Fig. 1From: Intentional avoidance of the esophagus using intensity modulated radiation therapy to reduce dysphagia after palliative thoracic radiationAxial and coronal CT slices illustrating the isodose distributions of the competing POP and ES-IMRT plans. The blue contour shows the PTV and overlap region (indicated by a red arrow) of the esophagus and esophagus ring having a green overlay and green contour, respectively. The turquoise colour overlay represents the uncompromised PTV (the ESPTV)Back to article page