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Published in: Neurological Sciences 10/2020

Open Access 01-10-2020 | Endoscopy | Original Article

Sensitivity of magnetic resonance tomographic angiography for detecting the degree of neurovascular compression in trigeminal neuralgia

Authors: Yun-bo Hao, Wei-jie Zhang, Min-jie Chen, Ying Chai, Wen-hao Zhang, Wen-bin Wei

Published in: Neurological Sciences | Issue 10/2020

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Abstract

Purpose

Neurovascular compression (NVC) is hypothesized to be the main pathogenic factor of trigeminal neuralgia (TN). Microvascular decompression (MVD) has become a popular surgery for TN, and the success rate depends on the degree of NVC. As the routine examination before MVD, magnetic resonance tomographic angiography (MRTA) shows high sensitivity for detecting NVC. However, there are no reports on the sensitivity of MRTA for assessing the degree of NVC.

Methods

This study aimed to evaluate the sensitivity of MRTA for determining the degree of NVC by comparing preoperative MRTA and intraoperative endoscopy findings. A total of 480 patients who suffered from TN and underwent MVD were included. Their preoperative MRTA and intraoperative endoscopy findings were reviewed. The kappa test was used to identify similarities between the MRTA and endoscopy findings.

Results

The degree of NVC on preoperative MRTA was similar to that on endoscopy (kappa = 0.770). The number of offending vessels according to preoperative MRTA was coincident with that according to endoscopy (kappa = 0.722).

Conclusion

MRTA had high sensitivity for detecting not only the presence of NVC but also the degree of NVC.
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Metadata
Title
Sensitivity of magnetic resonance tomographic angiography for detecting the degree of neurovascular compression in trigeminal neuralgia
Authors
Yun-bo Hao
Wei-jie Zhang
Min-jie Chen
Ying Chai
Wen-hao Zhang
Wen-bin Wei
Publication date
01-10-2020
Publisher
Springer International Publishing
Published in
Neurological Sciences / Issue 10/2020
Print ISSN: 1590-1874
Electronic ISSN: 1590-3478
DOI
https://doi.org/10.1007/s10072-020-04419-0

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