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Preoperative Assessment of Microvascular Decompression for Hemifacial Spasm with Fusion Imaging of 3D MR Cisternogram/Angiogram Keisuke ONODA 1 , Toru SATOH 2 , Yasuyuki MIYOSHI 1 , Koji TOKUNAGA 1 , Kenji SUGIU 1 , Isao DATE 1 1Department of Neurological Surgery,Okayama University Graduate School of Medicine,Dentistry and Pharmaceutical Sciences 2Department of Neurological Surgery,Ryofukai Satoh Neurosurgical Hospital Keyword: hemifacial spasm , microvascular decompression , three dimensional MR cisternogram , three dimensional MR angiogram pp.785-791
Published Date 2006/8/1
DOI https://doi.org/10.11477/mf.1436100264
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 The preoperative assessment of microvascular decompression (MVD) for hemifacial spasm has been performed with MRI,but assessment of the compressive status by 2D imaging has a number of limitations. We used a fusion image of the 3D MR cisternogram and co-registered 3D MR angiogram,reconstructed from MR cisternogram,obtained by 3D fast spin-echo sequence,and MR angiography,3D time-of-flight and spoiled-gradient recalled sequences,for the preoperative assessment of the offending artery in 10 patients with hemifacial spasm. The anatomical relationship of the nerve-vessel complex was assessed on the simulated images,and compared with the intraoperative findings. The fusion image of the 3D MR cisternogram/angiogram depicted contours of the brain,nerves,and vessels clearly,and that allowed precise assessment of the pathogenic compression of the facial nerve by the offending vessels,comparative to the operative findings. The fusion imaging of the 3D MR cisternogram/angiogram may provide useful information in the surgical planning of MVD for hemifacial spasm.


Copyright © 2006, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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