Results 61 to 70 of about 1,711 (182)

A Concept for Myocardial Current Density Estimation with Magnetoelectric Sensors

Current Directions in Biomedical Engineering, 2023
In this paper we present a novel noninvasive approach to estimate current densities in the heart from magnetocardiography. The proposed algorithm uses nested optimization to model current densities in equally-sized voxels of myocardial tissue.
Engelhardt Erik, Elzenheimer Eric, Hoffman Johannes, Schmidt Tobias, Zaman Adrian, Frey Norbert, Schmidt Gerhard   +6 more
doaj   +1 more source

Heart failure during adjuvant therapy for breast cancer: A case report

Malignancy Spectrum, Volume 2, Issue 2, Page 110-115, June 2025.
Cardiotoxicity of HER2‐targeted drugs can lead to reduced ejection fraction, which was reversible with the administration of ARNi and SGLT2i. Optical pumped magnetometer‐magnetocardiography (OPM‐MCG) can act as a safe, accurate, and efficient evaluation tool for cardiotoxicity monitoring in cancer patients.
Huan Zhang, Zhao Ma, Shuwen Yang, Linqi Liu, Shu Zhou, Lanxin Feng, Ran Ran, Wenyang Liu, Chenchen Tu, Xiantao Song, Hongjia Zhang   +10 more
wiley   +1 more source

Atrioventricular conduction abnormalities are associated with poor outcome following intermittent umbilical cord occlusions in fetal sheep

Acta Obstetricia et Gynecologica Scandinavica, Volume 104, Issue 6, Page 1207-1217, June 2025.
Continuous electrocardiographic monitoring of fetal sheep heart during intermittent umbilical cord occlusions gradually leading to severe metabolic acidemia revealed several fetal arrhythmias including atrioventricular block, ventricular tachycardia, and ventricular fibrillation that would have gone unnoticed with current fetal monitoring systems ...
Juulia Lantto, Jonas Johnson, Heikki Huhta, Mervi Haapsamo, Panu Kiviranta, Kati Räsänen, Hanna‐Marja Voipio, Sven‐Erik Sonesson, Juha Voipio, Juha Räsänen, Ganesh Acharya   +10 more
wiley   +1 more source

Antenatal fetal magnetocardiography: a new method for fetal surveillance?

, 1994
Objective To establish the reliability of fetal magnetocardiography as a method of measuring the time intervals of the fetal heart during the antenatal period. Design A prospective study.
Shahani, Uma; id_orcid, Donaldson, Gordon, Uma Shahani, Maas, Peter, Andrew Weir, Rhoderick Bain, Peter Maas, Quinn, Andrew, Bain, Rhoderick, Gordon Donaldson, Weir, Andrew, Andrew Quinn   +11 more
core   +1 more source

Gradient-Based Optimization of All-Pass Filter Networks for Non-Invasive Electroanatomical Mapping

IEEE Access
Existing approaches to non-invasive electroanatomical mapping face a fundamental challenge: accurately representing the continuous propagation velocities crucial for cardiac arrhythmia localization.
Erik Engelhardt, Johannes Hoffmann, Moritz Boueke, Lukas Elsner, Marius Leye, Norbert Frey, Gerhard Schmidt   +6 more
doaj   +1 more source

Fetal Heart Rate Analysis in Pregnancies Complicated by Gestational Diabetes Mellitus: A Prospective Multicentre Observational Study

BJOG: An International Journal of Obstetrics &Gynaecology, Volume 132, Issue 4, Page 473-482, March 2025.
ABSTRACT Objective Establish whether pregnancies complicated by gestational diabetes mellitus (GDM) are associated with a fetal cardiac phenotype that predisposes to arrhythmia; utilising measurements derived from non‐invasive abdominal fetal ECG. Design Prospective observational study.
Sian Chivers, Caroline Ovadia, Tharni Vasavan, Maristella Lucchini, Barrie Hayes‐Gill, Nicolò Pini, William Paul Fifer, Catherine Williamson   +7 more
wiley   +1 more source

Electrocardiographic imaging metrics to predict the risk of arrhythmia in patients with ischemic cardiomyopathy

Journal of Arrhythmia, Volume 41, Issue 1, February 2025.
ECGi‐specific studies for assessment of arrhythmic risk in ischemic heart disease. Studies specifically using ECGi have identified several metrics that may be associated with ventricular arrhythmia risk in patients with ischemic cardiomyopathy. ARI, activation‐recovery interval; AT, activation time; ICM, ischemic cardiomyopathy; LV, left ventricle; MI,
Azizah Puspitasari Ardinal, Holly P. Morgan, Mark Elliott, Martin Bishop, Christopher Aldo Rinaldi, Divaka Perera   +5 more
wiley   +1 more source

Comparison of magnetocardiography and electrocardiography: a study of automatic measurement of dispersion of ventricular repolarization [PDF]

, 2006
Aims There is some dispute over the clinical significance of dispersion of ventricular repolarization measurements from the electrocardiogram. Recent studies have indicated that multichannel magneto-cardiograms (MCGs), which non-invasively measure ...
Philip Langley, Fiona E. Smith, Uwe Steinhoff, Lutz Trahms, Alan Murray, Peter Van Leeuwen, John P. Bourke, Birgit Hailer   +7 more
core   +1 more source

Depressive symptoms and heart rate variability in perinatal women: A narrative review

Japan Journal of Nursing Science, Volume 22, Issue 1, January 2025.
Abstract Aim This study aims to review research on heart rate variability and psychiatric symptoms in perinatal women and explains how heart rate variability can be useful in preventing depressive symptoms in perinatal women. Methods Data were collected from PubMed, CINAHL, PsycINFO, and Google Scholar.
Taeko Unno, Hisayo Okayama
wiley   +1 more source

The Effects of 10-week Deep Water Running with vest on Aerobic Fitness and magnetocardiography of the Female Middle-Age

, 2011
[[abstract]]The Effects of 10-week Deep Water Running with vest on Aerobic Fitness and magnetocardiography of the Female Middle-Age. 2007 Oct Hsu, Ching-Yi Advisor: Fang, Chin-Lung ...
Hsu,Ching-Yi, 許靜宜
core