Table 2.

Quantitative evaluation of contour and dose deformation for different organs, expressed as mean ± standard deviation.

	Volume of interest
Quantity	CNS	Ocular globes	Lungs	Liver	Kidneys	Bladder
DSC	0.95 ± 0.05	0.85 ± 0.04	0.96 ± 0.01	0.91 ± 0.03	0.83 ± 0.06	0.65 ± 0.16
JC	0.92 ± 0.08	0.74 ± 0.06	0.92 ± 0.02	0.83 ± 0.5	0.71 ± 0.08	0.50 ± 0.16
${\mathrm{DT}}_{\mathrm{avg}}$ (mm)	0.7 ± 1.0	0.9 ± 0.4	0.8 ± 0.3	2.7 ± 1.1	2.5 ± 1.3	7.1 ± 3.8
$\mathrm{\Delta }\text{TR}$ (mm)	2.9 ± 5.7	1.7 ± 0.8a	1.3 ± 0.7a	4.9 ± 2.7	7.0 ± 4.5a	9.6 ± 4.6
$\mathrm{RDA}$	0.02 ± 0.04	0.04 ± 0.04	0.05 ± 0.05	0.06 ± 0.03	0.09 ± 0.06	0.29 ± 0.28
$\mathrm{DOO}$	0.92 ± 0.07	0.75 ± 0.07	0.86 ± 0.05	0.81 ± 0.06	0.65 ± 0.09	0.36 ± 0.18
Number of subjects in analysis (no, %)	53	34	52	49	49	49
	(100%)	(64%)	(98%)	(92%)	(92%)	(92%)
Volume (ml), median (range)	1331	16	597	645	121	64
	(29–1891)	(10–21)	(49–2834	(328–1632)	(62–284)	(10–350)
Mean organ dose (Gy), median (range)	23.6	26.2	3.5	6.7	5.2	1.1
	(1.3–38.9)	(0.2–35.9)	(0–16.4)	(1.1–25.0)	(1.4–14.1)	(0–16.3)

Note. DSC = dice similarity coefficient

JC = Jaccard coefficient

${\mathrm{DT}}_{\mathrm{avg}}$ = average distance between surfaces

$\mathrm{\Delta }\text{TR}$ = distance between centroids

$\mathrm{RDA}$ = relative difference of areas of DVHs

$\mathrm{DOO}$ = dose-organ overlap

CNS = brain and spinal canal.

^aFor organs composed of two separate volumes, $\mathrm{\Delta }\text{TR}$ reported is the maximum value of the individual sub-volumes.