Imaging modality based on the detection of the two gamma photons generated by a positron emitter.

combining positron emission tomography and X-ray analysis.

and procedures for administering a medicine.

at a given time for a defined disease. It is an estimation of how common a disease is in a population.

charged elementary particle, constituting the nucleus of the atom together with the neutron.

of external radiotherapy using a proton beam.

or waves emitted by a source. Also, it corresponds to the process of transmission of energy in corpuscular (α, β- particles, etc.) or electromagnetic form (visible light, ultraviolet, infrared, X, γ, etc.)

present in a radioactive element have disappeared through spontaneous transformation. This period (half-life) is different for each radionuclide, but is a precise physical constant for a given radionuclide and is influenced by neither temperature or pressure.