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