Magnetic resonance imaging mri of the head is a painless noninvasive test that produces detailed images of your brain and brain stem an mri machine creates the images using a magnetic field and. Mri is the most sensitive imaging method when it comes to examining the structure of the brain and spinal cord it works by exciting the tissue hydrogen protons which in turn emit electromagnetic signals back to the mri machine the mri machine detects their intensity and translates it into a gray scale mri image. Magnetic resonance imaging of the brain uses magnetic resonance imaging mri to produce high quality two dimensional or three dimensional images of the brain and brainstem without the use of ionizing radiation x rays or radioactive tracers. A head mri is a noninvasive imaging test that creates detailed pictures of your brain and surrounding tissues an mri allows your doctor to see inside your brain to check for diseases or injuries without having to do surgery your doctor can use the images to make a diagnosis and recommend the best treatment for your condition
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