Description: The MRI scan is a radiology technique using magnetic and radio waves, resulting in no exposure to X-rays or any other damaging forms of radiation. The image is produced by the computer and it is quite detailed, able to detect tiny changes of structures within the body. To increase the accuracy of images, some procedures use contrast agents like gadolinium. The MRI technique is useful in examining the brain and spinal cord and the Scan may help the doctors to diagnose torn ligaments, cancer etc.