Passive proton therapy vs. IMRT planning study with focal boost for prostate cancer

Radiation Oncology

Table 1 Average dosimetric data and plan evaluation parameters for the PTVs

Target	Plans	Prescription	Inhomogeneity						Conformity
Target	Plans	Volume^a	D _min ^b	D _max ^b	D _mean ^c	p*	IC	p*	CN	p*
PSV-PPS	Proton	99.0 %	96.3 %	175.1 %	69.3	<0.001	0.571	0.029	0.051	0.796
PSV-PPS	IMRT	99.0 %	96.6 %	158.7 %	63.7	<0.001	0.491	0.029	0.054	0.796
PPS-PGTVs	Proton	99.2 %	98.4 %	133.1 %	83.9	0.019	0.290	<0.001	0.328	0.143
PPS-PGTVs	IMRT	99.2 %	96.2 %	135.0 %	81.7	0.019	0.333	<0.001	0.392	0.143
PGTVs	Proton	98.7 %	99.3 %	104.0 %	91.6	<0.001	0.046	<0.001	0.216	<0.001
PGTVs	IMRT	98.7 %	97.8 %	107.9 %	93.9	<0.001	0.097	<0.001	0.358	<0.001

ISSN: 1748-717X