A stroke occurs when the blood supply to the brain is interrupted or there is bleeding in the brain. Within minutes, brain cells begin to die. It is urgent to seek emergency care at the first sign of a stroke. Early treatment saves many lives and reduces the effects of stroke.
Quick Answer. The purpose of taking an MRI scan of the lumbar spine is to treat or better diagnose problems with the spine, explains WebMD. Patients may need an MRI scan if they show symptoms such as back pain accompanied by fever, birth defects affecting the spine, injury to the lower spine, and persistent or severe lower back pain.
MRI stands for magnetic resonance imaging. An MRI scan uses magnetism and radio waves to build up a picture of the inside of the body. It can show how deeply a tumour has grown into body tissues.For some types of cancer it can tell whether the tissue left behind after treatment is cancer or not.hat an MRI scan is. MRI stands for magnetic resonance imaging. This type of scan uses magnetism and radio waves to build up a picture of the inside of the body. Below is an example of an MRI scan of the head. MRI is completely painless, but the scanner is very noisy.