A Minimally Invasive Method for Beat-by-Beat Estimation of Cardiac Pressure-Volume Loops

Shaun Davidson, Chris Pretty, Shun Kamoi, Thomas Desaive, J. Geoffrey Chase

2017

Abstract

This paper develops a minimally invasive means of estimating a patient-specific cardiac pressure-volume loop beat-to-beat. This method involves estimating the left ventricular pressure and volume waveforms using clinically available information including heart rate and aortic pressure, supported by a baseline echocardiography reading. Validation of the method was performed across an experimental data set spanning 5 Piétrain pigs, 46,318 heartbeats and a diverse clinical protocol. The method was able to accurately locate a pressure-volume loop, identifying the end-diastolic volume, end-systolic volume, mean-diastolic pressure and mean-systolic pressure of the ventricle with reasonable accuracy. While there were larger percentage errors associated with stroke work derived from the estimated pressure-volume loops, there was a strong correlation (average R value of 0.83) between the estimated and measured stroke work values. These results provide support for the potential of the method to track patient condition, in real-time, in a clinical environment. This method has the potential to yield additional information from readily available waveforms to aid in clinical decision making.

Paper Citation

in Harvard Style

Davidson S., Pretty C., Kamoi S., Desaive T. and Chase J. (2017). A Minimally Invasive Method for Beat-by-Beat Estimation of Cardiac Pressure-Volume Loops. In - BIOSIGNALS, (BIOSTEC 2017) ISBN , pages 0-0. DOI: 10.5220/0006140200001488

in Bibtex Style

@conference{biosignals17,
author={Shaun Davidson and Chris Pretty and Shun Kamoi and Thomas Desaive and J. Geoffrey Chase},
title={A Minimally Invasive Method for Beat-by-Beat Estimation of Cardiac Pressure-Volume Loops},
booktitle={ - BIOSIGNALS, (BIOSTEC 2017)},
year={2017},
pages={},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006140200001488},
isbn={},
}

in EndNote Style

TY - CONF

JO - - BIOSIGNALS, (BIOSTEC 2017)
TI - A Minimally Invasive Method for Beat-by-Beat Estimation of Cardiac Pressure-Volume Loops
SN -
AU - Davidson S.
AU - Pretty C.
AU - Kamoi S.
AU - Desaive T.
AU - Chase J.
PY - 2017
SP - 0
EP - 0
DO - 10.5220/0006140200001488