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MRI is a medical imaging technique that uses a magnetic field and radio waves to create detailed images of the organs and tissues in your body. Learn why MRI is done, how to prepare, what to expect and what are the risks of this procedure.
Learn about MRI, a medical imaging technique that uses strong magnetic fields and radio waves to create images of the body. Find out how MRI works, what it is used for, and what are its advantages and limitations.
MRI scans use magnets, radio waves, and a computer to create images of soft tissues in the body. Learn about the types, uses, preparation, risks, and results of this noninvasive medical test.
Learn what an MRI is, how it works, and what it can show about your body. Find out the differences between closed and open MRI machines, contrast material, and CT scans.
Learn what MRI (magnetic resonance imaging) is, how it works, and what it can diagnose. Find out about the risks, benefits, and types of MRI scans for different body parts.
MRI is a noninvasive medical imaging test that uses magnets and radio waves to create detailed images of almost every internal structure in the body. Learn what to expect during your MRI exam, how to prepare for it and what types of MRI are available at Johns Hopkins Medical Imaging.
MRI is a painless, noninvasive test that uses magnets and radio waves to create detailed images of your body. Learn about the purpose, risks, and limitations of MRI for various medical conditions.
MRIs employ powerful magnets which produce a strong magnetic field that forces protons in the body to align with that field. When a radiofrequency current is then pulsed through the patient, the protons are stimulated, and spin out of equilibrium, straining against the pull of the magnetic field.
What it's used for. MRI scans have many uses. They can: Help to determine if someone has had a stroke; Support a diagnosis of multiple sclerosis; Identify problems of the brain and spinal cord that may not be seen on a computed tomography (CT) scan
MRI is preferred to computed tomography (CT) when doctors need more detail about soft tissues—for example, to image abnormalities in the brain, spinal cord, muscles, and liver. MRI is particularly useful for identifying tumors in these tissues. MRI is also used to do the following: Measure certain molecules in the brain that distinguish a brain tumor from a brain abscess