From: Whole brain radiotherapy versus stereotactic radiosurgery for 4–10 brain metastases: a phase III randomised multicentre trial
PTV of the largest brain metastasis
Doses in each PTV
BM in brainstem (GTV = PTV)
<1 cm3
1 × 24 Gy
1× 16Gy
1–10 cm3
1 × 21 Gy
1 x 16Gy
10–20 cm3
1 × 18 Gy
20–65 cm3
1 × 15 Gy
No SRS