TVD 2016

Lung doses

• 2 plans compared • IMRT : ‘CRT’

Lung dose-volume parameters Pt B

60.0% 30.0% 40.0% 50.0% 0.0% 10.0% 20.0%

• Mean lung dose same    = 9 Gy

Tomo B Conv B

volume

%

• DVH different

V5

V10 V13

V15

V20

Dose-volume parameter

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