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Table 2 Parotid gland average mean standardized uptake values (Avg SUVmean) in pre- and post- treatment scans of head-and-neck cancer patients

From: 18F-FDG-PET/CT in radiation therapy-induced parotid gland inflammation

Avg SUVmean (g/mL)

Pre-treatment

Post-treatment

P value

Photon therapy

1.38

1.50

0.03

Proton therapy

1.25

1.32

0.31

Combined therapy

1.51

1.46

0.40