You may be asked to return for a comparison scan called a diamox brain spect scan between two to 14 days after your initial scan diamox is a drug which increases the blood flow to the brain a comparison of the baseline brain scan with a diamox brain scan provides helpful information to your physician about the blood flow to your brain. Brain perfusion single photon emission computed tomography spect imaging is a functional nuclear imaging technique performed to evaluate regional cerebral perfusion brain spect imaging is a safe procedure on the whole however care must be provided by the imaging technologist to reduce patient . Over the past 20 years brain single photon emission computed tomography spect imaging has developed a substantial evidence based foundation and is now recommended by professional societies for numerous indications relevant to psychiatric practice. 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. Single photon emission computed tomography spect or less commonly spet is a nuclear medicine tomographic imaging technique using gamma rays it is very similar to conventional nuclear medicine planar imaging using a gamma camera that is scintigraphy 2
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