The Significance of Magnetic Resonance Imaging Scan
Magnetic resonance imaging scan is a medical imaging technique used in radiology to visualize detailed internal structure and function of the body. Since 1980, this technique is being used. During scanning, magnetic and radio waves are used. Patients are not exposed to X-rays or any other damaging forms of radiation.
The Magnetic resonance imaging unit is a large cylinder-shaped tube surrounded by a circular magnet. During scanning, the patient lies on a moveable examination table that is slid into the center of the magnet. Radio waves that are sent through the body for scanning are 10,000 to 30,000 times stronger than the magnetic field of the earth. These radio waves can affect the atoms of the body, forcing the nuclei into a different position. As the atoms move back into place they send out radio waves of their own that are picked up by the scanner. The computer turns these signals into an image. The images produced are based on the location and strength of the incoming signals.
Magnetic resonance imaging scan enables doctors to capture images of almost all the tissue in the body. Using this imaging technique doctors can also capture clear images of parts of the body that are surrounded by bone tissue. So this technique is useful when examining the brain and spinal cord of the body. This is perhaps the reason why this is considered to be the best technique for detecting tumors in the brain. To check the rate of proliferation of the cancer cells and to examine if the cancer cells have spread into nearby brain tissues, this imaging technique is used.
The Magnetic resonance imaging scan can produce images of the heart and the large blood vessels in the surrounding tissue. This enables doctors to detect heart defects that have been building up since birth, and to observe changes in the thickness of the muscles around the heart following a heart attack.
The Magnetic resonance imaging scan is an effective method that can be used to examine the joints, spine and the soft parts of your body such as the liver, kidneys and spleen.