経頭蓋磁気刺激による咬筋MEPsの導出法 : 刺激コイルの形状とかみしめ強度の影響
Motor evoked potentials in masseter muscle by transcranial magnetic stimulation : Influence of stimulation coils and occlusal force

Takashi Katsuma, Akira Kawano, Yasuharu Hasegawa, Yoshiyuki Onchi, Teruta Maeda, Hiroshi Inoue
2001 Shikaigaku  
The purpose of this study was to investigate the influences of stimu[ation coils and occlusal force on elicitation of motor evoked potentials (MEPs) in the masseter muscle by transcranial magnetic stimulation (TMS). Five healthy male subjects were asked to clench with light or strong force to record the MEPs in the bilateral masseter muscles by TMS with three different coi[s (round, figureeight and double cone). Stimulation strengths ranged from 30 to 70% of the maximum output for each coi[, We
more » ... found that the: MEPs recorded in the ipsilateral masseter muscle had short latency (about 3.0ms) and these in the bilateral masseter muscles had long latency (about 8.0 ms), MEPs in the contralateral masseter muscle were elicited only in heavy clenchings, The double cone coil elicited the MEPs highest. These results suggest that cortical MEPs by TMS were elicited most easily with heavy clenchings and in combination with the double cone coil, Shika
doi:10.18905/shikaigaku.64.1_28 fatcat:qyk34friy5d6vp5ibq72bg6cbm