A CT scan of the brain, also called a brain CT scan or head CT, is a fast and commonly used imaging test that creates detailed cross-sectional images of the brain and skull. Doctors may recommend a brain CT scan when they need to quickly evaluate symptoms such as a severe headache, head injury, sudden confusion, weakness, or suspected bleeding in the brain. Unlike a standard X-ray, a CT scan produces multiple detailed images that can be viewed as slices, helping doctors assess the brain, skull,...