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. 2014 Sep 8;15(5):207–215. doi: 10.1120/jacmp.v15i5.4990

Table 1.

Measured point doses and percent differences between doses measured and calculated by the treatment planning system (TPS) and Mobius3D (M3D) for IMRT and VMAT treatment plans of the AAPM Task Group 119 structure sets. Percent differences are displayed as the mean ±standard error (N=5)

IMRT VMAT
% diff % diff
Location Measured Dose (cGy) TPS M3D Measured Dose (cGy) TPS M3D
Multitarget
Central target
213.9±0.3
0.4±0.1
0.6±0.1
219±0.2
0.3±0.1
1.5±0.1
Superior target
118.5±0.8
0.6±0.4
3.3±0.4
108±0.2
0.1±0.1
0.5±0.1
Inferior target
59.8±0.5
2.8±0.2
0.1±0.2
53.7±0.2
1.2±0.1
1.2±0.1
Prostate
PTV
182.6±0.2
0.8±0.1
0.2±0.1
184.3±0.3
0.6±0.2
0.2±0.2
Rectum
134.4±0.5
1.6±0.3
2.5±0.3
144.0±0.3
1.5±0.2
1.7±0.2
Bladder
138.8±0.8
1.3±0.4
1.2±0.4
129.4±0.8
2.8±0.4
4.2±0.4
Head and neck
PTV
207.1±0.1
2.9±0.0
3.5±0.0
198.0±0.3
4.2±0.1
3.5±0.1
Spinal cord
124.1±1.4
1.4±0.7
2.0±0.7
127.4±0.9
4.0±0.4
2.8±0.4
C‐shape
Central core
53.2±0.3
0.9±0.2
3.4±0.2
44.0±0.3
2.0±0.1
4.0±0.1
Outer target
212.0±0.3
1.8±0.1
5.5±0.1
202.0±0.7
2.8±0.3
3.5±0.3
Average
0.8±0.5
0.6±0.9
1.9±0.5
1.6±0.7
|Average|
1.5±0.3
2.2±0.6
2.0±0.5
2.3±0.5