Magnetic field imaging
noninvasive and contact-free cardiac diagnostic method

Magnetic Field Imaging (MFI) is a non-invasive and side-effect-free cardiac diagnostic method. In more recent technology, magnetocardiography (MCG) has become the clinically predominant application for recording the heart's magnetic signals. that detects and records the electromagnetic signals that are associated with the heartbeat using a multi-channel magnetic sensor array. The electric signals are known from the ECG. In the 1990s and beyond, more recent technology has supplanted the MFI, particularly MCG (xref. Cardiomag Imaging, Inc.). Through clinical research in Europe, Asia, and the U.S. (see publications in footnotes), MCG has been proven to have practical application for diagnosis of cardiac disease, and has become the clinically predominant application for recording the heart's magnetic signals. In comparison to MCG, MFI, among others, records the whole relevant area above the chest of the person.
Background
The general principal of MFI is based on two facts:
Cell activity in the human body is connected to electric activity (based on Galvani, Italy 1786).
Electric current is associated with a corresponding magnetic field (based on Ørsted, Denmark 1819).
The difference between the electric and the magnetic signals:
In comparison to the electric signals, which are influenced by the differently conductive tissue of the body and varying resistance of the skin before they can be recorded, the magnetic signals travel through the body almost without disturbance.
This brief starts where responsible research should: with the source description of “Magnetic field imaging” as noninvasive and contact-free cardiac diagnostic method. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the general reference register because the source frames it as noninvasive and contact-free cardiac diagnostic method. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 24, 2025. The linked authority identifier is Q961880. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1786 and 1819.
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This entry incorporates text from “Magnetic field imaging” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.