Clinical Research Directory

18F-PSMA (n=3) and 68Ga-PSMA (n=3) Inclusion criteria: * Persons \>18 yo with suspected prostate cancer metastasis * Prior imaging study (CT, and/or MRI and/or Bone scan and/or Fluciclovine scan) suspicious for metastatic disease, obtained within 4 months from the research scan date. 68Ga DOTATATE (n=3) or 64Cu-DOTATATE (n=3) Inclusion Criteria: * Persons \> 18 yo suspicious for or diagnosed with somatostatin receptor positive neuroendocrine tumors (NETs) * Prior DOTATATE PET/CT scan suspicious for tumor obtained not earlier than 4 months from the research scan date. Exclusion Criteria: • Recent administration of long-acting somatostatin analogs Exclusion Criteria for all participants: * Adults unable to consent * Pregnant/lactating persons * Prisoners * Unable to lie supine for up to 90 minutes at different timepoints in the PET scanner * Uncontrolled claustrophobia * Any significant medical condition that in the opinion of the investigator would prevent the participant from participating and/or adhering to study related procedures or interfere with participant safety