摘要
目的 :显示多元线圈阵列在球形头模中产生的电磁场分布。方法 :设计了一种新型经颅磁刺激仪的线圈阵列 ,建立在人体头部产生的电磁场模型。结果 :计算出不同线圈电流组态下 ,合成刺激磁场及感应电场在人体头部的分布 ,并作图显示几种电流组态下 ,三维图形和二维等高线图。结论 :多信道经颅磁刺激线圈阵列在人体头部产生的电磁场可控性强 ,聚焦性能强 。
Objective:Distribution of magnetic and electric fields induced inside a spherical volume conductor by coil array of transcranial brain multichannel magnetic stimulation are shown. Methods: The coil array of transcranial brain multichannel magnetic stimulation is designed and the theoretical field model is built in this paper. Results: All kinds of distribution of magnetic and electric fields induced inside a spherical volume conductor by different driving current are calculated. Three kinds of field distribution are shown as contour lines and 3-D mesh charts of the magnitude of B and E. Conclusion: The magnetic and electric fields produced by transcranial brain multichannel magnetic stimulation are easy to focus and control, and they can focus on two or more targets simultaneously.
出处
《天津医科大学学报》
2001年第1期38-40,共3页
Journal of Tianjin Medical University
关键词
磁刺激
线圈阵列
磁场分布
感应电场分布
Magnetic stimulation
Coil array
Distribution of the magnetic fields
Distribution of the induced electric fields
