两种膈肌电信号处理方法对气道阻塞状态下呼吸中枢评价的准确性比较研究

发布时间：2019-06-19 17:38

【摘要】：目的比较膈肌肌电均方根(RMSdi)与积分肌电值(i EMGdi)两种膈肌电信号处理方法对气道阻力增加状态下呼吸中枢评价的准确性。方法选择2015年1-6月广州12名健康志愿者,接受不同程度的吸气阻力,并测量膈肌肌电以及跨膈压,膈肌肌电分别采用均方根和积分值处理,两种算法得出的结果分别与吸气跨膈压作相关性分析,比较其相关系数。结果在低、中、高水平吸气阻力时,膈肌肌电均方根与吸气跨膈压之间的相关系数分别为0.198,0.141及0.569(P=0.054),均无相关性(均P0.05);而3个阻力下的积分肌电值与吸气跨膈压之间的相关系数分别为0.896,0.885及0.876,均存在明显相关性(均P0.01)。结论吸气阻力存在时,积分肌电值比膈肌肌电均方根更能准确地评价呼吸中枢的吸气努力程度。
[Abstract]:Objective to compare the accuracy of diaphragm EMG root mean square (RMSdi) and integral EMG (i EMGdi) in evaluating respiratory center with increased airway resistance. Methods Twelve healthy volunteers in Guangzhou from January to June 2015 were selected to receive different degrees of inspiratory resistance, and diaphragm EMG and transphrenic pressure were measured by root mean square (root mean square) and integral values, respectively. the results obtained by the two algorithms were correlated with inspiratory transphrenic pressure, and the correlation coefficients were compared. Results at low, middle and high inspiratory resistance, the correlation coefficients between the root mean square root of diaphragm and inspiratory transphrenic pressure were 0.198,0.141 and 0.569 (P 鈮，

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