Research on the Surface Potential Distribution of Spinal Cord Based on Finite Element Analysis_Journal of Biomedical Engineering

Authors：

HONGBo ,  SHENXiaoyan , LIUYong

College of Electronics and Information, Nantong University, Nantong 226019, China;

Corresponding author：

SHENXiaoyan, Email: xiaoyansho@ntu.edu.cn

Keywords：

finite element analysis; interneuron; spinal cord; potential

DOI：

10.7507/1001-5515.20150057

Video：

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Finite element analysis can be used to study the change of the structure and the interior field intensity of human and animal body organs and tissues with simulation experiment. We in our research used finite element analysis software to analyze and solve the spinal cord surface potential problems, and investigated the transmission features of signals generated by interneurons in spinal nerves which were related with body motion control and sensory processing. A three dimensional model of electrical source in rat spinal cord was built, and the influence on potential distribution on spinal cord surface caused by position changes of electrical source in transverse direction and dorsoventral direction were analyzed and calculated. We obtained the potential distribution curves of spinal cord surface and found that the potential distribution on spinal cord surface showed monotone. In addition, potentials of some registration points were smaller than that of registration points around.

Citation： HONGBo, SHENXiaoyan, LIUYong. Research on the Surface Potential Distribution of Spinal Cord Based on Finite Element Analysis. Journal of Biomedical Engineering, 2015, 32(2): 311-315. doi: 10.7507/1001-5515.20150057 Copy

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1. MARDER E, BUCHER D. Central pattern generators and the control of rhythmic movements[J]. Curr Biol, 2001, 11(23):R986-R996.
2. 张缨, 纪树荣.脊髓步行中枢模式发生器[J].中国康复理论与实践, 2006, 12(12):1017-1020.
3. 赵博, 张洪亮.Ansoft 12在工程电磁场中的应用[M].北京:中国水利水电出版社, 2010.
4. VIALA D, BUISSERET-DELMAS C, PORTAL J J. An attempt to localize the lumbar locomotor generator in the rabbit using 2-deoxy-[14C]glucose autoradiography[J]. Neurosci Lett, 1988, 86(2):139-143.
5. DAI X, NOGA B R, DOUGLAS J R, et al. Localization of spinal neurons activated during locomotion using the c-fos immunohistochemical method[J]. J Neurophysiol, 2005, 93(6):3442-3452.
6. KJAERULFF O, BARAJON I, KIEHN O. Sulphorhodamine-labelled cells in the neonatal rat spinal cord following chemically induced locomotor activity in vitro[J]. J Physiol, 1994, 478(Pt 2):265-273.
7. LEMAY M A, GRASSE D, GRILL W M. Hindlimb endpoint forces predict movement direction evoked by intraspinal microstimulation in cats[J]. IEEE Trans Neural Syst Rehabil Eng, 2009, 17(4):379-389.

Journal of Biomedical Engineering

Research on the Surface Potential Distribution of Spinal Cord Based on Finite Element Analysis

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