ESTRO course on Image Guided Radiotherapy in Clinical Practice 2018

QA of treatment delivery for tracking

• “Real” 4D is not tested • This is NOT individual patient QA ➢ Irregular breathing? ➢

Loss of surrogate/tumour relationship?

• You are still pretty much only checking the machine

• This will NOT give you any info on how the patient actually breathed during treatment ➢ Unless you have thorough imaging ➢ Log files of the beam/tumour position