Brain SPECT (single-photon emission computerized tomography) Imaging can be used in some instances as an additional diagnostic tool for a physician to analyze areas of hypo activity on the surface as well as hyper active deeper limbic structures of the brain. SPECT scans are a type of nuclear imaging test, and use a radioactive tracer substance and special camera to create 3-D pictures.
The use of SPECT imaging by an experience medical doctor may help understand what areas of the brain that are causing pathological states of depression, anxiety, either from head trauma or from biological inheritance, as well as other types of neurotoxicity.
It is very important to note that SPECT imaging is only a piece of the puzzle and should be used in addition to a complete history/evaluation as well as various objective and subjective rating scales, to help with determining the best course of treatment options. It should not and can not be a stand alone crystal ball, as some people claim it is. My view and my experience in using this technology is that if a clinician wants to use the SPECT scan to help aide him or her in treating their client, he or she needs to be even more astute and knowledgeable to have a favorable out come.