Gadolinium-based contrast agents are approved by FDA for use with MRI as a contrast agent to provide an improved image of body organs and tissues. Gadolinium-based contrast agents are also used for MRA, another imaging procedure used to evaluate blood vessels.3.he use of gadolinium-based contrast agents in MRA is not FDA approved. MRA with gadolinium-based contrast is thought by many radiologists to provide more detailed images of blood vessels than MRA without gadolinium-based contrast.
Neurologists do not perform surgery. A neurologist's training includes an undergraduate degree, four years of medical school, a one-year internship, and at least three years of specialized training.
Neurologists treat neurological conditions, or problems with the nervous system. Symptoms that commonly require a neurologist include: 1  coordination problems.2  muscle weakness. 3  a decrease in sensation. neurologist is a doctor who specializes in treating diseases of the nervous system.