|
Characteristic
|
Number of patients/Median value (Range)
|
P*
|
|---|
|
IMRT
|
VMAT
|
|---|
|
Diagnosis
|
0.49
|
|
Glioblastoma
|
44
|
43
| |
|
Oligodendroglioma
|
1
|
0
|
|
Astrocytoma
|
0
|
2
|
|
Tumor Location
|
0.32
|
|
Frontal
|
14
|
23
| |
|
Occipital
|
2
|
1
|
|
Parietal
|
8
|
6
|
|
Temporal
|
13
|
6
|
|
Thalamus
|
1
|
1
|
|
2 or more lobes
|
7
|
8
|
|
Tumor Side
|
0.34
|
|
Bilateral
|
4
|
5
| |
|
Left
|
24
|
17
|
|
Right
|
17
|
23
|
|
bPTV Volume (cc)
|
85.1 (11.0–328.5)
|
81.4 (28.3–285.3)
|
0.94
|
|
PTV Volume (cc)
|
359.3 (128.9–779.1)
|
370.8 (193.9–877.5)
|
0.18
|
|
Brain Volume (cc)
|
1301.5 (1022.2–1849.0)
|
1326.9 (1016.0–1658.6)
|
0.23
|
|
# Beams
|
<0.001
|
|
2
|
0
|
38
| |
|
3
|
0
|
7
|
|
5
|
43
|
0
|
|
6
|
2
|
0
|
|
# Couch Angles
|
<0.001
|
|
1
|
0
|
39
| |
|
2
|
0
|
6
|
|
4
|
45
|
0
|
|
Multileaf Collimator
|
0.02
|
|
High Definition
|
33
|
42
| |
|
Standard
|
12
|
3
|
|
# Monitor Units
|
347 (285–487)
|
453 (274–665)
|
<0.001
|
|
Treatment Time
|
15.0 (7.7–21)
|
10.0 (6.3–15.3)
|
<0.001
|
-
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
- *From Fisher’s exact test or Wilcoxon-Mann–Whitney rank sum analysis
