用便携式微机近实时测定血管输入阻抗

[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems Pub Date : 1990-06-03 DOI:10.1109/CBMSYS.1990.109406

C. Purut, D. Craig, J. McGoldrick, Peter K. Smith

{"title":"用便携式微机近实时测定血管输入阻抗","authors":"C. Purut, D. Craig, J. McGoldrick, Peter K. Smith","doi":"10.1109/CBMSYS.1990.109406","DOIUrl":null,"url":null,"abstract":"A method for determining vascular input impedance using a portable laptop computer coupled to more conventional laboratory measurement equipment is described. The major impediment overcome in the clinical implementation of this microcomputer-based system was the rapid Fourier transformation of pulsatile pressure and flow waveforms from time domain to frequency domain. To meet this need, software was written to allow gating of data collection and Fourier analysis in a continually repetitive, alternating manner in synchrony with the cardiac cycle. High computational speed was achieved by using a math coprocessor and limiting the Fourier analysis to hemodynamically important harmonics of heart rate.<<ETX>>","PeriodicalId":365366,"journal":{"name":"[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems","volume":"131 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1990-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Determination of vascular input impedance in near real-time using a portable microcomputer\",\"authors\":\"C. Purut, D. Craig, J. McGoldrick, Peter K. Smith\",\"doi\":\"10.1109/CBMSYS.1990.109406\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A method for determining vascular input impedance using a portable laptop computer coupled to more conventional laboratory measurement equipment is described. The major impediment overcome in the clinical implementation of this microcomputer-based system was the rapid Fourier transformation of pulsatile pressure and flow waveforms from time domain to frequency domain. To meet this need, software was written to allow gating of data collection and Fourier analysis in a continually repetitive, alternating manner in synchrony with the cardiac cycle. High computational speed was achieved by using a math coprocessor and limiting the Fourier analysis to hemodynamically important harmonics of heart rate.<<ETX>>\",\"PeriodicalId\":365366,\"journal\":{\"name\":\"[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems\",\"volume\":\"131 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1990-06-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/CBMSYS.1990.109406\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CBMSYS.1990.109406","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 4

摘要

描述了一种使用便携式笔记本电脑耦合到更传统的实验室测量设备来确定血管输入阻抗的方法。在临床实施中克服的主要障碍是基于微机的脉动压力和流量波形从时域到频域的快速傅立叶变换。为了满足这一需求，编写了软件，以允许数据收集和傅里叶分析的门控，以连续重复，交替的方式与心脏周期同步。通过使用数学协处理器并将傅里叶分析限制在心率的血流动力学重要谐波上，实现了高计算速度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Determination of vascular input impedance in near real-time using a portable microcomputer

A method for determining vascular input impedance using a portable laptop computer coupled to more conventional laboratory measurement equipment is described. The major impediment overcome in the clinical implementation of this microcomputer-based system was the rapid Fourier transformation of pulsatile pressure and flow waveforms from time domain to frequency domain. To meet this need, software was written to allow gating of data collection and Fourier analysis in a continually repetitive, alternating manner in synchrony with the cardiac cycle. High computational speed was achieved by using a math coprocessor and limiting the Fourier analysis to hemodynamically important harmonics of heart rate.<>

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems

自引率

0.00%

发文量