Positron-emission-tomography



noun
1.
the process of producing a PET scan.
noun
1.
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.

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