首页> 外文学位 >文献详情
【24h】

Design of a wireless bio-telemetric device for measurement of left ventricular pressure-volume loops using the admittance technique in conscious, ambulatory rats.

机译:一种无线生物遥测设备的设计,该设备使用导纳技术在有意识的非卧床大鼠中测量左心室压力-容积环。

获取原文
获取原文并翻译 | 示例

摘要

Left ventricular (LV) volume analysis in small animals has proven difficult because of the small size of the hearts and the rapid heart rate. Furthermore, there is a substantial contribution to the signal from both the blood as well as the muscle. Admittance - based measurement techniques has been proven effective in eliminating the muscular component and estimating the blood component accurately. The key factor that makes this measurement effective is the fact that the measurement is made in the complex plane, which measures both the magnitude as well as the phase of the complex phasor. This dissertation presents the design of a wireless telemetric device that measures impedance magnitude and phase measurements along with pressure from conscious, ambulatory rats. Using this impedance data along with other calibration data such as blood resistivity, stroke volume etc., volume is determined.
机译:小动物的左心室(LV)体积分析已被证明是困难的,因为它的心脏很小并且心跳加快。此外,对于来自血液以及肌肉的信号也有很大的贡献。已证明基于导纳的测量技术可有效消除肌肉成分并准确估算血液成分。使得该测量有效的关键因素是在复平面中进行测量的事实,该复平面测量了复相量的大小和相位。本文提出了一种无线遥测设备的设计,该设备可以测量阻抗幅度和相位测量值以及有意识的非运动大鼠的压力。使用该阻抗数据以及其他校准数据(例如血液电阻率,中风量等),即可确定体积。

著录项

  • 作者

    Raghavan, Karthik.;

  • 作者单位

    The University of Texas at Austin.;

  • 授予单位 The University of Texas at Austin.;
  • 学科 Engineering Biomedical.;Engineering Electronics and Electrical.
  • 学位 Ph.D.
  • 年度 2009
  • 页码 133 p.
  • 总页数 133
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 R318;TN;
  • 关键词

  • 入库时间 2022-08-17 11:38:11

相似文献

  • 外文文献
  • 中文文献
  • 专利
站内服务
  • 写作辅导
  • 期刊发表
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号