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| 肺动脉压无创伤估测系统及其应用价值研究 | |
| 引用本文： | 王威琪,陈树宝,汪源源,刘斌,张玉奇,余建国,孙锟,陈斯中.肺动脉压无创伤估测系统及其应用价值研究[J].中国工程科学,2000,2(1):41-46. |
| 作者姓名： | 王威琪 陈树宝 汪源源 刘斌 张玉奇 余建国 孙锟 陈斯中 |
| 作者单位： | 1. 复旦大学电子工程系,上海,200433 2. 上海第二医科大学新华医院,上海,200093;上海儿童医学中心,上海,200120 3. 上海儿童医学中心,上海,200120 |
| 摘 要： | 肺动脉压是临床诊断、生理研究的一项重要指标，常规采用有创伤的心导管术测量。文章提出了一种基于超声和心电的无创伤估测方法，研制了肺动脉压无创伤估测系统。文中报告了所用的关键技术要点，动物实验和临床试用。所用的关键技术是小波变换降噪；新型百分比法提取声谱包络；小波变换识别定位超声；心电信号特征点。经9条狗的动物实验和60例临床试用，与心导管术相关性在80%以上。 |
| 关 键 词： | 肺动脉压 无创伤估测 小波变换 降噪 包络 特征点 |
| 修稿时间： | 1999年7月12日 |
A Non-invasive Evaluation System for Pulmonary Artery Pressure and its Application Value |
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| wangweiqi,chenshubao,wangyuanyuan,liubin,zhangyuqi,yujianguo,sunkun and chensizhong.A Non-invasive Evaluation System for Pulmonary Artery Pressure and its Application Value[J].Engineering Science,2000,2(1):41-46. | |
| Authors: | wangweiqi chenshubao wangyuanyuan liubin zhangyuqi yujianguo sunkun and chensizhong |
| Abstract: | Pulmonary artery pressure is an important parameter for clinical diagnosis and physiological research.It used to be measured by the traditional invasive method,cardiac catheterization. A non\|invasive method based on audio pulsed\|wave Doppler signal and ECG is presented and the noninvasive evaluation system is developed.The key techniques,animal experiment and clinical probation are described in this paper.The key techniques include:wavelet de\|noising,new percentile method as well as locating characteristic point with wavelet.According to the data obtained from animal experiments of 9 dogs and 60 cases,the relativity with cardiac catheterization exceeds 80%. |
| Keywords: | pulmonary artery pressure non\|invasive evaluation wavelet de\|noising envelope curve characteristic point |
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