Fig. 7From: Accurate FDG PET tumor segmentation using the peritumoral halo layer method: a study in patients with esophageal squamous cell carcinomaRelationship between SUVmax and PHL tumor threshold. PHL tumor threshold (% of SUVmax) showed a strong inverse correlation with SUVmax (a: σ = − 0.923, p < 0.0001). The SUV of PHL tumor threshold showed a strong positive correlation with SUVmax (b: σ = 0.891, p < 0.0001)Back to article page