[18F]F-FAPI PET/CT and Laparoscopy in Staging Advanced Gastric Cancer

Patients included in the study will undergo FAPI-PET/CT after initial staging with gastroscopy and a contrast-enhanced CT of thorax and abdomen, but before undergoing a staging laparoscopy. Based on the results of the FAPI-PET/CT, the MDT and/or treating physician will decide on the next step: confirming possible malignant lesions on PET/CT by biopsies (either percutaneous of by staging laparoscopy), or in case of negative PET/CT, diagnostic laparoscopy.

\[18F\]-FAPI-74 will be administered intravenously 60 minutes before PET/CT-scanning to be able to detect (metastases of) gastric cancer