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Focus detection using PET and PET-guided epilepsy surgery Taketoshi Maehara 1 1Neurosurgery, Department of Brain Medical Science, Tokyo Medical and Dental University Keyword: FDG-PET , FMZ-PET , PET navigation , epilepsy surgery pp.790-798
Published Date 2005/10/10
DOI https://doi.org/10.11477/mf.1431100096
  • Abstract
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In order to achieve precise focus detection and perform precise epilepsy surgery, we introduced several software applications for the analysis of positron emission tomography(PET)data in conjunction with the digital imaging and communication in medicine(DICOM)system. As PET tracers we used F-18 fluorodeoxyglucose(FDG)and 11C-flumazenil(FMZ), a central benzodiazepine receptor antagonist. FDG-PET and FMZ-PET images were co-registered with MRI images using Dr. View image analysis software(Asahi Kasei Joho, Tokyo, Japan)on a personal computer. Statistical parametric mappings(SPM)of FDG-PET and FMZ-PET were generated using SPM99 for comparison with normal subjects. These methods offer objective and reproducible PET findings in detecting epileptic foci. We also performed intraoperative PET-guided epilepsy surgery using Stealth Station(MACH 4.0)for precise focus resection. This system enables the detection of epileptogenic areas by both electrocorticography and PET images during surgery. We think that these new diagnostic methods for analysis of FDG-and FMZ-PET and the new intraoperative navigation system guided by the PET images will play an important role in epilepsy surgery.


Copyright © 2005, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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