Mathematical detection of aortic valve opening (B point) in impedance cardiography: A comparison of three popular algorithms

JR Árbol, P Perakakis, A Garrido, JL Mata… - …, 2017 - Wiley Online Library
The preejection period (PEP) is an index of left ventricle contractility widely used in
psychophysiological research. Its computation requires detecting the moment when the …

Toward a better noninvasive assessment of preejection period: A novel automatic algorithm for B‐point detection and correction on thoracic impedance cardiogram

M Forouzanfar, FC Baker, M de Zambotti… - …, 2018 - Wiley Online Library
Impedance cardiography is the most common clinically validated, noninvasive method for
determining the timing of the opening of the aortic valve, an important event used for …

Detection of opening and closing of the aortic valve using impedance cardiography and its validation by echocardiography

UR Bagal, PC Pandey, SMM Naidu… - Biomedical Physics & …, 2017 - iopscience.iop.org
Impedance cardiography is a noninvasive technique for estimation of stroke volume, systolic
time intervals, and some other cardiovascular indices. These estimations require error-free …

Beat-by-beat changes in pre-ejection period during functional tests evaluated by impedance aortography: a step to a left ventricular contractility monitoring

VV Ermishkin, EV Lukoshkova, EY Bersenev… - … Conference on Electrical …, 2007 - Springer
Pre-ejection period (PEP) is used as a noninvasive index of left ventricular (LV) inotropy.
PEP is conventionally defined as the interval between the onset of ECG Qwave and the …

Stability of cardiac impedance measures: Aortic opening (B-point) detection and scoring

TT Debski, Y Zhang, JR Jennings, TW Kamarck - Biological Psychology, 1993 - Elsevier
The accurate assessment of cardiac stroke volume measured by impedance cardiography
depends on the reliable measurement of dZ dt max and the accurate detection of the …

A new algorithm for improved detection of aortic valve opening by impedance cardiography

AP DeMarzo, RM Lang - Computers in Cardiology 1996, 1996 - ieeexplore.ieee.org
Impedance cardiography (ICG) is a cost-effective, noninvasive technology which is useful for
measuring systolic time intervals on the basis of bioimpedance changes in the thorax to …

The detection of impedance cardiogram characteristic points using wavelet transform

LY Shyu, YS Lin, CP Liu, WC Hu - Computers in biology and medicine, 2004 - Elsevier
A novel impedance cardiograph event detection method using wavelet transform is
proposed. When compared to the C and E points in the pressure–volume loop, the wavelet …

Automatic analysis of pre‐ejection period during sleep using impedance cardiogram

M Forouzanfar, FC Baker, IM Colrain… - …, 2019 - Wiley Online Library
The pre‐ejection period (PEP) is a valid index of myocardial contractility and beta‐
adrenergic sympathetic control of the heart defined as the time between electrical systole …

Signal processing techniques applied to impedance cardiography ICG signals–a review

S Chabchoub, S Mansouri… - Journal of Medical …, 2022 - Taylor & Francis
Over the last decade, Computer-Aided Diagnosis (CAD) systems have been provided
significant research focus by researchers. CAD systems have been developed in order to …

Detection of aortic valve opening and estimation of pre-ejection period in forcecardiography recordings

J Centracchio, E Andreozzi, D Esposito, GD Gargiulo… - Bioengineering, 2022 - mdpi.com
Forcecardiography (FCG) is a novel technique that measures the local forces induced on the
chest wall by the mechanical activity of the heart. Specific piezoresistive or piezoelectric …