摘要
目的探讨脑磁图(MEG)在癫外科灶定位中的临床价值。方法回顾性分析47例行MEG及头皮视频脑电图(V-EEG)检查的难治性癫病人的病例资料。其中39例接受手术治疗;10例开颅行皮质脑电(ECoG)监测。将MEG的结果与发作期及发作间期V-EEG及ECoG结果进行对比分析。结果MEG显示灶位置与发作间期和发作期V-EEG结果吻合率分别达76.6%和80.9%,与发作间期和发作期ECoG的吻合率均为80.0%。39例手术病人中,术后EngelⅠ级21例,Ⅱ级10例,Ⅲ级8例;其中29例拟切除的区域涉及到解剖学意义上的功能区,术中根据MEG显示的功能区位置进行了适当的处理,术后神经系统功能障碍未加重。结论MEG为无创性检查,对高频放电检出率较高,弥补了脑电在介质衰减方面的不足;同时也有利于癫外科治疗中对功能区的保护。
Objective To determine the clinical value of magnetoencephalography(MEG) in the location of epileptic foci for epilepsy surgery.Methods Forty-seven intractable epilepsy cases defined by the MEG and scalp video-electroencephalography(V-EEG) were analyzed retrospectively.Surgery was performed in 39 patients,and craniotomy for electrocorticography(ECoG) in 10.Results of MEG,ictal EEG,interictal EEG and ECoG were compared.Results The concordance between the location of MEG spike foci and the location identified...
出处
《中国微侵袭神经外科杂志》
CAS
2008年第11期496-498,共3页
Chinese Journal of Minimally Invasive Neurosurgery
关键词
脑磁图描记术
致灶
显微外科手术
magnetoencephalography
epileptogenic focus
microsurgery
