1515 / 1544
Murshed
IJROBP 2004
(sliding
window)
41 pts
PTV:
623cc (75-1645)
Conformity Index
3D vs IMRT:
1.54 vs 1.41 (p<0.01)
(IMRT benefit ≈
21%)
Liu
IJROBP 2004
(sliding
window)
10 pts
PTV: 403 (65-
762)
3D IMRT
IMRT
benefit:
CI min 1.33 vs 1.07
20%
CI max 4.53 vs 2.09 54%
CI med 2.35 vs 1.37 42%
p=0.012
Christian
IJROBP 2007
(step and
shoot)
10 pts
PTV 197 (103-
271 cc)
PTV90/V20
IMRT benefit ≈ 25%
(12-36%);
50% IMRT non planar or 9 fields
3D vs IMRT: PTV