Fig. 2From: A phase I/II radiation dose escalation trial using simultaneous integrated boost technique with elective nodal irradiation and concurrent chemotherapy for unresectable esophageal CancerCT-CT fusion images of two enrolled patients. Images on the left are pre-treatment ones, while those on the right are taken after 23 fractions of radiation. Red line indicates GTV-T, the green line outlines PTV, the blue line outlines PGTVBack to article page