MRI is a common and important auxiliary examination, MRI is no radiation, do not worry too much, MRI is charged according to each part, also will be different according to the machine price is different, 1.0T, 1.5T, 3.0T price is also different. The cost of 1.5T is about 480-550, and the specific cost varies from region to region and from hospital to hospital. The purpose of a lumbar MRI is to determine the density of the vertebral body, whether the vertebral body and spinal canal are occupied, the density of the disc nucleus pulposus, and the relationship with the nerve root spinal cord. No fasting is required before the examination, and the examination can be done at any time. It is necessary to detect whether there are metal foreign bodies in the body parts, and for those who have metal teeth or metal implants in the body, the doctor should be consulted before the MRI examination.