一种心磁图信号采集与分析软件系统  

System for Acquiring and Analyzing Software of Magnetocardiogram Signals

作　　者：董继伟[1] 宋现涛[2] DONG Jiwei;SONG Xiantao(Department of Medical Engineering,Beijing Anzhen Hospital,Capital Medical University,Beijing 100029,China;Department of Cardiology,Beijing Anzhen Hospital,Capital Medical University,Beijing 100029,China)

机构地区：[1]首都医科大学附属北京安贞医院医学工程处,北京100029 [2]首都医科大学附属北京安贞医院心内科,北京100029

出　　处：《中国医疗设备》2023年第11期38-43,共6页China Medical Devices

基　　金：国家863计划(2007AA03Z238);国际科技合作项目(2008DFR30570);北京市科技新星交叉合作课题(20220484222)。

摘　　要：目的介绍一种心磁图信号采集与分析软件系统,以实现对心磁图的智能判读。方法通过对微控制系统控制程序、心磁信号采集及预分析处理程序的设计,形成系统初始化处理模块;通过对偶极子源模型解析程序和心脏场源模型解析程序的设计,形成软件系统场源时空分布分析模块;通过对人工智能判读算法的开发,形成软件系统智能判读结果自动输出模块;通过对心磁数据存储程序及心磁数据库功能的设计,形成软件系统存储模块。基于上述4大模块,形成了心磁图信号采集与分析软件系统。结果该系统能够进行心磁信号的采集、预分析处理、场源时空特征分布分析、心磁图智能判读及输出,以及心磁数据存储。心磁图信号采集与分析软件进行了67例冠心病患者和21名健康受试者的测试,结果表明,冠心病诊断敏感度为88.06%,特异性为80.96%。结论该系统可实现心磁图仪的底层硬件自动控制,以及心磁图信号采集和智能判读,有助于提升心磁图仪硬件运行一致性,同时可以辅助提高心脏病诊断准确度及诊断效率,具有重要的临床应用价值。Objective To introduce a system for acquiring and analyzing software of magnetocardiogram signals,to realize intelligent interpretation of magnetocardiogram.Methods By designing the control program of the micro-control system,the magnetocardiogram data acquisition program and the signal pre-analysis and processing program,the software system initialization processing module was formed.Though the design of dipole source model analysis program and the heart field source model analysis program,the software system field source space-time distribution analysis module was formed.By developing the artificial intelligence interpretation algorithm,the intelligent interpretation module of software system was formed.Through the design of magnetocardiogram data storage program and the function of magnetocardiogram database,the software system storage module was formed.Based on the above four modules,the system for acquiring and analyzing software of magnetocardiogram signals was completed.Results The system could collect,pre-analyze and process the magnetocardiogram signal,analyze the spatiotemporal distribution of the field source,intelligent interpretation and output of magnetocardiogram,and store the magnetocardiogram data.The magnetocardiogram signal acquiring and analyzing software was tested on 67 patients with coronary heart disease and 21 healthy subjects.The results showed that the diagnostic sensitivity of coronary heart disease was 88.06%,and the specificity was 80.96%.Conclusion The system can realize the automatic control of the underlying hardware,the cardiac magnetic field acquiring and intelligent interpretation of magnetocardiogram,which helps to improve the consistency of hardware operation of magnetocardiogram,and can also assist in improving the accuracy and efficiency of heart disease diagnosis,and has important clinical application value.

关 键 词：心磁图 软件系统 智能判读 电流密度 人工智能 

分 类 号：R197.39[医药卫生—卫生事业管理] R318[医药卫生—公共卫生与预防医学]