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47

V

20

Actuarial incidence

≥

grade 2 pneumonitis

at 24 months

<22%

0 %

22-31%

7 %

32-40%

13 %

>40%

36 %

Ref:

Graham MV et al. IJROBP 45, 323-329, 1999

Mean (1SD)

V20 (%)

19.9(5.0)

17.3(5.1)

mean lung (Gy)

14.8(3.1)

12.0(3.3)

CI

0.46(0.1)

0.60(0.0)

MLC versus Cerrobend blocking:

mlc

cerrobend

Lagerwaard et al: R&O, 2001

N=8