|positron emission tomography|
|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
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.