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Table 4 Summary of dosimetric errors in the CTV and OARs for prostate cancer throughout the course of VMDWAT. Values are shown as means ± two standard deviations for the signed difference and those for the absolute difference in parentheses

From: Monitoring of mechanical errors and their dosimetric impact throughout the course of non-coplanar continuous volumetric-modulated arc therapy

Patient CTV Rectal wall Bladder wall
D99% (%) Dmean (%) D1% (%) V70Gy (%) Dmean (%) V70Gy (%) Dmean (%)
3 0.1 ± 0.2
[0.1 ± 0.2]
0.2 ± 0.3
[0.2 ± 0.3]
0.2 ± 0.5
[0.3 ± 0.5]
− 0.3 ± 0.3
[0.3 ± 0.3]
0.0 ± 0.1
[0.0 ± 0.1]
0.2 ± 0.1
[0.1 ± 0.1]
0.0 ± 0.2
[0.1 ± 0.1]
4 0.1 ± 0.4
[0.2 ± 0.3]
0.0 ± 0.3
[0.1 ± 0.2]
0.0 ± 0.4
[0.2 ± 0.2]
0.1 ± 0.8
[0.3 ± 0.5]
−0.1 ± 0.1
[0.1 ± 0.1]
0.0 ± 0.0
[0.0 ± 0.0]
0.0 ± 0.1
[0.1 ± 0.1]
5 −0.2 ± 0.1
[0.2 ± 0.2]
−0.1 ± 0.1
[0.1 ± 0.1]
0.0 ± 0.2
[0.1 ± 0.1]
0.0 ± 0.1
[0.0 ± 0.1]
−0.3 ± 0.2
[0.3 ± 0.2]
0.1 ± 0.1
[0.1 ± 0.1]
0.1 ± 0.1
[0.1 ± 0.1]
6 −0.2 ± 0.1
[0.2 ± 0.2]
−0.1 ± 0.2
[0.1 ± 0.1]
− 0.1 ± 0.3
[0.2 ± 0.2]
−0.3 ± 0.2
[0.3 ± 0.3]
0.0 ± 0.1
[0.1 ± 0.1]
0.0 ± 0.1
[0.0 ± 0.1]
0.0 ± 0.1
[0.1 ± 0.1]
7 0.1 ± 0.4
[0.2 ± 0.3]
0.0 ± 0.2
[0.1 ± 0.2]
0.0 ± 0.3
[0.1 ± 0.2]
0.0 ± 0.0
[0.0 ± 0.0]
0.1 ± 0.2
[0.1 ± 0.1]
0.0 ± 0.1
[0.0 ± 0.1]
0.0 ± 0.1
[0.0 ± 0.1]
8 0.0 ± 0.2
[0.1 ± 0.1]
−0.1 ± 0.2
[0.1 ± 0.1]
−0.1 ± 0.3
[0.2 ± 0.1]
− 0.2 ± 0.2
[0.2 ± 0.2]
−0.1 ± 0.1
[0.1 ± 0.1]
0.0 ± 0.0
[0.0 ± 0.0]
0.0 ± 0.1
[0.0 ± 0.0]
9 −0.1 ± 0.4
[0.2 ± 0.3]
−0.1 ± 0.3
[0.1 ± 0.2]
0.0 ± 0.4
[0.2 ± 0.2]
0.0 ± 0.0
[0.0 ± 0.0]
0.0 ± 0.3
[0.1 ± 0.1]
−0.2 ± 0.1
[0.2 ± 0.2]
−0.2 ± 0.1
[0.2 ± 0.1]
10 0.1 ± 0.2
[0.1 ± 0.2]
0.0 ± 0.1
[0.1 ± 0.1]
0.0 ± 0.1
[0.1 ± 0.1]
0.3 ± 0.2
[0.3 ± 0.2]
0.1 ± 0.2
[0.2 ± 0.1]
0.0 ± 0.0
[0.0 ± 0.0]
0.0 ± 0.1
[0.0 ± 0.1]
11 −0.1 ± 0.2
[0.1 ± 0.1]
−0.1 ± 0.2
[0.1 ± 0.1]
0.0 ± 0.2
[0.1 ± 0.1]
0.1 ± 0.3
[0.1 ± 0.2]
0.0 ± 0.1
[0.0 ± 0.1]
0.1 ± 0.1
[0.0 ± 0.1]
0.0 ± 0.1
[0.0 ± 0.1]
12 −0.1 ± 0.1
[0.1 ± 0.1]
−0.1 ± 0.2
[0.1 ± 0.1]
− 0.1 ± 0.2
[0.1 ± 0.1]
−0.1 ± 0.1
[0.1 ± 0.1]
− 0.3 ± 0.1
[0.3 ± 0.1]
0.0 ± 0.1
[0.0 ± 0.1]
0.1 ± 0.2
[0.1 ± 0.2]
13 −0.1 ± 0.3
[0.1 ± 0.1]
0.0 ± 0.3
[0.1 ± 0.2]
0.1 ± 0.4
[0.2 ± 0.3]
0.2 ± 0.1
[0.2 ± 0.1]
0.0 ± 0.2
[0.1 ± 0.1]
0.0 ± 0.1
[0.0 ± 0.1]
0.1 ± 0.1
[0.1 ± 0.1]
14 0.2 ± 0.3
[0.2 ± 0.3]
0.0 ± 0.3
[0.1 ± 0.2]
−0.1 ± 0.3
[0.1 ± 0.2]
0.2 ± 0.3
[0.2 ± 0.3]
0.0 ± 0.2
[0.1 ± 0.1]
0.0 ± 0.1
[0.0 ± 0.1]
0.0 ± 0.1
[0.1 ± 0.1]
15 0.1 ± 0.2
[0.1 ± 0.2]
0.2 ± 0.2
[0.2 ± 0.2]
0.2 ± 0.2
[0.2 ± 0.2]
0.2 ± 0.2
[0.2 ± 0.2]
−0.1 ± 0.1
[0.1 ± 0.1]
0.0 ± 0.0
[0.0 ± 0.0]
0.0 ± 0.1
[0.0 ± 0.1]
  1. Abbreviations: CTV clinical target volume, OARs organs at risk, VMDWAT volumetric-modulated Dynamic WaveArc therapy, D mean mean dose, D xx% dose covering xx% volume, V yy Gy volume receiving yy Gy