Objectives and Requirements of Clinical PET/CT Imaging
| Scenario | Clinical approach | Focus group | Demands on CT | Demands on PET |
|---|---|---|---|---|
| CT for simple anatomic orientation | PET/CT replaces PET CT for fast attenuation correction and general anatomic orientation Mostly whole-body scans | Nuclear medicine | Low | High |
| CT for state-of-the-art diagnostic information | PET/CT replaces CT, or CT and PET State-of-the art diagnostic CT with contrast agents and standard exposure levels to maximize information on anatomy and tumor vascularization CT for fast attenuation correction Whole-body scans and dedicated protocols | Cross-modality, nuclear medicine, radiology, oncologist | High | High |