Figure 1

Classification of 14 HNC lines using ¹⁸ F-FDG PET quantification parameters SUV _max , SUV _mean and Tumor-to-Muscle ratio (T/M) and correlation with established PET global texture features. (A) ¹⁸F-FDG PET image of a mouse with a head and neck xenograft tumor in the right flank (arrow). (B) Heatmap of the PET parameters showing no clear clustering per tumor line. Each parameter was ranked from low (white) to high (black) for analysis. Tumor lines are indicated by their respective numbers. (C) Correlation heatmap of the PET parameters and PET features.