Gamma camera based Positron Emission Tomography: A study of the viability on quantification
نویسندگان
چکیده
There are inherent difficulties which affect quantification of activity and other indices. They are related to the Poisson nature of radioactivity, to radiation interactions with patient body and detector, noise due to statistical nature of these interactions and to all the detection processes, as well as the patient acquisition protocols. Corrections are described in the literature and not all of them are implemented by the manufacturers: scatter, attenuation, randoms, decay, dead time, spatial resolution, and others related to the properties of each equipment.
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