Figure 2

The potential bias effect between AXB and AAA in the dose distributions when lung tissue is involved. In the left panel an axial view of the dose difference between AAA and AXB dose distributions and in the right panel the DVH display for the two plans. In red the PTVs, in green the ipsilateral lung, the ipsilateral lung minus the PTV and the contralateral lung, in yellow the body, in blue the esophagus and in magenta the spinal cord. Triangles correspond to Acuros, the squares to AAA.