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cardiac magnetic resonance imaging
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cardiac magnetic resonance imaging

medicine
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Also known as: CMR, cardiac MRI, heart MRI
Written by
Kara Rogers
Kara Rogers is the senior editor of biomedical sciences at Encyclopædia Britannica, where she oversees a range of content from medicine and genetics to microorganisms. She joined Britannica in 2006 and...
Kara Rogers
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The Editors of Encyclopaedia Britannica
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.
The Editors of Encyclopaedia Britannica
Last Updated: • Article History
Also called:
cardiac MRI or heart MRI

cardiac magnetic resonance imaging (CMR), three-dimensional diagnostic imaging technique used to visualize the heart and its blood vessels without the need for X-rays or other forms of radiation. Cardiac MRI employs a steady magnetic field, a radio-frequency transmission system, and computer technology to generate detailed pictures and brief videos of the beating heart. The images produced provide valuable information about heart structure and function. Cardiac MRI is used to diagnose a variety of heart conditions, including coronary heart disease (coronary artery disease), congenital heart defects, pericarditis (inflammation of the membranous sac enveloping the heart), cardiomyopathies (weaknesses in the heart muscle), ...(100 of 440 words)

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