For which purpose Magnetic Resonance(MRI) Imaging is used? : Educational World

 MRI scanner are particularly well suited to mage the non-bony parts or soft tissues of body. The differ from computed tomography(CT), in that they don't use the damaging ionizing radiations of X-rays. The brain, spinal cord, the nerve cells as well as muscles, ligaments and tendons are seen much more clear with MRI than with regular X-ray or CT scan; for this reason MRI is often used to image knee and shoulder injuries.

    In the brain, MRI can differentiate between white matter and grey matter and can also be used to diagnose aneurysm and tumors. Because MRI don't use x-ay or other radiations, it is the imaging modality of choice when frequent imaging is required for diagnosis and therapy, especially in the brain. However, MRI is more expensive than x-ray imaging or CT scanning.

    One kind of specialized MRI is functional Magnetic Resonance Imaging(fMRI). This is used to observe brain structure and determine which areas of the brain ''activate'' (consume more oxygen) during various cognitive tasks. It is used to advance understanding of brain organization and offer a potential new standard for assessing neurological status and neurosurgical risks.