Positron emission tomography (PET)imaging follows the emission of
A)positrons.
B)electrons.
C)neutrons.
D)protons.

Question

Positron emission tomography (PET)imaging follows the emission of 
A)positrons.
B)electrons.
C)neutrons.
D)protons.

Quizplus · Accepted Answer

Positron emission tomography (PET) imaging follows the emission of positrons. PET uses radiotracers, molecules labeled with short-lived positron-emitting isotopes, to visualize metabolic and physiological functions in the body. When the positrons emitted from the radiotracer interact with electrons in the body, they produce gamma rays that are detected by the PET scanner, allowing for the creation of a 3D image of the area being studied.

Positron Emission Tomography (PET)imaging Follows the Emission of