SBRT 2016

The treatment chain

Imaging

+

with

Image registration

Hybride

BlueBag

Delineation

• Delineation GTV and OAR on MRI • CTV = GTV, PTV = CTV + 3mm

Treatment planning

Data transfer

VMAT planning • 1 dual arc per isoc • 98% of PTV should get at least 95% of prescribed dose

Patient QA measurement

Diameter tumour

Dose

Patient immobilization & positioning

≤ 20 mm: 21-30 mm: 31-35 mm:

1 x 2200 cGy 1 x 1900 cGy 1 x 1700 cGy 3 x 800 cGy

Treatment delivery

36-50 mm or close to OAR