RECRUITMENT OF DORSAL COLUMN FIBERS IN SPINAL-CORD STIMULATION - INFLUENCE OF COLLATERAL BRANCHING
RECRUITMENT OF DORSAL COLUMN FIBERS IN SPINAL-CORD STIMULATION - INFLUENCE OF COLLATERAL BRANCHING
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DOI：
10.1109/10.256423
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发表时间：
1992-09-01
影响因子：
4.6
通讯作者：
BOOM, HBK
中科院分区：
文献类型：
--
作者：
STRUIJK, JJ;HOLSHEIMER, J;BOOM, HBK
提出了一种有髓背柱神经纤维的电网络模型。使用均质体积导体和更真实的脊髓模型研究电刺激的效果。背柱神经纤维的一个重要特征是存在垂直于吻尾纤维的有髓侧支。有人发现，跨膜电位，由于外部单极刺激，在节点处的侧支连接，是显着的侧支的存在下的影响。结果表明，背柱纤维的兴奋阈值和阻滞阈值均比无分支纤维降低50%。
An electrical network model of myelinated dorsal column nerve fibers is presented. The effect of electrical stimulation was investigated using both a homogeneous volume conductor and a more realistic model of the spinal cord. An important feature of dorsal column nerve fibers is the presence of myelinated collaterals perpendicular to the rostro-caudal fibers. It was found that transmembrane potentials, due to external monopolar stimulation, at the node at which a collateral is attached, is significantly influenced by the presence of the collateral. It is concluded that both excitation threshold and blocking threshold of dorsal column fibers are decreased up to 50% compared to unbranched fibers.