positron emission tomography
11Positron Emission Tomography — technique for creating detailed images of bodily tissues by injecting positron laden material into the body and recording the gamma rays emitted over a period of about two hours (Medicine) …
12positron emission tomography — noun tomography which relies on radioactive tracers injected into the patient, so as to detect abnormal biochemical activity. Also, PET …
13positron-emission tomography — ¦ ̷ ̷ ̷ ̷ ˌ ̷ ̷ ̷ ̷ ¦ ̷ ̷ ̷ ̷ noun : tomography in which an in vivo, noninvasive, cross sectional image of regional metabolism is obtained by a usually color coded video representation of the distribution of gamma radiation given off in the… …
14positron emission tomography — noun A medical imaging technique which detects the gamma rays produced by positrons emitted from injected radionuclides …
15positron emission tomography — pos′itron emis sion tomog raphy n. med the process of producing a PET scan Compare PET scanner …
16Positron emission — is a type of beta decay, sometimes referred to as beta plus ( beta;+). In beta plus decay, a proton is converted, via the weak force, to a neutron, a positron (also known as the beta plus particle , the antimatter counterpart of an electron), and …
17positron emission computed tomography — see positron emission tomography …
18positron emission tomography (PET) — Imaging technique used in diagnosis and biomedical research. A chemical compound labeled with a radioactive isotope (see radioactivity) that emits positrons is injected into the body, and detectors measure their activity in the tissues as they… …
19Positron Emission Tomography (PET) — A tool used to diagnose brain functions and disorders. PET produces three dimensional, colored images of chemicals or substances functioning within the body. These images are called PET scans …
20positron emission tomography scan — PET scan. A procedure in which a small amount of radioactive glucose (sugar) is injected into a vein, and a scanner is used to make detailed, computerized pictures of areas inside the body where the glucose is used. Because cancer cells often use …