Figure 2From: Deformable versus rigid registration of PET/CT images for radiation treatment planning of head and neck and lung cancer patients: a retrospective dosimetric comparisonCoronal view of the planning CT with fused PET for a lung cancer subject. The GTV contours generated using the RIR and DIR PET images are shown in red and blue, respectively. An intensity threshold equivalent to SUV ≥ 2.0 was used for the PET image.Back to article page