What POSITRON EMISSION TOMOGRAPHY (PET) means: PET scans use radiopharmaceuticals to create 3 dimensional images. The decay of the radiotracers used with PET scans produce small particles called positrons. When positrons react with electrons in the body they annihilate each other. This annihilation produces two photons that shoot off in opposite directions. The detectors in the PET scanner measure these photons and use this information to create images of internal organs.
- Definition Prosthetics:
- Dictionary The design, fabrication, and fitting of artificial body parts positron emission tomography (pet).
- Definition Point-Of-Care:
- Dictionary treating of patients at sites close to where they live. Rapid diagnostic tests are used to obtain immediate, on-site results. The success of the concept relies on portable, rapid diagnostic devices positron emission tomography (pet).
- Definition Photon:
- Dictionary A particle of light or electromagnetic radiation. The energies of photons range from high-energy gamma rays and x-rays to low-energy radio waves positron emission tomography (pet).
- Definition Piezoelectric Crystals:
- Dictionary transducer of an ultrasound device that vibrate when an electric signal is applied, emitting high-frequency sound pressure waves. The crystals are the crucial component of an ultrasound device both positron emission tomography (pet).