Analysis of Magnetic Fields Recorded from Stimulated Leg Nerves
Analysis of Magnetic Fields Recorded from Stimulated Leg Nerves
复制标题
刺激腿部神经记录的磁场分析
DOI：
10.1097/00004669-199705000-00019
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
G. Curio
中科院分区：
文献类型：
--
作者：
M. Burghoff;W. Haberkorn;B. Mackert;G. Curio
用多通道dc-SQUID系统在磁屏蔽室内记录受刺激腿部神经的电流作用产生的下背部磁场。时空场图显示了这些动作电流沿神经的传播。提出的神经磁场分析基于多极扩展，并考虑到激活的神经节段是线性扩展的场源。这种源分析允许估计特征源参数，如体表以下的深度，空间范围和电流强度。
Magnetic fields over the lower back generated by electric action currents in stimulated leg nerves were recorded inside a magnetically shielded room with a multichannel dc-SQUID system. Spatio-temporal field maps show the propagation of these action currents along the nerves. The proposed analysis of the nerve magnetic fields is based on the multipole expansion and takes into account that activated nerve segments are linearly extended field sources. This source analysis allows the estimation of characteristic source parameters, such as depth below the body surface, spatial extent, and current strength.