脉图时域特征提取方法研究现状及改进策略  

Research Status and Improvement Strategies of Pulse Waveform Feature Extraction Methods in Time-Domain

作　　者：丁晓东 陈聪 洪静 郝一鸣[1] 王忆勤[1] Ding Xiaodong;Chen Cong;Hong Jing;Hao Yiming;Wang Yiqin(School of Basic Medical Science,Shanghai University of Traditional Chinese Medicine,Shanghai 201203,China)

机构地区：[1]上海中医药大学基础医学院,上海201203

出　　处：《世界科学技术-中医药现代化》2020年第6期2043-2049,共7页Modernization of Traditional Chinese Medicine and Materia Medica-World Science and Technology

基　　金：国家自然科学基金委员会面上基金项目(81673880):基于中医四诊大数据的冠心病风险评估与预测模型研究,负责人:王忆勤;上海市科学技术委员会上海市重点实验室(13DZ2261000):上海市健康辨识与评估重点实验室建设经费,负责人:王忆勤。

摘　　要：随着中医脉诊客观化研究的不断深入,桡动脉脉搏波的时域特征以其直观方便的优势得到了广泛的应用,如何更准确地提取这些特征也就变得至关重要。本研究总结了目前常用的脉搏波时域特征提取方法,结合临床应用研究现状分析了其优势与不足,并探讨了改进策略,为进一步提高脉象时域特征提取的准确性提供了参考。针对非典型脉搏波降中峡易识别错误,本研究提出了脉搏波一次导数的极小值可以作为降中峡提取标志的假说,并通过285例临床样本进行算法验证,达到了95.09%的正确率。With the deepening of the objective study of pulse diagnosis in traditional Chinese medicine,the timedomain features of wrist pulse waveform have been widely used with its advantages of intuitive and convenient,and how to extract these features more accurately becomes very important.This paper summarizes the current mainstream methods of pulse waveform feature extraction in time-domain,and illustrates their advantages and disadvantages in combination with the actual clinical application,as well as the direction of further improvement,which provides a reference for further improving the accuracy of pulse waveform feature extraction in time-domain.In view of the situation that the dicrotic notch of atypical pulse waveform is easy to be misidentified,a hypothesis is put forward that the minimum value of the first derivative of pulse wave can be used as the extraction mark of the dicrotic notch.285 clinical samples are used to verify the hypothesis,achieve an accuracy rate of 95.09%.

关 键 词：脉象 客观化 时域 特征提取 降中峡 

分 类 号：R33[医药卫生—人体生理学]