Fundamentals of Magnetic Resonance Imaging
Magnetic resonance imaging (MRI) combines some of the most interesting principles of physics and some of today's most sophisticated technology to make medical images of amazing clarity and surprisingly high diagnostic accuracy.1–4 MRI today is more revolutionary than x-ray imaging was a century ago. Twenty-five years ago, when MRI was first introduced to clinical practice, its richness of applications to medical imaging could not have been imagined. It quickly was demonstrated that MRI is useful in diagnosing diseases in the brain and spine. Today, MRI provides not only exquisite anatomic detail and contrast but also provides functional information that can help characterize disease. We now use MRI routinely to assess blood flow, to quantify diffusion within cells, and to localize thought processes in the human brain. The richness of MRI is continuing to unfold.
KeywordsMagnetic Dipole Breast Magnetic Resonance Imaging Larmor Frequency Magnetic Dipole Moment Nuclear Magnetic Reso
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