运动单位数目估计和传统肌电图技术在神经肌肉疾病中的应用比较  

Comparison of Motor Unit Number Estimates and Conventional Electromyogram in the Detection of Neuromuscular Diseases

作　　者：王莲[1] 魏玲[1] 卢国良[1] 宋卫东[1] 张筱军[1] 

机构地区：[1]成都军区昆明总医院地干病房,云南昆明市650032

出　　处：《中国康复理论与实践》2010年第3期264-265,共2页Chinese Journal of Rehabilitation Theory and Practice

摘　　要：目的比较运动单位数目估计(MUNE)法和传统肌电图(EMG)在神经肌肉疾病中的诊断价值。方法应用肌电图仪中的MUNE程序和定量运动单位电位分析(QMUP)程序检测53例神经肌肉疾病患者的趾短伸肌、鱼际肌或小鱼际肌。结果8例肌萎缩性侧索硬化患者在针电极EMG检测中均为巨大电位,在MUNE检测中计数均显著减少。45例周围神经疾病患者,2例在EMG检查中无法确诊,但MUNE计数减少;2例在EMG检查中仅有自发电活动,而无肯定运动单位电位变化,MUNE计数也在正常范围内;其余41例EMG均明确显示神经源性损害,同时MUNE计数也减少。结论MUNE和传统EMG各有优缺点,两者相结合有助于提高诊断。Objective To compare the clinical significance of motor unit number estimates （MUNE） and conventional electromyogram （EMG） in the evaluation of neuromuscular disorders. Methods Under the model of MUNE or quantity of motor unit potential （QMUP）, 53 patients with various neurogenic disorders were tested with EMG at extensor digitorum brevis, thenar, or hypothenar eminence. Results For 8 patients with amyotrophic lateralizing sclerosis, large and long duration polyphasic potentials were detected in needle electrode EMG tests, and the motor unit numbers reduced. For 45 patients with peripheral neuropathies, few distinctive features could not be detected by needle electrode EMG, but motor unit numbers reduced in 2 patients; spontaneous activities were the only abnormality in the other 2 patients, and there were no obviously abnormal changes in the configuration and size of motor unit potentials and in motor unit numbers; EMG tests revealed neurogenic features and motor unit numbers significantly reduced in the remaining 41 patients. Conclusion Conventional EMG and MUNE can work for the diagnosis of neuromuscular disorders, and do better in combination.

关 键 词：运动单位数目估计 运动单位电位 神经肌肉疾病 肌电图 诊断 

分 类 号：R746.9[医药卫生—神经病学与精神病学]