Figure 6.
Top row: Anterior-posterior field delivered to a liver patient. The structures on display are the clinical target volume (CTV, pink) and the planning target volume (PTV, blue). Middle row: Field delivered to a head and neck patient. The visible structures are the gross tumor volume (GTV, green) and the CTV (blue). Lower row: Field delivered to a lung patient. The red line indicates the CTV. All values given are Gy(RBE). The scale of the difference image on the right is 10% of prescribed dose for row 1 and 2, while 30% for row 3.