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System design and motion artifact removal algorithm implementation for ambulatory women ECG measurement system: E-Bra system.

机译：动态女性心电测量系统的系统设计和运动伪影去除算法的实现：E-Bra系统。

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摘要

Cardio Vascular Disease (CVD) leads to sudden cardiac death due to irregular phenomenon of the cardiac signal by the abnormal case of blood vessel and cardiac structure. For last three decades, there is an enhanced interest in research for cardiac diseases.. As a result, the death rate by cardiac disease in men has been falling gradually compared with relatively increasing the death rate for women due to CVD. The main reason for this phenomenon is due to the lack of seriousness to female CVD and different symptoms of female CVD compared with the symptoms of male CVD. Usually, because the CVDs for women accompany with ordinary symptoms not attributable to the heart abnormality signal such as unusual fatigue, sleep disturbances, shortness of breath, anxiety, chest discomfort, and indigestion dyspepsia, most women CVD patients do not realize that these symptoms are actually related to the CVD symptoms. Therefore, periodic ECG signal observation is required not only for women who have been diagnosed with heart disease but also for persons who want to examine their heart activity. Electrocardiogram (ECG) is used to diagnose abnormality of heart. Among the medical checkup methods for CVDs, it is very an effective method for the diagnosis of cardiac disease and the early detection of heart abnormality to monitor ECG periodically. This dissertation proposes an effective ECG monitoring system for woman by attaching the system on woman's brassiere by using augmented chest lead attachment method. The suggested system called "E-Bra system" in this dissertation consists of an ECG transmission system and a computer installed program called "E-Bra pro" in order to display and analyze the ECG transmitted from the transmission module. The ECG transmission module consists of three parts such as ECG physical signal detection part with 3 stage amplifier and two electrodes, data acquisition with AD converter, and data transmission part with GPRS (General Packet Radio Service) communication, and it has very compact size that is attachable at the bottom layer of a brassiere for women. However, the ECG signal measured from the transmission module includes not only pure ECG components information; P waves QRS complex, and T wave, but also a motion artifact component (MA) due to subject movements. The MA component is one of the reasons for misdiagnosis. Therefore, the main purpose of the E-Bra system is to provide a reliable ECG data set identical to the quality of an ECG data set collected in hospital. Unfortunately, removing MA is a big challenge because the frequency range of the MA is duplicated on the frequency range of the pure ECG components, P-QRS-T. In this dissertation, two motion artifact removal algorithms (MARAs) with adaptive filter structure and independent component analysis concept are suggested, and the performance of the two MARAs will be evaluated by correlation values and signal noise ratio (SNR) values.
机译：心血管疾病（CVD）由于血管和心脏结构异常引起的心脏信号异常现象而导致心脏猝死。在过去的三十年中，人们对心脏疾病的研究兴趣日益增强。结果，与心血管疾病导致的女性死亡率相对上升相比，男性心脏疾病的死亡率已逐渐下降。造成这种现象的主要原因是由于对女性CVD的缺乏重视以及女性CVD与男性CVD的症状不同。通常，由于女性的CVD伴随着并非由心脏异常信号引起的普通症状，例如异常的疲劳，睡眠障碍，呼吸急促，焦虑，胸部不适和消化不良，因此大多数女性CVD患者并未意识到这些症状是实际上与CVD症状有关。因此，不仅对于诊断出患有心脏病的女性，而且对于想要检查其心脏活动的人，都需要定期进行ECG信号观察。心电图（ECG）用于诊断心脏异常。在心血管疾病的体检方法中，定期监测心电图是诊断心脏病和早期发现心脏异常的非常有效的方法。本文提出了一种通过增强胸部导联方法将女性心电图监测系统安装在女性胸罩上的有效方法。本文所建议的系统称为“ E-Bra系统”，由一个ECG传输系统和一个计算机安装的程序“ E-Bra pro”组成，以显示和分析从传输模块传输的ECG。 ECG传输模块由三部分组成：具有三级放大器和两个电极的ECG物理信号检测部分，具有AD转换器的数据采集部分以及具有GPRS（通用分组无线服务）通信的数据传输部分，并且其尺寸非常紧凑，可固定在女士胸罩的底层。但是，从传输模块测得的ECG信号不仅包括纯ECG组件信息，还包括单个ECG组件信息。 P挥动QRS复波，T挥动，但也由于对象运动而产生运动伪影分量（MA）。 MA组件是错误诊断的原因之一。因此，E-Bra系统的主要目的是提供与医院收集的ECG数据集质量相同的可靠ECG数据集。不幸的是，去除MA是一个巨大的挑战，因为MA的频率范围在纯ECG组件P-QRS-T的频率范围上是重复的。本文提出了两种具有自适应滤波器结构和独立分量分析概念的运动伪像去除算法，并将通过相关值和信噪比（SNR）值对两种算法的性能进行评估。

著录项

  • 作者

    Kwon, Hyeokjun.;

  • 作者单位

    University of Arkansas.;

  • 授予单位 University of Arkansas.;
  • 学科 Engineering Biomedical.;Engineering Electronics and Electrical.
  • 学位 Ph.D.
  • 年度 2013
  • 页码 129 p.
  • 总页数 129
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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