https://www.physlab-wiki.com/ 2026-04-17T19:47:29+00:00 https://www.physlab-wiki.com/ https://www.physlab-wiki.com/lib/tpl/UChicago/images/favicon.ico text/html 2023-09-19T12:52:55+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.physlab-wiki.com/phylabs/lab_courses/phys-211-wiki-home/positron-emission-tomography/backup/start?rev=1695142375&do=diff Background Positron Emission Tomography (PET) is a medical imaging technique which is commonly used to map out metabolic activity in the body. Typically, a $\beta^+$-emitting (positron-emitting) radionuclide (such as ${}^{18}\textrm{F}$) attached to a glucose molecule is injected into the body where it is taken up by tissues in proportion to their metabolic activity. Positrons produced by the decay of the radionuclide usually travel less than 1 mm in human tissue before they bind with an electr…