Table 3 Brain dose and V12Gy, V10Gy, V8Gy, and V5 Gy among DCAT and VMAT plans with 1–10 or > 10 lesions

Brain dose

Mean dose (SD)

1.7 (0.6)

1.88 (0.8)

2.64 (1.3)

3.01 (1.5)

Median dose (SD)

1.63

1.77

2.3

2.7

Range

0.65–3.0

0.55–3.48

0.65–5.62

0.55–5.85

V12Gy

Mean (SD)

7.7 (5.0)

10.5 (6.8)

25.8 (10.6)

39.7 (13.7)

Median

6.2

8.2

22.7

38.7

Range

1.87–18.1

2.2–26.4

12.2–45.9

21.9–62.3

V10Gy

Mean (SD)

10.9 (7.3)

14.7 (10.6)

40.9 (17.5)

63.5 (23.7)

Median

8.8

11.3

37.4

58.9

Range

2.6–27.2

2.9–39.6

17.4–74.2

33.7–100.6

V8Gy

Mean (SD)

17.3 (13.5)

25.4 (17.4)

74.0 (40–0)

113.9 (52.8)

Median

13.2

19.5

62.8

102.7

Range

3.7–157

4.6–184

27.2–157

58.2–184.0

V5Gy

Mean (SD)

45.7 (40.4)

73.0 (57.6)

291.2 (174.9)

427.8 (183.3)

Median

31.4

53.9

259.2

368.6

Range

8.18–153.4

11.3–194.0

77.3–701.8

206.4–707.8

Right hippocanpus

Mean dose (SD)

1.34 (0.8)

1.67 (1.1)

3.8 (1.7)

4.7 (2.1)

Median dose

1.0

1.54

3.2

3.9

Range

0.6–3.6

0.6–4.9

1.9–6.9

2.6–8.6

Left hippocanpus

Mean dose (SD)

1.69 (0.85)

1.92 (1.2)

3.6 (1.3)

4.7 (1.8)

Median dose

1.61

1.65

3.0

4.9

Range

0.5–4.3

0.5–6.2

2.2–6.4

2.99–9.8