Emission computed tomography
From Infogalactic: the planetary knowledge core
Lua error in Module:Infobox at line 235: malformed pattern (missing ']'). Emission computed tomography (ECT) is a type of tomography involving radioactive emissions.
Types include positron emission tomography (PET) and Single-photon emission computed tomography (SPECT).
The imaging agent used in SPECT emits gamma rays, as opposed to the positron emitters (such as 18F) used in PET. There are a range of radiotracers (such as 99mTc, 111In, 123I, 201Tl) that can be used, depending on the specific application.
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