Definition : An imaging technique using compounds labelled with short-lived positron-emitting radionuclides
(such as carbon-11, nitrogen-13, oxygen-15 and fluorine-18) to measure cell metabolism.
It has been useful in study of soft tissues such as cancer; cardiovascular system;
and brain. SPECT is closely related to PET, but uses isotopes with longer half-lives
and resolution is lower. [MeSH];
An imaging technique using compounds labelled with short-lived positron-emitting radionuclides
(such as carbon-11, nitrogen-13, oxygen-15 and fluorine-18) to measure cell metabolism.
It has been useful in study of soft tissues such as cancer; cardiovascular system;
and brain. SPECT is closely related to PET, but uses isotopes with longer half-lives
and resolution is lower. [MeSH]