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Authors: Shaun Davidson 1 ; Chris Pretty 1 ; Shun Kamoi 1 ; Thomas Desaive 2 and J. Geoffrey Chase 1

Affiliations: 1 University of Canterbury, New Zealand ; 2 University of Liège, Belgium

ISBN: 978-989-758-212-7

Keyword(s): Pressure-Volume Loops, Cardiovascular Signals, Clinical Monitoring, Stroke Work.

Related Ontology Subjects/Areas/Topics: Biomedical Engineering ; Biomedical Signal Processing ; Cardiovascular Signals ; Monitoring and Telemetry ; Real-Time Systems

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. (More)

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Paper citation in several formats:
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 Proceedings of the 10th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 4: BIOSIGNALS, (BIOSTEC 2017) ISBN 978-989-758-212-7, pages 54-63. DOI: 10.5220/0006140200540063

@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={Proceedings of the 10th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 4: BIOSIGNALS, (BIOSTEC 2017)},
year={2017},
pages={54-63},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006140200540063},
isbn={978-989-758-212-7},
}

TY - CONF

JO - Proceedings of the 10th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 4: BIOSIGNALS, (BIOSTEC 2017)
TI - A Minimally Invasive Method for Beat-by-Beat Estimation of Cardiac Pressure-Volume Loops
SN - 978-989-758-212-7
AU - Davidson, S.
AU - Pretty, C.
AU - Kamoi, S.
AU - Desaive, T.
AU - Chase, J.
PY - 2017
SP - 54
EP - 63
DO - 10.5220/0006140200540063

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