Brain scans include several types of imaging techniques include computed tomography (CT), positron emission tomography (PET), and single proton emission (SPECT) scans.
Computed tomography (CT scan): A CT scan can aid in proper diagnosis by showing the area of the brain that is affected. CT scans can be used to quickly detect haemorrhage in the brain and to determine if someone who has had a stroke can safely receive intravenous treatment to dissolve clots.
PET scan: Provide two and three-dimensional pictures of brain activity by measuring radioactive isotopes that are injected into the bloodstream. PET scans can be used to evaluate people who have epilepsy or certain memory disorders, and to show brain changes following injury.
(SPECT) scan: It is a nuclear imaging test that can be used to evaluate certain brain functions.