Physics Bucharest 2017

Take home messages SABR

Technical requirements: - Use adequate imaging modality for delineation (e.g. liver MRI) - Motion management - Consider fiducials (e.g. liver) - Planning: - Dose calculation algorithm: type B is advised (especially in lung tumors) - Prescription to isodoseline - Inhomogeneity – steep dose gradients - Pretreatment imaging and verification is mandatory - QA (see AAPM reports)

Clinical indications:  Cranial: RCT 

Clinical indications

Extracanial: no randomized controlled trials  Most data on lungs: •

Excellent LC similar to surgery

Low toxicity rate (cave: central tumours)  standard of care for inoperable T1-T2a lung tumors

•

 Other sites: good LC, low toxicity, often small studies  promising

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