| |
Median (Range)
|
|---|
|
IMRT
|
VMAT
|
P*
|
|---|
|
bPTV
|
|
Dmin (Gy)
|
56.8 (48.4–59.8)
|
58.2 (49.4–60.0)
|
0.15
|
|
Dmean (Gy)
|
61.8 (61.1–62.5)
|
61.9 (61.1–62.8)
|
0.02
|
|
Dmax (Gy)
|
64.1 (62.6–66.4)
|
63.8 (62.0–65.5)
|
0.05
|
|
V60Gy (%)
|
99.0 (90.5–100.0)
|
99.4 (94.7–100.0)
|
0.19
|
|
II (Gy)
|
2.2 (1.2–5.3)
|
1.9 (0.8–3.1)
|
0.04
|
|
PTV
|
|
Dmin(Gy)
|
45.3 (33.6–48.7)
|
42.7 (23.9–48.1)
|
0.003
|
|
Dmean (Gy)
|
56.9 (53.8–58.7)
|
56.4 (54.2–59.3)
|
<0.001
|
|
Dmax (Gy)
|
64.1 (62.6–66.7)
|
63.8 (62.0–65.5)
|
0.05
|
|
V50Gy (%)
|
99.1 (95.1–99.9)
|
98.5 (95.2–99.9)
|
0.02
|
|
II (Gy)
|
11.2 (9.8–12.7)
|
11.6 (10.2–12.5)
|
0.07
|
-
IMRT intensity modulated radiation therapy, VMAT volumetric arc therapy, bPTV boost planning target volume prescribed to 60 Gy, PTV planning target volume prescribed to 50 Gy, D
min
minimum dose, D
mean
mean dose, D
max
maximum dose, V
XXGy
volume receiving XX Gy or more, II inhomogeneity index
- *From Wilcoxon-Mann–Whitney rank sum analysis
