Description:

Fibroblast activation protein (FAP) is a serine protease that belongs to the dipeptidyl peptidase-IV (DPP-IV) family located in fbroblast membranes. FAP is overexpressed in the cancer-associated fbroblasts (CAFs) of 90% of epithelial carcinomas, including primary and metastatic liver cancer. We aim to conduct a prospective study to investigate the diagnostic perfoemance of 18F-FAPI PET/CT in evaluating suspicious liver mass without FDG avidity.