An example of the planned (left) and delivered (right) axial CT images demonstrating changes in the IMN coverage. The prescription was 200 cGy×23. The mean RTDs are (0.06, 0.15, 0.78, 0.68, −0.57, 2.76), and the SDs of the R TDs are (1.01, 1.41, 0.78, 0.52, 0.25, 0.44).