Fig. 3
From: Impact of FAPI-46/dual-tracer PET/CT imaging on radiotherapeutic management in esophageal cancer
Gross Tumor Volumes (GTVs)
Gross Tumor Volume (GTV) delineation (ml) according to FDG (green) and FAPI-46/dual-tracer PET/CT (yellow). All tumorous lesions (primary tumor, metastatic lymph nodes and, if present, distant metastasis with increased tracer accumulation and CT correlate) were contoured as GTV.