Never know front facing MRI are that scary 💀 A head MRI is a noninvasive imaging test that creates detailed pictures of your brain and surrounding tissues. An MRI allows your doctor to see inside your brain to check for diseases or injuries without having to do surgery. Your doctor can use the images to make a diagnosis and recommend the best treatment for your condition. An MRI uses powerful magnets, radio waves and a computer to take images of your brain. MRI images are clearer and more precise than other forms of diagnostic imaging. Unlike CT scans and x-rays, an MRI does not use radiation.