SPECT vs PET
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At the time the article was created Ayush Goel had no recorded disclosures.View Ayush Goel's current disclosures
At the time the article was last revised Giorgio Minen had no financial relationships to ineligible companies to disclose.View Giorgio Minen's current disclosures
Single photon emission computed tomography (SPECT) and positron emission tomography (PET) are nuclear medicine imaging techniques which provide metabolic and functional information unlike CT and MRI.
They have been combined with CT and MRI to provide detailed anatomical and metabolic information.
Positron emission tomography (PET):
- is very expensive
- uses positron emitting radioisotope (tracer)
- gives better contrast and spatial resolution (cf. SPECT)
- has a ring of multiple detectors
Single-photon emission computed tomography (SPECT):
- is lower cost
- uses gamma emitting radioisotope (tracer):
- gives poorer contrast and spatial resolution (cf. PET)
- usually one large crystal based detector