Ruohonen J, Ravazzani P, Grandori F, Ilmoniemi R J
BioMag Laboratory, Helsinki University Central Hospital, Finland.
IEEE Trans Biomed Eng. 1999 Jun;46(6):646-51. doi: 10.1109/10.764941.
Human excitable cells can be stimulated noninvasively with externally applied time-varying electromagnetic fields. The stimulation can be achieved either by directly driving current into the tissue (electrical stimulation) or by means of electro-magnetic induction (magnetic stimulation). While the electrical stimulation of the peripheral neuromuscular system has many beneficial applications, peripheral magnetic stimulation has so far only a few. This paper analyzes theoretically the use of multiple magnetic stimulation coils to better control the excitation and also to eventually mimic electrical stimulation. Multiple coils allow electronic spatial adjustment of the shape and location of the stimulus without moving the coils. The new properties may enable unforeseen uses for peripheral magnetic stimulation, e.g., in rehabilitation of patients with neuromuscular impairment.
人体可兴奋细胞能够通过外部施加的随时间变化的电磁场进行非侵入性刺激。这种刺激既可以通过直接将电流驱动到组织中（电刺激）来实现，也可以借助电磁感应（磁刺激）来实现。虽然外周神经肌肉系统的电刺激有许多有益的应用，但到目前为止外周磁刺激的应用却很少。本文从理论上分析了使用多个磁刺激线圈来更好地控制兴奋，并最终模拟电刺激的情况。多个线圈允许在不移动线圈的情况下对刺激的形状和位置进行电子空间调整。这些新特性可能使外周磁刺激有一些意想不到的用途，例如用于神经肌肉损伤患者的康复治疗。
