Parameter optimization method for less-invasive and beat-by-beat estimation of Emax

Makoto Yoshizawa, Shozo Iemura, Ken ichi Abe, Hiroshi Takeda, Yoshito Kakinuma, Hiroshi Akiho, Tomoyuki Yambe, Shin ichi Nitta

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)

Abstract

A new method for less-invasive and beat-by-beat estimation of the maximum ventricular elastance (Emax) has been proposed. The method (parameter optimization method) needs only two measurements: aortic pressure and flow. In the estimation process, least squares method was applied to an identity equation based on a simple electrical circuit model of the systemic circulation. In the model, the left ventricular elastance was approximated by a linear time function. In vivo experiments using an adult goat yielded small estimation errors of aortic flow less than about 1.5 L/min. Stability of estimation was also good.

Original languageEnglish
Pages (from-to)1326-1327
Number of pages2
JournalAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Volume3
Publication statusPublished - 1996 Dec 1
EventProceedings of the 1996 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 4 (of 5) - Amsterdam, Neth
Duration: 1996 Oct 311996 Nov 3

ASJC Scopus subject areas

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

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