ImpediBands: Body coupled bio-impedance patches for physiological sensing proof of concept

K Sel, B Ibrahim, R Jafari - IEEE Transactions on Biomedical …, 2020 - ieeexplore.ieee.org
Continuous and robust monitoring of physiological signals is essential in improving the
diagnosis and management of cardiovascular and respiratory diseases. The state-of-the-art …

Analog realization of fractional-order skin-electrode model for tetrapolar bio-impedance measurements

V Alimisis, C Dimas, G Pappas, PP Sotiriadis - Technologies, 2020 - mdpi.com
This work compares two design methodologies, emulating both AgCl electrode and skin
tissue Cole models for testing and verification of electrical bio-impedance circuits and …

Pulse wave modeling using bio-impedance simulation platform based on a 3D time-varying circuit model

B Ibrahim, DA Hall, R Jafari - IEEE transactions on biomedical …, 2021 - ieeexplore.ieee.org
Cardiovascular disease (CVD) threatens the lives of many and affects their productivity.
Wearable sensors can enable continuous monitoring of hemodynamic parameters to …

A wrist-worn respiration monitoring device using bio-impedance

K Sel, A Brown, H Jang, HM Krumholz… - 2020 42nd Annual …, 2020 - ieeexplore.ieee.org
In the US alone, 22 million individuals suffer from obstructive sleep apnea (OSA), with 80%
of the cases symptoms undiagnosed. Hence, there is an unmet need to continuously and …

Radial artery pulse wave estimation by compressed sensing measurements of wrist bio-impedance

J Kromka, J Saliga, O Kovac, L De Vito, F Picariello… - Measurement, 2023 - Elsevier
In this paper, a Compressive Sampling (CS) based measurement method of the Bio-
Impedance (Bio-Z) variation at the wrist, due to the blood flow inside of radial artery, is …

Performance prediction, sensitivity analysis and parametric optimization of electrical impedance tomography using a bioelectrical tissue simulation platform

M Zheng, B Ibrahim - … Conference of the IEEE Engineering in …, 2021 - ieeexplore.ieee.org
There is an urgent need to bring forth portable, low-cost, point-of-care diagnostic instruments
to monitor patient health and wellbeing. This is elevated by the COVID-19 global pandemic …

SPICE and MATLAB simulation and evaluation of Electrical Impedance Tomography readout chain using phantom equivalents

C Dimas, V Alimisis, PP Sotiriadis - … European Conference on …, 2020 - ieeexplore.ieee.org
Electrical Impedance Tomography (EIT) is an imaging technique which has gained
popularity in both the medical and industrial process fields. A small amplitude sinusoidal …

Analysis, Simulation, and Development of a Low-Cost Fully Active-Electrode Bioimpedance Measurement Module

C Dimas, V Alimisis, I Georgakopoulos, N Voudoukis… - Technologies, 2021 - mdpi.com
A low-cost 1 kHz–400 kHz operating frequency fully-active electrode bioimpedance
measurement module, based on Howland current source, is presented in this paper. It …

Real-time Signal-to-Noise Ratio Optimization of Bio-Impedance Signal for Cuffless Blood Pressure Monitoring

B Passage, B Ibrahim, R Jafari - 2021 43rd Annual International …, 2021 - ieeexplore.ieee.org
Continuous and unobtrusive blood pressure (BP) monitoring provides significant
advantages in predicting the onset of cardiovascular disease. Bio-impedance sensing is a …

High Linearity Techniques for Analog Filters, Built-in Testing and Impedance Spectroscopy in Scaled CMOS Technologies

HMAM Osman - 2020 - oaktrust.library.tamu.edu
With the advances in CMOS technology, the minimum feature sizes and the threshold
voltage of the transistors are continuing to scale down. This scaling down allows an …