Results 151 to 160 of about 1,711 (182)
Some of the next articles are maybe not open access.
Capability and Limitations of Electrocardiography and Magnetocardiography
IEEE Transactions on Biomedical Engineering, 1972The capabilities and limitations of electrocardiography and magnetocardiography are discussed. Representing the electrical activity of the heart by an impressed current density ji, electrocardiography determines the spherical harmonic multipole expansion of its divergence (flux source), while magnetocardiography determines the spherical harmonic ...
openaire +2 more sources
Magnetocardiography in the diagnosis of fetal arrhythmias
Heart Rhythm, 2013In 1899, Wenckebach described the phenomenon that bears his name. His initial observation was in a 40-year-old patient “with nervous temperament” who had an irregular pulse, in whom he worked out the mathematical relationship between atrial and ventricular activity. Often forgotten is the fact that Wenckebach accomplished this feat before the advent of
openaire +2 more sources
New Trends in Clinical Magnetocardiography
2000Magnetocardiography was introduced to clinical cardiologists in the early 1970’s. The measurement devices were technically unreliable, signal-to-noise ratio was poor and measurements were time consuming. Most measurements were performed in ambient environment without any shielding.
Makijarvi, M +10 more
openaire +2 more sources
Comparative capabilities of electrocardiography and magnetocardiography
The American Journal of Cardiology, 1972The readers of the paper by Cohen and McCaughan in this issue of the Journa1,1 particularly those new to magnetocardiography, will undoubtedly raise 2 vital questions. First, “Is magnetocardiography, in principle, different from electrocardiography ?” and second, “Can magnetocardiography provide clinical information that is not obtainable in ...
openaire +2 more sources
Herzschrittmachertherapie & Elektrophysiologie, 2010
Fetal magnetocardiography is a new, alternative method for prenatal surveillance. The fetal magnetocardiogram (FMCG) registers the magnetic field produced by conduction currents in the fetal heart. Compared to the fetal electrocardiogram, the propagation of magnetic fields is relatively undisturbed by surrounding tissue. The FMCG thus has the advantage
openaire +1 more source
Fetal magnetocardiography is a new, alternative method for prenatal surveillance. The fetal magnetocardiogram (FMCG) registers the magnetic field produced by conduction currents in the fetal heart. Compared to the fetal electrocardiogram, the propagation of magnetic fields is relatively undisturbed by surrounding tissue. The FMCG thus has the advantage
openaire +1 more source
Contribution Maps in Magnetocardiography
1989The study reported on in this paper is an example of the so-called ‘forward’, or ‘simulation’ studies. Similar such studies were reported on within a decade of the appearance of the first report on the measured cardiac magnetic signals1. One of these early studies2 included an extensive characterization of the heart’s electrical activity as represented
Adriaan van Oosterom +2 more
openaire +1 more source
Ischemia and Hibernation in Magnetocardiography
2000Detection, quantification and localization of ischemia is clinically important. New therapeutic interventions for revascularization enable treatment of new and larger patient groups. These techniques include coronary angioplasty and stenting, debulking methods like rotablation, mini-invasive surgery as well as surgical or percutaneous transmyocardial ...
openaire +1 more source