基于小波变换的臂丛神经损伤后疼痛患者脊髓电信号分析

摘要

Objective：Collecting the electric signal of spinal cord in the process of surgery curing brachial plexus avulsion pain patients and analyzeing it to guide the surgery.Methods：The data were analyzed with wave transform.The results were described using time-frequency analysis method.Results：Comparing with uninjured side and affected side after surgeries,the signal of affected side before surgery had difference in 20 Hz range.It had a higher energy.Conclusion：Surgery can be guided by measuring and anglicizing electric signal of spinal cord.%目的：手术治疗臂丛神经损伤后疼痛过程中采集脊髓电信号,分析其频域特征,以指导手术进行的程度和范围。方法：应用小波变换处理术中电极记录的脊髓信号,用时频表示的方法来表示分析臂丛神经损伤患侧、健侧和患侧手术修复后脊髓电信号的结果。结果：讨论发现患侧的电信号与患侧术后电信号、健侧电信号相比,频率范围在20Hz左右有显著的差异,患侧数据20Hz频率信号能量明显高于其余两者。结论：臂丛神经损伤患侧脊髓电信号20Hz频率能量高于健侧和术后电信号相应频带能量的特性,可用来指导治疗臂丛神经损伤后疼痛的手术。