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• Clinical Article •
Rim enhancement of meningiomas in contrast-enhanced T2 fluid-attenuated inversion recovery magnetic resonance imaging: Based on pathological findings
WU Shiman  FANG Ziwei  ZHANG Hua  RUI Wenting  JIN Teng  REN Yan  TANG Ying  YAO Zhenwei 

Cite this article as: Wu SM, Fang ZW, Zhang H, et al. Rim enhancement of meningiomas in contrast-enhanced T2 fluid-attenuated inversion recovery magnetic resonance imaging: Based on pathological findings. Chin J Magn Reson Imaging, 2019, 10(2): 115-120. DOI:10.12015/issn.1674-8034.2019.02.008.


[Abstract] Objective: To determine the vessels condition of the tumor-brain interface for tumor adhesion preoperative prediction, we evaluate the rim enhancement of meningiomas on contrast-enhanced T2 fluid-attenuated inversion recovery (FLAIR) in meningiomas and the associated pathological findings.Materials and Methods: 89 patients with meningiomas underwent tumor excision in our hospital from June 2017 to June 2018. All patients have been performed 3.0 T MR scans, including sagittal and cross-sectional T1WI, cross-sectional T2WI, T2 FLAIR, sagittal and cross-sectional enhanced T1WI, and finally T2 FLAIR.Results: All meningiomas in 89 cases showed significant enhancement on MRI. On enhanced T2 FLAIR, 54 cases (60.7%) of meningiomas showed rim enhancement, 25 cases (28.1%) of which were not seen on the plain T2 FLAIR sequence or the enhanced T1-weighted (T1WI) images. The surface of the meningiomas with positive signs had higher microvessel density pathologically, indicating pia supply. Rather than the data collecting from enhanced T1WI images, 52 cases showed meningeal tail sign, 35 cases (39.3%) of which showed greater disctinction in enhanced T2 FLAIR images.Conclusions: The rim enhancement of meningioma on T2 FLAIR suggest the possibility of pial blood supply, which means the meningioma are supplied by both intracranial and extracranial arteries. It also provides pathologically predictive information about the tumor-brain interface to guide tumor excision surgery plan.
[Keywords] fluid-attenuated inversion recovery；meningioma；blood supply；magnetic resonance imaging

WU Shiman Department of Radiology, Huashan Hospital, Fudan University, Shanghai 200040, China

FANG Ziwei Department of Radiology, Huashan Hospital, Fudan University, Shanghai 200040, China

ZHANG Hua Department of Radiology, Huashan Hospital, Fudan University, Shanghai 200040, China

RUI Wenting Department of Radiology, Huashan Hospital, Fudan University, Shanghai 200040, China

JIN Teng Department of Radiology, Huashan Hospital, Fudan University, Shanghai 200040, China

REN Yan Department of Radiology, Huashan Hospital, Fudan University, Shanghai 200040, China

TANG Ying Department of Radiology, Huashan Hospital, Fudan University, Shanghai 200040, China

YAO Zhenwei* Department of Radiology, Huashan Hospital, Fudan University, Shanghai 200040, China

*Correspondence to: Yao ZW, E-mail: aocnhnr@126.com

Conflicts of interest   None.

ACKNOWLEDGMENTS  This work was part of National Nature Science foundation of China Research No. 81671732
Received  2018-10-16
Accepted  2018-12-12
DOI: 10.12015/issn.1674-8034.2019.02.008
Cite this article as: Wu SM, Fang ZW, Zhang H, et al. Rim enhancement of meningiomas in contrast-enhanced T2 fluid-attenuated inversion recovery magnetic resonance imaging: Based on pathological findings. Chin J Magn Reson Imaging, 2019, 10(2): 115-120. DOI:10.12015/issn.1674-8034.2019.02.008.

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