Finite Element Models of Transcutaneous Spinal Cord Stimulation
Transcutaneous spinal cord stimulation (SCS) is a noninvasive method to electrically stimulate afferent structures of the human lumbar spinal cord. These are the same neural targets as predominantly activated by epidural implants. Biophysical principles derived from computer simulations contributed to the identification of the directly activated neural structures. These simulations combine finite element (FE) models with nerve fiber models and the activating function concept. The transcutaneously generated electric field is inherently non-focal, and thus, nerve fiber activation relies on inhomogeneities of the volume conductor and the anatomical paths of the target fibers relative...
KeywordsNeural Structure Spinal Cord Stimulation Lumbar Spinal Cord Volume Conductor Posterior Root
We wish to acknowledge the support of the Vienna Science and Technology Fund (WWTF), Proj. Nr. LS11-057, and the Wings for Life Spinal Cord Research Foundation (WfL), Proj. Nr. WFL-AT-007/11. Special thanks are due to Frank Rattay for his insightful comments.
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