Thanks Megaspaz!) Like the left turn this is another hand signal that you should know if you have your license. Unlike the left hand turn this one is a little more tricky to figure out if you aren't familiar with it so don't expect your average car driver to know what this means.
A Single Photon Emission Computed Tomography (SPECT) scan is a type of nuclear imaging test that shows how blood flows to tissues and organs. A SPECT scan integrates two technologies to view your body: computed tomography (CT) and a radioactive material (tracer). The tracer is what allows doctors to see how blood flows to tissues and organs.
Page Content. A brain SPECT, or Single Photon Emission Computed Tomography, scan is used to detect altered blood flow in the brain. A SPECT scan is a nuclear medicine exam that uses a radioactive compound to diagnose some diseases of the brain. It is a form of radiology because radiation is used to capture pictures of the human body. Procedural Details You will be given a small dose of radioactive material through an intravenous (IV) line. This compound, called a tracer, collects in the brain and gives off gamma rays.