Technical Advances and Pitfalls in Head and Neck Radiotherapy
Figure 4
IMRT plan for the same patient above with a locally advanced nasopharyngeal cancer demonstrating sharp dose gradient at the level of the skull base, clivus, and upper cervical spine in close proximity to temporal lobe brain, brainstem, and spinal cord. CBCT was used for daily alignment to ensure setup accuracy (see Figure 3).
