Description:

The aim of this study is to evaluate, in patients with various types of tumor, the radiotracer uptake and clinical feasibility of 18F-FAPI-RGD PET/CT compared with those of 18F-FDG PET/CT. To evaluate the diagnostic performance of 18F-FAPI-RGD and 18F-FDG PET imaging, the results of the visually interpreted PET images will be compared with the histopathologic results (via surgery or biopsy), which are used as the gold standard for the final diagnosis. For patients for whom tissue diagnosis is not applicable, clinical and radiographic follow-up data will be used as the reference standard to validate the PET/CT findings.