Title :
Electrode geometry and preferential stimulation of spinal nerve fibers having different orientations: A modeling study
Author :
Holsheimer, Jan ; Struijk, Johannes J.
Author_Institution :
Dept. of Electr. Eng., Univ. of Twente, Enschede, Netherlands
fDate :
Oct. 29 1992-Nov. 1 1992
Abstract :
In a computer modeling study of epidural spinal cord stimulation using a longitudinal array of electrode contacts, the effect of contact geometry and contact combination on the threshold voltages for stimulation of dorsal column (DC) fibers and dorsal root (DR) fibers was investigated. It was concluded that DC-fiber stimulation will be favoured when a tripolar combination and small contact length and spacing are used, while DR-fiber stimulation will be favoured when unipolar stimulation and large contact length are used.
Keywords :
bioelectric phenomena; biomedical electrodes; neurophysiology; physiological models; DC-fiber stimulation; DR-fiber stimulation; computer modeling; dorsal column fiber; dorsal root fiber; electrode contact; electrode geometry; epidural spinal cord stimulation; spinal nerve fiber; Analytical models; Biological system modeling; Bones; Electrodes; Geometry; Logic gates; Magnetic resonance imaging;
Conference_Titel :
Engineering in Medicine and Biology Society, 1992 14th Annual International Conference of the IEEE
Conference_Location :
Paris
Print_ISBN :
0-7803-0785-2
DOI :
10.1109/IEMBS.1992.5761836
