Fig. 3
From: What scans we will read: imaging instrumentation trends in clinical oncology
Positron Emission Tomography (PET) imaging: a neutron-deficient, radioisotope (positron emitter) is used to label a biomolecule of choice (here: glucose; Tracer,) which is injected into the patient. The resulting annihilation radiation is detected in a PET system, the data are sorted into sinograms and stored in sonograms prior to image reconstruction. In case, post-acquisition scatter and attenuation correction is performed., tracer uptake in the PET images can be quantified. Materials courtesy of David W Townsend, Singapore