中国组织工程研究

中国组织工程研究 ›› 2010, Vol. 14 ›› Issue (26): 4809-4811.doi: 10.3969/j.issn.1673-8225.2010.26.014

• 数字化骨科 digital orthopedics • 上一篇    下一篇

改进快速独立成分分析在胎儿心电提取中的应用

杜艳琴，黄  华   

  1. 四川大学医学信息工程系，四川省成都市  610065
  • 出版日期:2010-06-25 发布日期:2010-06-25
  • 通讯作者: 黄华，博士生导师，教授，四川大学医学信息工程系，四川省成都市 610065 hhua@scu. edu.cn
  • 作者简介:杜艳琴，女，1987年生，四川省南充市人，汉族，四川大学在读硕士，主要从事医学仪器与医学信号的研究。 duyanqin@126. com

Application of a modified fast independent component analysis in fetal electrocardiogram extraction  

Du Yan-qin, Huang Hua   

  1. Department of Medical Information Engineering, Sichuan University, Chengdu  610065, Sichuan Province, China
  • Online:2010-06-25 Published:2010-06-25
  • Contact: Huang Hua, Doctoral supervisor, Professor, Department of Medical Information Engineering, Sichuan University, Chengdu 610065, Sichuan Province, China hhua@scu.edu.cn
  • About author:Du Yan-qin, Studying for master’s degree, Department of Medical Information Engineering, Sichuan University, Chengdu 610065, Sichuan Province, China duyanqin@126.com

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315

被引次数

2

摘要：

背景：胎儿心电图是反映胎儿心脏电生理活动的一项客观指标，获取的胎儿心电图受到母体心电的干扰，如何快捷、有效提取出胎儿心电成为重要的研究课题。
目的：用改进的快速独立成分分析算法更快速、准确地将胎儿的心电从母体的心电信号中分离出来，以便更准确研究胎儿心电检查胎儿健康状况。
方法：建立加入松弛因子和接近性度量函数的快速独立成分分析算法，旨在观察改进后的算法与原始快速独立成分分析算法在分离母体胎儿心电信号时速度和准确性上的区别。
结果与结论：实验结果表明，改进后的快速独立成分分析方法能快速、有效从观察到的胎儿心电混合信号中分离出胎儿心电信号，且同时保留了其他信号。

关键词: 快速独立成分分析, 胎儿心电, 参考信号, 松弛因子, 数字化医学

Abstract:

BACKGROUND: Fetal electrocardiogram (FECG) is an objective index of the activities of fetal cardiac electrophysiology, but the obtained FECG is interferenced by maternal ECG. How to extract the FECG quickly and effectively has become an important research topic.
OBJECTIVE: To separate FECG signal from the mother's ECG more rapidly and accurately by using improved fast (ICA) algorithm in order to achieve a more accurate FECG examination from fetal health purposes.
METHORDS: Relaxation factor and the closeness measure function were added to fast ICA, the differences of speed and accuracy between the improved algorithm and the original ICA algorithm for rapid separation of the mother and FECG signal were observed.
RESULTS AND CONCLUSION: The simulation shows that the modified fast ICA can extract FECG from the mixed-signal quickly and efficiently and maintain the other signal simultaneously.

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