Table 1 Patient characteristics

Age (years), median, range

58.5, 36–88

Gender (n), f/m

6/6

Primary tumor (n)

 Lung cancer

6

 Breast cancer

3

 Other

3

KPS at initial presentation, median, range

90, 60–100

PTV of metastases/resection cavities (ml)

Median, range

19.0 (4.1–48.7)

PTV of whole brain (ml)

Median, range

1724.5 (1465.4–2147.5)

Total hippocampal volume (ml)

Median, range

3.5 (2.7−5.8)

Number of metastases (n), median, range

9. 6–17