Gallium 68-labeled fibroblast-activation protein inhibitor (68Ga-FAPI) has recently been a potential radiotracer for gynecological malignancies,including ovarian cancer. Early detection and localization of sites of recurrence helps to identify ovarian cancer patients who will benefit the most from secondary surgery, chemotherapy, or radiation therapy. Its clinical utility for recurrence detection of epithelial ovarian cancer and histological validation of FAPI findings is not well established.
This is a prospective study to investigate the potential efficacy of 68Ga-FAPI PET/CT for recurrence detection of epithelial ovarian cancer in comparison with 18F-FDG PET/CT.