Gallium Ga 68-labeled PSMA-11 PET in Detecting Prostate Cancer Metastasis
This phase III trial studies how well gallium Ga 68-labeled prostate specific membrane antigen (PSMA)-11 positron emission tomography (PET) works in detecting prostate cancer that has spread to other places in the body. PSMA is a protein found on most prostate cancers. Gallium Ga 68-labeled PSMA-11 is an imaging agent that binds to prostate cancer cells and can be imaged using PET scan. A PET scan uses a special camera to detect energy given off from radioactive material to make detailed pictures of areas where the Ga-68 accumulates in the body. The PET scan if often combined with a magnetic resonance imaging (MRI) or computed tomography (CT) scan may help to more accurately map the location of where in the body the radioactive material has collected. Gallium Ga 68-labeled PSMA-11 may help to detect the presence of prostate cancer that has spread to other places in the body (metastasis).