Results 71 to 80 of about 1,500 (190)

Non-Invasive Mapping of Ventricular Action Potential Reconstructed from Contactless Magnetocardiographic Recordings in Intact and Conscious Guinea Pigs

Journal of Cardiovascular Development and Disease
Optical mapping, nanotechnology-based multielectrode arrays and automated patch-clamp allow transmembrane voltage mapping with high spatial resolution, as well as L-type calcium and inward rectifier currents measurements using native mammalian ...
Riccardo Fenici, Marco Picerni, Peter Fenici, Donatella Brisinda   +3 more
doaj   +1 more source

A 90-second magnetocardiogram using a novel analysis system to assess for coronary artery stenosis in Emergency department observation unit chest pain patients

International Journal of Cardiology: Heart & Vasculature, 2020
Background: Magnetocardiography (MCG) has been shown to non-invasively detect coronary artery stenosis (CAS). Emergency department (ED) patients with possible acute coronary syndrome (ACS) are commonly placed in an observation unit (OU) for further ...
Margarita E. Pena, Claire L. Pearson, Marc P. Goulet, Viviane M. Kazan, Alexandra L. DeRita, Susan M. Szpunar, Robert B. Dunne   +6 more
doaj   +1 more source

Future Topics in Fetal Magnetocardiography

, 2007
this paper is to review the status of fetal magnetocardiography today and to delineate the topics with which we will be preoccupied in the future. The following subjects will be discussed: instrumentation, modeling, data acquisition and analysis in ...
Van Leeuwen Dept
core  

Adaptive frequency dependent gradiometer applied to magnetocardiography

, 2003
In the case of magnetocardiography (MCG), gradiometry is a commonly used method to reduce environmental noise. Here, the balance of the gradiometer is one of the main parameters determining the achievable noise reduction. In earlier work, we reported the
Panaitov, G., Bick, M., Schiek, M., Zhang, Y., Krause, H.-J.   +4 more
core   +1 more source

Advances in Fetal Magnetocardiography Using SERF Atomic Magnetometers

, 2017
PhD Thesis, 2017Description of experiments and results pertaining to the development of a 4x2 channel atomic magnetometer array for use in detection of fetal magnetocardiography signals.NIH R01 ...
DeLand, Zachary
core  

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

IMPROVED PSEUDOCURRENT DENSITY DISTRIBUTIONS OBTAINED FROM TEST MAGNETIC AND ELECTROPOTENTIAL IMAGES WITH DIPOLE STRUCTURE

Міжнародний науково-технічний журнал "Проблеми керування та інформатики", 2007
It is offered a number of approaches to reconstruction of pseudo-current distributions on the basis of Hosaka–Cohen transformation and Fourier transform for the analysis of magnetic and electro-potential maps with dipole structure.
N.N. Budnyk, V.N. Budnyk
doaj   +1 more source

Fetal diagnosis of KCNQ1‐variant long QT syndrome using fetal echocardiography and magnetocardiography

, 2020
A pregnant woman with KCNQ1 variant long QT syndrome (LQTS) underwent fetal magnetocardiography (fMCG) after atrioventricular (AV) block was noted during fetal echocardiogram—atypical for LQTS type 1. Concern for fetal LQTS on fMCG prompted monitoring of
Nina Gotteiner, Ron Wakai, Tsao, ST, Wakai, R, Lajja Desai, Janette Strasburger, Desai, L, Angira Patel, Gotteiner, N, Patel, A, Sabrina Tsao, Strasburger, J   +11 more
core   +1 more source

Algorithm of Cardiomagnetic Signal Evaluation: "Magnetocardiographic Lead"

Кібернетика та комп'ютерні технології
Introduction. The investigation of the electrical activity of the human heart by measuring electromagnetic signals is widely used in cardiodiagnostics. The use of magnetometric methods for diagnosing disorders of the heart is largely associated with the ...
Mykhailo Primin, Igor Nedayvoda
doaj   +1 more source

Neonatal magnetocardiography.

Clinical and experimental obstetrics & gynecology, 2002
The aim of the present study was to test the validity of magnetocardiography (MCG) in the estimation of neonatal cardiac rhythm using a single channel superconductive quantum interference device (SQUID).Our study population consisted of 50 neonates who were delivered normally between 37-41 weeks of gestation from clinically uncomplicated pregnancies ...
P G, Anastasiadis, P, Anninos, A, Kotini, N, Koutlaki, A, Garas, G, Galazios   +5 more
openaire   +1 more source