Course book Advanced Treatment Planning 2018

How many fields?

- depends on the complexity of the case - size of the PTV, size of the patient

‘Standard’ 3D-CRT bladder treatment : 33 x 2.0 Gy: - 3 field (18MV) 3D CRT: CTV bladder + 15mm = PTV

4-5 field technique reduces high dose areas….. but increases low dose areas do not be afraid of adding beams

85-90%