SPECT can be helpful in determining which parts of the brain are being affected by: Dementia, Clogged blood vessels, Seizures, Epilepsy, Head injuries. A nuclear medicine cerebral perfusion study can show if some parts of the brain are working more than normal, such as during an epileptic seizure, or less than normal as in dementia or between epileptic seizures.
A single-photon emission computerized tomography (SPECT) scan lets your doctor analyze the function of some of your internal organs. A SPECT scan is a type of nuclear imaging test, which means it uses a radioactive substance and a special camera to create 3-D pictures. While imaging tests such as X-rays can show what the structures inside your body look like, a SPECT scan produces images that show how your organs work. For instance, a SPECT scan can show how blood flows to your heart or what areas of your brain are more active or less active.