the process of producing a PET scan.
a technique for assessing brain activity and function by recording the emission of positrons from radioactively labelled substances, such as glucose or dopamine
positron emission tomography n.
Abbr. PET Tomography in which a computer-generated image of local metabolic and physiological functions in tissues is produced through the detection of gamma rays that are emitted when introduced radionuclides decay and release positrons.
positron emission tomography
Tomography in which a computer-generated image of metabolic or physiologic activity within the body is produced through the detection of gamma rays that are emitted when introduced radionuclides decay and release positrons. The images are used in the evaluation of coronary artery disease, epilepsy, and other medical disorders.
[poz-i-troh-nee-uh m] /ˌpɒz ɪˈtroʊ ni əm/ noun, Physics. 1. a short-lived atomic system consisting of a positron and an electron bound together. /ˌpɒzɪˈtrəʊnɪəm/ noun 1. (physics) a short-lived entity consisting of a positron and an electron bound together. It decays by annihilation to produce two or three photons
Portable Operating System Interface Portable Operating System Interface for UNIX
Pediatric Orthopaedic Society of North America
[poh-soh-ley, po-; Spanish paw-saw-le] /poʊˈsoʊ leɪ, pɒ-; Spanish pɔˈsɔ lɛ/ noun, Mexican Cookery. 1. a thick, stewlike soup of pork or chicken, hominy, mild chili peppers, and coriander leaves: traditionally served at Christmas and often favored as a hangover remedy.