Table 2.

Dose difference for specific percentage volumes (V) between the three schemes in case 1

Percentage volume (%)	Scheme 2 – Scheme 1					Dose difference (%) Scheme 3 – Scheme 1					Scheme 3 – Scheme 2
	$W_{NT}=20$	$W_{NT}=40$	$W_{NT}=60$	$W_{NT}=80$	$W_{NT}=100$	$W_{NT}=20$	$W_{NT}=40$	$W_{NT}=60$	$W_{NT}=80$	$W_{NT}=100$	$W_{NT}=20$	$W_{NT}=40$	$W_{NT}=60$	$W_{NT}=80$	$W_{NT}=100$
$V^{\mathrm{T}\mathrm{V}}(90)$	0	1	1	1	2	0	1	1	1	2	0	0	0	0	0
$V^{\mathrm{T}\mathrm{V}}(80)$	0	$-1$	0	0	0	$-1$	$-1$	0	0	0	$-1$	0	0	0	0
$V^{\mathrm{C}\mathrm{O}}(60)$	$-13$	$-15$	$-16$	$-16$	$-16$	$-13$	$-16$	$-16$	$-16$	$-16$	0	$-1$	0	0	0
$V^{\mathrm{C}\mathrm{O}}(40)$	$-15$	$-17$	$-16$	$-15$	$-15$	$-16$	$-18$	$-17$	$-16$	$-16$	$-1$	$-1$	$-1$	$-1$	$-1$
$V^{\mathrm{N}\mathrm{T}}(50)$	$-2$	$-1$	$-1$	$-1$	$-1$	$-2$	$-2$	$-1$	$-1$	$-1$	0	$-1$	0	0	0
$V^{\mathrm{N}\mathrm{T}}(30)$	$-1$	$-1$	$-1$	$-1$	0	$-1$	$-1$	$-1$	$-1$	0	0	0	0	0	0

$W=\text{weighting}\hspace{0.17em}\text{factor}$; $\text{NT}=\text{normal}\hspace{0.17em}\text{tissue}$; $\text{TV}=\text{target}\hspace{0.17em}\text{volume}$; $\text{CO}=\text{critical}\hspace{0.17em}\text{organ}$