What is the procedure called when they x-ray your brain?

CT scan (computed tomography): A CT scan uses X-rays and a computer to create detailed cross-sectional images of the brain.

MRI (magnetic resonance imaging): An MRI uses magnetic fields and radio waves to create detailed images of the brain.

PET scan (positron emission tomography): A PET scan uses radioactive tracers to measure brain activity.

SPECT (single-photon emission computed tomography): A SPECT scan uses radioactive tracers to measure brain activity.