Fig. 7From: Quality assurance of the SCOPE 1 trial in oesophageal radiotherapyExample of a benchmark plan improvement via the QA process: Adjustment of the lateral beam orientations of the submitted plan (a) to better avoid the spinal cord PRV, allowed an increase in the contribution from the anterior and posterior beams, thereby enabling a greater level of lung sparing at the 20Gy dose level (b)Back to article page