Table 4 Dosimetric parameters for planning target volumes in each technique

C-IMRT

A-IMRT

VMAT

V95 (%)

99.62 ± 0.28^a

(98.62–99.91)

99.15 ± 0.43^b

(98.24–99.81)

99.04 ± 0.70^b

(97.77–99.94)

V > 107 (%)

0.02 ± 0.06^a

(0.00–0.26)

0.20 ± 0.29^b

(0.00–0.81)

0.02 ± 0.03^a

(0.00–0.11)

D2 (cGy)

5288 ± 31^a

(5201–5330)

5323 ± 52^b

(5192–5436)

5277 ± 46^a

(5216–5367)

D98 (cGy)

4948 ± 43^a

(4828–5033)

4905 ± 42^b

(4819–4962)

4898 ± 89^b

(4752–5048)

D50 (cGy)

5208 ± 29^a

(5120–5244)

5219 ± 28^a

(5171–5266)

5176 ± 46^b

(5112–5260)

HI

0.06 ± 0.00^a

(0.05–0.08)

0.08 ± 0.01^b

(0.05–0.12)

0.07 ± 0.02^b

(0.04–0.11)

CI

0.79 ± 0.04^a

(0.74–0.87)

0.76 ± 0.05^b

(0.68–0.86)

0.83 ± 0.03^c

(0.76–0.88)

MU

1036 ± 129^a

(900–1297)

1249 ± 149^b

(1048–1558)

567 ± 68^c

(445–673)