Radiotherapy for Adult Medulloblastoma: Evaluation of Helical Tomotherapy, Volumetric Intensity Modulated Arc Therapy, and Three-Dimensional Conformal Radiotherapy and the Results of Helical Tomotherapy Therapy
Table 3
Target dose parameters.
Category
Patient
Patient 1
Patient 2
Patient 3
Patient 4
Patient 5
HT
VMAT
3D-CRT
HT
VMAT
3D-CRT
HT
VMAT
3D-CRT
HT
VMAT
3D-CRT
HT
VMAT
3D-CRT
Time
682
326
74
728
326
67
676
333
72
605
333
66
610
330
87
99.22
98.81
98.95
99.83
99.02
99.67
97.69
99.92
99.93
99.45
99.49
99.45
99.80
98.65
97.58
0
16.00
63.84
4.09
20.62
38.87
0.37
0.50
3.09
0.01
8.47
3.31
0.39
2.28
51.36
32.32
33.82
35.02
37.83
39.06
39.12
33.05
32.66
33.12
37.55
38.92
39.14
38.22
38.62
42.07
29.38
28.80
29.04
35.42
33.28
34.08
27.14
30.37
30.08
34.84
35.30
34.80
35.51
33.70
30.14
31.54
31.92
32.93
36.61
36.71
37.27
32.18
31.71
31.75
36.71
37.59
37.16
36.81
37.29
38.45
DHI
1.05
1.08
1.13
1.04
1.09
1.09
1.08
1.05
1.07
1.03
1.06
1.07
1.04
1.06
1.10
CI
0.87
0.83
0.68
0.85
0.87
0.66
0.86
0.87
0.68
0.85
0.85
0.68
0.92
0.88
0.74
Time: beam-on time (second); : % prescription dose delivered to percent volume; : irradiation dose delivered to 1% volume, representing the maximum dose; : irradiation dose delivered to 99% volume, representing the minimum dose; : average irradiation dose.
