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Table 3 Functional tumor volumes (FTVs)

From: Impact of FAPI-46/dual-tracer PET/CT imaging on radiotherapeutic management in esophageal cancer

FTV

FAPI-46/dual-tracer PET/CT (ml, mean ± SD)

FDG-PET/CT

(ml, mean ± SD)

Wilcoxon signed-rank test; Pearson’s correlation

FTVtotal

77.04 ± 84.03

58.09 ± 76.20

p < 0.001;

r = 0. 0837

FTVtumor

49.17 ± 63.67

32.82 ± 49.71

p = 0.002;

r = 0.703

FTVmetastases

33.69 ± 74.64

40.03 ± 82.03

p = 0.008;

r = 0.992

  1. Functional tumor volume (FTV) of all tumorous lesions (FTVtotal), tumor (FTVtumor), and metastasis (FTVmetastases) on FAPI-46/dual-tracer PET/CT and FDG-PET/CT for all patients. Volumes were compared using the Wilcoxon signed-rank test (Pearson’s correlation). FDG = fluorodeoxy-D-glucose, FAPI = fibroblast activation protein inhibitor