What is functional MR Imaging (fMRI)?
Magnetic resonance imaging (MRI) is a noninvasive medical test that helps physicians diagnose and treat medical conditions, which uses a powerful magnetic field and radio frequency pulses to produce detailed pictures of the brain and other organs. MRI does not use ionizing radiation (x-rays). 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.