隐蔽脉搏波潮波定位研究

发布时间：2019-08-20 12:18

【摘要】：中心动脉压的临床医学意义虽大于传统肱动脉和桡动脉血压,但其推算方法一直以来受基于有创伤数据的通用转换函数(General Transform Function,GTF)的建立和桡动脉脉搏波中隐蔽潮波位置的确定的约束。提出利用公开的有创伤中心动脉数据(麻省理工学院医学院的MIMIC重症监护数据,MIT MIMIC),通过傅里叶变换获得GTF,根据中心动脉收缩压数值,结合小波变换,反推脉搏波的隐蔽型潮波位置。研究发现,桡动脉脉搏波经小波sym4和haar变换后,其各自第3阶差值波的最大值后的第6个过零点为隐蔽型潮波位置。实验结果表明,利用所提方法获得隐蔽型潮波位置的识别准确率达到91.11%。
[Abstract]:Although the clinical medical significance of central artery pressure is greater than that of traditional brachial artery and radial artery blood pressure, its calculation method has been constrained by the establishment of general conversion function (General Transform Function,GTF based on traumatic data and the determination of hidden tidal wave position in radial artery pulse wave. In this paper, the open traumatic central artery data (MIMIC intensive care data, MIT MIMIC), of MIT Medical School) are used to obtain the hidden tidal wave position of pulse wave according to the systolic pressure value of central artery and wavelet transform by Fourier transform. It is found that after the pulse wave of radial artery is transformed by wavelet sym4 and haar, the sixth zero crossing point after the maximum value of the third order difference wave is the hidden tidal wave position. The experimental results show that the recognition accuracy of hidden tidal wave position is 91.11%.
【作者单位】： 天津理工大学天津市智能计算及软件新技术重点实验室;天津理工大学计算机科学与工程学院;中国民航大学中国民航信息技术科研基地;
【基金】：天津市自然科学基金(16JCYBJC15300,15JCYBJC15800) 中国民航大学省部级科研机构开放基金(CAAC-ITRB-201603)资助
【分类号】：R318
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本文编号：2528618