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Towards Estimations of Continuous Cardiac Output with Impedance Cardiography: a Pilot Study

Authors:
Chao-Ting Liu
Po-Hsun Huang
Tzu-Chien Hsiao

Keywords: Impedance Cardiography (ICG); Cardiac Output (CO); Stroke Volume (SV)

Abstract:
Impedance Cardiography (ICG) is a non-invasive method to estimate the cardiac output, which is very helpful for the prognosis of cardiovascular disease and the diagnosis of disease. By applying a stable high-frequency and low-intensity current to the human, we can measure the impedance variation of the human body, and, therefore, get the ICG signal to judge the possible characteristic points and estimate the cardiac output. The measurement of ICG in long-term care is limited due to the cost involved and the need for professional evaluation. For this reason, in this paper, we develop an impedance signal measurement system suitable for long-term care. We use a modified circuit system and LabVIEW software to detect the impedance variation of the human body and the characteristic points of ICG. At present, our preliminary results have been able to detect possible points B and C, for the detection of point X. We need to compare and confirm these results using Electrocardiography (ECG). In the future, we will use the feature points detected by this system to estimate the cardiac output and develop it into a portable instrument for long-term care.

Pages: 115 to 118

Copyright: Copyright (c) IARIA, 2020

Publication date: March 22, 2020

Published in: conference

ISSN: 2308-4359

ISBN: 978-1-61208-763-4

Location: Valencia, Spain

Dates: from November 21, 2020 to November 25, 2020