SPECT can be helpful in determining which parts of the brain are being affected by: Dementia, Clogged blood vessels, Seizures, Epilepsy, Head injuries. Ictal refers to a physiologic state or event such as a seizure, stroke, or headache.
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.