BioMed Research International / 2018 / Article / Tab 5

Research Article

The Dosimetric Impact of Shifts in Patient Positioning during Boron Neutron Capture Therapy for Brain Tumors

Table 5

Doses (± SD) of various normal tissues with tumor depths of 6.5 cm and 2.5 cm and with 0-3 cm head-shifts.

OrganBaselineLS1LS2LS3OS1OS2OS3
Gy-EqGy-Eq (± SD)Gy-Eq (± SD)Gy-Eq (± SD)Gy-EqGy-EqGy-Eq

NB3.821.643.78
(0.03)
1.62
(0.01)
3.63
(0.04)
1.56
(0.02)
3.42
(0.05)
1.46
(0.02)
3.641.563.471.493.301.41
12.265.2511.99
(0.16)
5.14
(0.07)
11.70
(0.31)
5.01
(0.13)
11.50
(0.24)
4.93
(0.10)
11.634.9811.174.7810.724.59
CW1.830.781.79
(0.08)
0.77
(0.04)
1.73
(0.20)
0.74
(0.09)
1.63
(0.26)
0.70
(0.11)
1.800.771.730.741.620.70
L-ON0.850.360.81
(0.12)
0.35
(0.05)
0.83
(0.15)
0.36
(0.06)
0.84
(0.19)
0.36
(0.08)
0.820.350.760.330.680.29
R-ON0.920.390.83
(0.07)
0.36
(0.03)
0.79
(0.14)
0.34
(0.06)
0.79
(0.24)
0.34
(0.10)
0.820.350.790.340.730.31
L-lens0.290.120.29
(0.03)
0.12
(0.01)
0.30
(0.05)
0.13
(0.02)
0.29
(0.07)
0.12
(0.03)
0.320.140.240.100.210.09
R-lens0.320.140.30
(0.03)
0.13
(0.01)
0.33
(0.10)
0.14
(0.04)
0.29
(0.10)
0.13
(0.04)
0.320.140.220.090.220.09
L-eye0.370.160.36
(0.04)
0.15
(0.02)
0.38
(0.07)
0.16
(0.03)
0.37
(0.09)
0.16
(0.04)
0.350.150.320.140.290.13
R-eye0.390.160.39
(0.04)
0.16
(0.02)
0.36
(0.08)
0.15
(0.03)
0.35
(0.13)
0.15
(0.05)
0.340.150.300.130.280.12
BS4.041.733.86
(0.33)
1.65
(0.14)
3.74
(0.62)
1.60
(0.27)
3.53
(0.87)
1.51
(0.37)
3.751.613.531.513.361.44

Gy-Eq is the unit of the values reported. NB: normal brain; CW: Circle of Willis; L: left; R: right; ON: optic nerve; BS: brain stem. D: dose; LS1: 1 cm lateral shift; LS2: 2 cm lateral shift; LS3: 3 cm lateral shift; OS1: 1 cm outward shift; OS2: 2 cm outward shift; OS3: 3 cm outward shift. The mean doses reported for LS1, LS2, and LS3 represent the mean values of the doses for left/right and superior/inferior shifts.

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