MAGNETIC COIL STIMULATION OF THE SPINAL-CORD IN THE DOG - EFFECT OF REMOVAL OF BONY STRUCTURE ON EDDY-CURRENT

被引：8
作者：
MACHIDA, M
KIMURA, J
YAMADA, T
YARITA, M
机构：
[1] Department of Orthopaedic Surgery, Nihon University School of Medicine, Tokyo
[2] Department of Neurology, Kyoto University Faculty of Medicine, Kyoto
[3] Division of Clinical Electrophysiology, University of Iowa Hospitals and Clinics, Iowa City, IA
[4] Nihon Kohden Corporation, Tokyo
来源：
SPINE | 1992年 / 17卷 / 11期
关键词：
SPINAL CORD; MAGNETIC STIMULATION; VOLUME CONDUCTION; BONE INTERFERENCE;
D O I：
10.1097/00007632-199211000-00023
中图分类号：
R74 [神经病学与精神病学];
学科分类号：
摘要：
Magnetic coil stimulation applied to the spine excites the lumbosacral roots rather than the spinal cord itself. To evaluate the mechanism responsible for this phenomenon, the effects of volume conduction on the activation of neural elements were studied. In ten intact dogs compound muscle action potentials could be recorded in the soleus muscle only when the magnetic coil was placed over the cauda equina. After laminectomy and pediculotomy, compound muscle action potentials also could be elicited when the magnetic coil was placed over the spinal cord. These findings suggest that the bony structure surrounding the spinal cord interferes with the spread of magnetically induced eddy currents to the spinal cord.
引用
收藏
页码：1405 / 1408
页数：4
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