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. 2015 Mar 8;16(2):198–217. doi: 10.1120/jacmp.v16i2.5190

Table 6.

Differences for dosimetric parameters (target volumes and normal tissues) obtained for 12 real VMAT plans: 2 head and neck, 2 lung, 2 gastric, and 6 prostate plans (high‐, intermediate‐, and low‐risk)

Differences (%) Differences (%)
M3D CC CR M3D CC CR
P 1 P 2 P 1 P 2 P 1 P 2 P 1 P 2 P 1 P 2 P 1 P 2
H&N HR Prostate
PTV
D98
7.1 5.2
0.7
0.3
2.8
7.3 PTV Pr
D98
0.9 2.3 0.9 1.4
1.1
0.1
D2
0.7
0.7
2.0
0.5
0.5
0.5
D2
0.7
0.5 2.9
0.1
3.1
1.0
D50
0.1 0.3 0.0
1.1
2.2
0.2
D50
0.0 1.0
0.4
0.2
2.6
1.6
Dm
1.0 0.7 0.2
0.7
2.0
0.5
Dm
0.1
1.1
0.6
0.3
2.5
1.4
Cord
Dmax
1.6
2.7
5.0
0.3
3.1
4.6 PTV SV
D98
0.2
1.7
0.8
0.4 0.2 3.1
R Parot
Dm
5.9
7.3
1.9 0.5
1.9
0.9
D2
0.3 1.4
0.6
1.1
2.6
0.6
L Parot
Dm
3.2
8.7
0.1 0.4
1.4
5.2
D50
0.9 0.7
0.3
0.3
0.4
1.0
Dm
0.5 1.1
0.3
0.6
1.2
0.2
Lung PTV PLN
D98
0,8
0.2 2.0 1.5
1.9
2.1
PTV
D98
4.2 2.8 0.5 0.6 0.3 0.1
D2
0.7 0.2
1.0
0.8
2.9
2.2
D2
1.6
2.1
1.2
1.2
1.9
1.8
D50
2.1
0.9
0.5
0.1
2.7
1.8
D50
0.3
0.9
1.0
0.6
1.9
1.6
Dm
1.7
0.8
0.4
0.0
2.5
1.8
Dm
0.5
0.6
0.9
0.6
1.7
1.5
Rectum
V50
1.0 3.7 0.7 1.0 2.4 3.8
Cord
Dmax
6.8
3.7
9.8
0.2
5.0
5.1
D60
1.5 3.0 0.5 0.9 1.7 2.9
Heart
V46
0.1 0.2 0.1 0.0
0.3
0.5
V65
1.5 2.7 0.3 0.6 2.1 2.8
Dm
12
0.6
2.7
0.4
4.0
2.5
V70
1.6 2.7 0.4 0.6 1.1 2.3
R Lung
V20
0.5 0.3
0.2
0.6
0.6
1.0
V75
1.5 2.6 0.0 0.6 1.2 2.0
Dm
0.1 0.2 2.4 1.8 0.7
3.0
Dm
0.4 2.9 0.8 1.4 1.1 3.9
L Lung
V20
0.6 0.3 0.0 0.0
0.1
0.1
Bladder
V65
0.7 1.3 0.4 0.9
2.0
2.7
Dm
0.5
0.8
1.3 1.7
0.4
0.5
V70
0.7 1.5 0.5 1.3
1.9
2.6
V75
0.5 1.3 0.8 1.4
2.0
2.4
Gastric
V80
0,0 0.5 0.2 0.3
3.1
1.8
PTV
D98
1.0
0.5 0.5 1.1
0.9
2.7
Dm
1.1
0.3 0.1 0.8
3.2
2.7
D2
0.6
2.0
0.4
1.7
1.0
1.2
R Fem
Dmax
2.8 5.1 2.3 4.4
0.4
2.7
D50
0.6
2.1
0.4
0.7
0.6
1.0
L Fem
Dmax
2.2 4.0 3.0 3.5
1.6
0.7
Dm
0.6
1.9
0.3
0.6
0.7
0.7
Cord
Dmax
0.9
1.0
0.2
1.3
0.3
1.5
Liver
V30
0.2
0.4
0.4 0.4 0.4 0.0
Dm
2.1
1.3
1.9 0.9 1.1 0.5
R Kidney
V18
0.1
1.0
0.8 0.9 1.1 4.2
Dm
6.0
2.7
4.5 1.4 3.6 5.1 IR Prostate
L Kidney
V18
0.6
0.3
0.8 0.8
0.6
1.6 PTV Pr
D98
3.4 4.3 0.6 1.1 1.5 2.6
Dm
5.5
1.6
3.6 2.0
0.3
4.2
D2
1.1 1.2
0.2
0.2
0.6
0.7
D50
1.3 1.1 0.2 0.2
0.5
0.7
LR Prostate
Dm
1.6 1.8 0.0 0.3
0.6
0.5
PTV Pr
D98
2.4 3.1 0.4 0.7 1.6 1.9 PTV SV
D98
0.9 1.1
0.7
0.1 1.0 0.7
D2
0.8
0.1
0.1
0.4
0.6
0.8
D2
1.0 1.0 0.0 0.1
0.6
1.4
D50
0.4 0.1 0.2
0.1
0.7
0.8
D50
0.9 1.3 0.3 0.7 0.7 0.1
Dm
0.7 0.4 0.2 0.0
0.5
0.6
Dm
1.1
7.2
0.2 0.0 0.4
0.6
Rectum
V50
1.1 1.4 0.4 0.4 2.2 2.1 Rectum
V50
2.3 1.8 0.9 0.9 3.8 3.3
V60
1.0 1.8 0.5 0.6 2.4 3.4
V60
2.0 2.2 1.0 0.6 2.1 2.3
V65
0.9 1.9 0.1 0.1 1.6 1.5
V65
2.0 1.9 0.4 0.4 2.2 2.6
V70
1.0 1.6 0.3 0.2 0.9 2.6
V70
2.0 2.2 0.7 0.4 2.2 1.8
V75
1.2 2.0 0.3 1.2 1.4 2.7
V75
2.0 2.0 0.4 0.7 1.3 2.0
Dm
0.1
0.3
2.3 2.0 5.7 7.0
Dm
2.4 1.2 2.1 2.3 6.4 4.5
Bladder
V65
0.4 1.0 0.1 0.6
0.5
1.9
Bladder
V65
1.0 1.2 0.5 0.4
1.4
1.9
V70
0.3 0.8 0.1 0.8
0.5
1.7
V70
0.9 1.3 0.4 0.5
1.4
2.0
V75
0.1 0.8 0.1 0.5
0.4
2.3
V75
0.9 1.4 0.4 0.5
1.3
2.0
V80
0.0
0.9
0.0 0.0 0.0
3.5
V80
0.3 0.6 0.0 0.2
0.6
1.8
Dm
5.2
1.3
4.9 2.5
2.4
3.4
Dm
1.2
1.1 2.4 2.3
3.3
3.7
R Fem
Dmax
0.3
0.0 0.6 2.2 2.2 1.5 R Fem
Dmax
0.0 0.9 2.1 2.0 2.6 2.8
L Fem
Dmax
0.7
0.5
1.9 1.3 0.6 0.1 L Fem
Dmax
1.9 1.0 2.3 2.6 2.0 3.0

M3D=Mobius3D; CC=COMPASS dose calculation; CR=COMPASS dose reconstruction; P=patient; H&N=head and neck; parot=parotid glands; Pr=prostate; SV=seminal vesicles; PLN=pelvic lymph nodes; Fem=femoral heads.