Functional magnetic resonance imaging (fMRI) is a relatively new procedure that uses MR imaging to measure the tiny metabolic changes that take place in an active part of the brain.
A magnetic resonance imaging (MRI) scan is a painless procedure that lasts 15 to 90 minutes, depending on the size of the area being scanned and the number of images being taken.epending on the size of the area being scanned and how many images are taken, the whole procedure will take 15 to 90 minutes. The MRI scanner will make loud tapping noises at certain times during the procedure.
MRI Services at Lifespan. A magnetic resonance imaging (MRI) scan is performed inside of a large, open-ended cylindrical magnet that has a patient table in the center. MRI uses a strong magnetic field and radio waves to make images of the body. Because of this strong magnetic field, it is important to let the technologist know of any metal on or in your body. Some MRI exams require an injection of an MRI contrast or dye. Typical MRI studies require 30 to 60 minutes.