一种可视化心音教学系统的设计  

Design of Visualized Heart Sound Diagnosis Teaching System

作　　者：全雪峰[1] 黄文海[1] 常梦星[1] 

机构地区：[1]南阳医学高等专科学校卫生管理系,河南南阳473061

出　　处：《医疗卫生装备》2013年第1期15-18,共4页Chinese Medical Equipment Journal

基　　金：教育部高职高专计算机类专业2011年度规划课题(jzw590111059)

摘　　要：目的:设计一种可视化心音诊断教学系统,帮助初学者从"听"和"视"2个方面来学习和掌握不同心音的特点。方法:系统首先将读入的信号用fir滤波器进行滤波,之后采用S变换提取信号包络,并分别从ARMA双谱分析、CWD分布2个不同方面进行分析,来提取心音信号的三维特征,以Delphi为开发平台,结合第3方组件DewLab Studio、AudioLab、PlotLab,以及Python语言进行系统开发。结果:设计的系统能够采集、显示、处理、存储心音信号。结论:该系统从可视、可听2个方面改进心音教学效果,系统简单、经济、功能较强,适合心音诊断教学。Objective To design a visualized heart sound diagnosis teaching system to help the beginners to master the features of the heart sounds by acoustic and visual means. Mothods The read-in signals were filtered by fir filter, then the signal envelope was extracted by S transform, and the analyses were performed from the aspects of ARMA bispectrum and CWD distribution to obtain 3D features of the heart sound signals. With Delphi as the platform, the third-party components such as DewLab Studio, AudioLab, PlotLab and Python, were used to develop the system. Results The designed system could acquire, display, process and store heart sound signals. Conoluaioa The visualized system can be used for heart sound diaznosis teachinz.[Chinese Medical Equipment Journal, 2013,34（1 ） ： 15-18]

关 键 词：心音诊断 可视化 教学系统 DELPHI 

分 类 号：TP391.6[自动化与计算机技术—计算机应用技术] TN911.7[自动化与计算机技术—计算机科学与技术]