Figure 1.

Kaplan-Meier estimates of overall survival according to the textural feature gray-level nonuniformity (GLNU) extracted from pretreatment ¹⁸F-FDG PET in study cohort (n = 44) (A). Kaplan-Meier estimates of overall survival according to the change of total lesion glycolysis (ΔTLG) based on 2nd-week ¹⁸F-FDG PET in patients with low GLNU (n = 26) (B) and high GLNU (n = 18) (C). In the high GLNU group, patients with poor treatment response (lesser ∆TLG decline) had significantly worse survival outcomes.