Course book Advanced Treatment Planning 2018

Lung doses

• 2 plans compared • IMRT : ‘CRT’

Lung dose-volume parameters Pt B

60.0%

50.0%

• Mean lung dose same = 9 Gy • DVH different

40.0%

IMRT CRT

30.0%

20.0%

% volume

10.0%

0.0%

V5

V10

V13

V15

V20 Gy

Dose-volume parameter

• In reporting, the DVH (or some points on it) may be useful