Technological advances in radiotherapy for esophageal cancer

Figure 1 Positron emission tomography/computed tomography images of 61-year-old man with primary squamous cell carcinoma in distal part of the esophagus T3N0M0 prepared in treatment position for radiotherapy planning. A: Computed tomography (CT), axial slice; B: Positron emission tomography (PET), axial slice; C: PET/CT fusion, axial slice; D: CT, sagital slice; E: PET, sagital slice; F: PET/CT fusion, sagital slice.

Figure 2 Intensity-modulated radiotherapy plan prepared on a positron emission tomography/computer tomography dataset (Figure 1). Delineated target volumes and organs at risk, beam arrangement and dose distribution in axial (A), coronal (B), and sagittal slices (C).