diffusion-weighted imaging, and perfusion-weighted imaging before surgical removal of the lesion or stereotactic biopsy. RESULTS:The maximum relative cerebral blood volume (rCBV) ratios of GBMs were significantly higher than those of PCNSLs (P < 0.0001). The maximum rCBVs helped to distinguish PCNSLs from GBMs with 97.0% sensitivity, 90.7% specificity, and 0.98 area under the curve. The minimum apparent diffusion coefficients (ADCs) of PCNSLs were significantly lower than those of GBMs (P < 0.0001). At an rCBV cutoff value of 4.0 and a minimum ADC of 1.0 × 10-3 mm2/second, it was possible to differentiate between PCNSLs and GBMs. CONCLUSIONS:The combination of rCBV and ADC can facilitate the differentiation between PCNSLs and GBMs.

journal_name

World Neurosurg

journal_title

World neurosurgery

authors

Makino K,Hirai T,Nakamura H,Kuroda JI,Shinojima N,Uetani H,Kitajima M,Yano S

doi

10.1016/j.wneu.2017.10.141

subject

Has Abstract

pub_date

2018-04-01 00:00:00

pages

e1-e6

eissn

1878-8750

issn

1878-8769

pii

S1878-8750(17)31869-7

journal_volume

112

pub_type

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