Lesions blurred by respiratory motion are common in fluorine-18 PET/CT studies. To avoid these artefacts, several standard gating correction technics are available. the investigator aimed to compare the impact of different gating techniques based on phase, amplitude, elastic-motion monitored with and without pressurre sensor device on standardized uptake value (SUVmax and SUVpeak) and uptake volume (UV) measurements on different sizes of pulmonary and liver lesions. The feasability of this study will be done using anthropomorphic coupled with a motion phantom and on a series of patients.
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Comparison of the different gating systems in lung lesions visualization
Timeframe: Inclusion