Tuesday, October 25, 2011

MRI

There a few test to perform before any action done to confirm the treatment like x-ray, CT scan and MRI, for the time being MRI scan is most effective to see everything inside our body.i had done MRI before ….For those who not dealing with any health problem sure not understand what kind of MRI.
What is an MRI scan?
An MRI (or magnetic resonance imaging) scan is a radiology technique that uses magnetism, radio waves, and a computer to produce images of body structures.
The MRI scanner is a tube surrounded by a giant circular magnet. The patient is placed on a moveable bed that is inserted into the magnet.
The magnet creates a strong magnetic field that aligns the protons of hydrogen atoms, which are then exposed to a beam of radio waves. This spins the various protons of the body, and they produce a faint signal that is detected by the receiver portion of the MRI scanner.
The receiver information is processed by a computer, and an image is produced.
When are MRI scans used?
An MRI scan can be used as an extremely accurate method of disease detection throughout the body. In the head, trauma to the brain can be seen as bleeding or swelling.
It provides valuable information on glands and organs within the abdomen, and accurate information about the structure of the joints, soft tissues, and bones of the body.
Often, surgery can be deferred or more accurately directed after knowing the results of an MRI scan.





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