CAJ | 학술논문

目的通过分析颅内脑电中Gamma频段能量变化来实现大脑皮层感觉运动区定位.方法利用Gamma频段能量分析法、诱发电位(SEP)和皮层电刺激(CES)等电生理检查对8例因难治性癫痫而行颅内电极植入术的患者进行大脑皮层感觉运动区定位,以减少术后功能缺失等并发症.将Gamma频段能量分析方法的定位结果与SEP与CES进行比较.结果通过统计对比,Gamma频段能量分析所得上肢感觉运动区电极编号与CES和SEP所得感觉运动区电极编号完全重合的占80.7％,完全重合或者紧邻的达92.3％.结论 Gamma频段能量分析方法是一种敏感性高、结果准确的大脑皮层功能区定位的新方法.
목적 통과분석로내뇌전중Gamma빈단능량변화래실현대뇌피층감각운동구정위.방법 이용Gamma빈단능량분석법、유발전위(SEP)화피층전자격(CES)등전생리검사대8례인난치성전간이행로내전겁식입술적환자진행대뇌피층감각운동구정위,이감소술후공능결실등병발증.장Gamma빈단능량분석방법적정위결과여SEP여CES진행비교.결과 통과통계대비,Gamma빈단능량분석소득상지감각운동구전겁편호여CES화SEP소득감각운동구전겁편호완전중합적점80.7％,완전중합혹자긴린적체92.3％.결론 Gamma빈단능량분석방법시일충민감성고、결과준학적대뇌피층공능구정위적신방법.
Objective To localize the sensory motor cortex of human brain by analyzing the power change in Gamma band ( ＞ 60 Hz ) of electrocorticography (ECoG) data.Methods Eight patients with intractable epilepsy underwent temporary placement of subdural electrodes. After surgery,scnsory cvokcd potential (SEP),electrocortical stimulation (CES) and event-related synchronization analysis of Gamma band ( Gamma ERS analysis) were performed to reduce the risk of complications.The results of Gamma ERS analysis were compared with those of SEP and CES.Results The results of Gamma ERS analysis had 80.7％ electrodes fitting perfectly those of CES and SEP.And the percentage reached 92.3％ if electrodes were superimposed or added adjacently.Conclusion The Gamma ERS analysis is a new sensitive and precise method for cortical function mapping.