Scanning Systems, Positron Emission Tomography
Definition : Scanning systems that detect back-to-back gamma ray (photon) emissions as the result of the combination of an emitted positron and a free electron and that use computerized processing to generate in vivo cross-sectional images of an administered positron-emitting radiopharmaceutical. These systems consist of scintillation detectors arranged in stationary rings around the patient and photomultiplier tubes; coincidence circuits; a patient table; a computer subsystem, including software for image processing, display monitors, and a data storage unit; and an operator console. Clinical uses of these systems include demonstration of biological functions and the assessment of the physiology and pathology of various organs and tissues.
Entry Terms : "Cameras, Positron" , "Scanners, Positron Emission Tomography" , "Positron Emission Tomography Systems" , "Scanners, PET" , "Positron Emission Tomography (PET) Units" , "Scanners, Positron Emission Tomography (PET)" , "Scanners, ECT" , "PET Scanners" , "Scanners, Isotope" , "Computerized Tomographs"
UMDC code : 16375