北京生物醫(yī)學(xué)工程

基于二次樣條小波的P波檢測方法

A New Algorithm of P-wave Detection Using Quadratic Spline Wavelet

作者：廖云朋劉曼

單位：深圳市理邦精密儀器有限公司（廣東深圳518067）

關(guān)鍵詞：二次樣條小波；心電圖；P波檢測

分類號：

出版年·卷·期（頁碼）：2010·29·3（266-269）

摘要：

為了能夠準(zhǔn)確地檢測P波，本文應(yīng)用二次樣條小波變換的方法，在特定的分解尺度上，尋找QRS波前搜索窗內(nèi)的極值對信息，再在極值對之間尋找極值點即為P波的頂點，最后根據(jù)P波的頂點位置，在其左右利用局部變換的方法實現(xiàn)對起止點的最終定位。二次樣條小波變化的方法，能夠很好地避開漂移、高頻等噪聲的干擾。利用CSE標(biāo)準(zhǔn)數(shù)據(jù)庫定量的衡量P波檢測的準(zhǔn)確度，平均偏差為-0.7ms，標(biāo)準(zhǔn)偏差為7.7ms，大大提高了P波定位的準(zhǔn)確性，為心電圖自動分析的準(zhǔn)確性提供了保障。

In order to detect P-wave accurately, this paper adopts the method of quadratic spline wavelet to detect the P-wave. Firstly，we selected one wavelet scale, and found the pair of maximum-minimum within the search window on that scale in QRS wave. And then we decided the peak of P-wave between the pair. Lastly, using the partial transformation method in P-wave’s left and right, we located the onset and offset of the P-wave according to the peak position. The algorithm of quadratic spline wavelet may reduce the disturbance from the baseline drift and the high frequency. The performance quantitative analyzed by the CSE database was showed with the result of averaged difference being -0.7ms and the standard deviation being 7.7ms. The algorithm improves the detection veracity, and ensures the analysis and interpretation of ECG.

參考文獻：

［1］Freeman K, Singh A. P wave detection of ambulatory ECG. Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 1991, 13(2): 0647.
［2］Escalona O, Cavidia L, Writhr G. A robust procedure for P wave detection and segmentation in high resolution 12-lead ECG. 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Amsterdam, 1996, 5(4): 1365.
［3］Murthy ISN. Analysis of ECG from polezero models. IEEE TRANS on BME, 1992, 39(7):741.
［4］余輝，張凱，呂揚生. 二次微分小波在心電圖QRS波檢測中的應(yīng)用. 中國醫(yī)療器械雜志,2001,25(6)：334-337.
［5］田學(xué)隆，閆春紅，余亞青. 基于小波變換的R波檢測算法. 生物醫(yī)學(xué)工程學(xué)雜志,2006, 23(2): 257-261.
［6］邱雅竹，丁顯峰，馮俊. 基于Mexican-hat小波的QRS檢測新方法. 生物醫(yī)學(xué)工程學(xué)雜志,2006, 23(6): 1347-1349.
［7］Li CW,Zheng CX,Tai CF. Detection of ECG characteristic points using wavelet transforms. IEEE Transactions on Biomedical Engineering, 1995, 42(1):21-29.
［8］International Electrotechnical Commission.International Standard IEC 60601-2-51: 2003 Medical electrical equipment -- Part 2-51: Particular requirements for safety, including essential performance, of recording and analysing single channel and multichannel electrocardiographs.IEC Publication,2003:14-81.
［9］Willems JL.CSE Project－CSE Multilead Atlas.CSE Publication,1988: 3-78.

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