IMRT

Treatment algorithm

• < 7 mm

• ≤ 3 metastases: ITV (Vero: PTV 5 mm)* • > 3 metastases: ITV

(Tomotherapy: PTV 8 mm)

• ≥ 7 mm: internal marker in met(s) with largest peak-to-peak: Dynamic Tracking Vero: PTV 5mm • 2-3 mets: other mets ITV Vero: PTV 5 mm)* • > 3 mets: other mets ITV (Tomotherapy: PTV 8 mm)

* lesions < 1cm: 8mm PTV margin

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