Clinical Study
Dosimetric Studies of Mixed Energy Intensity Modulated Radiation Therapy for Prostate Cancer Treatments
Table 2
Dose volume comparison for three plans (6 MV, 15 MV, and mixed energy) in two algorithms.
| Volume | Cone collapsed convolution | Pencil beam | 6 MV | 15 MV | Mixed energy | Avg. | 6 MV | 15 MV | Mixed energy | Avg. | (Mean ± standard dose) | | (Mean ± standard dose) | |
| PTV | | | | | | | | | MaxDose (Gy) | | | | | | | | 0.034 | MinDose (Gy) | | | | | | | | 0.051 | AvgDose (Gy) | | | | | | | | 0.013 | Rectum | | | | | | | | | V66 Gy (%) | | | | | | | | 0.048 | V40 Gy (%) | | | | | | | | 0.058 | V20 Gy (%) | | | | | | | | 0.031 | D50% (Gy) | | | | | | | | 0.05 | Bladder | | | | | | | | | V66 Gy (%) | | | | | | | | 0.026 | V40 Gy (%) | | | | | | | | 0.003 | V20 Gy (%) | | | | | | | | 0.009 | D50% (Gy) | | | | | | | | 0.034 | Femoral heads | | | | | | | | | V20 Gy (%) | | | | | | | | 0.029 | D50% (Gy) | | | | | | | | 0.032 | Monitor units | | | | | | | | | AvgMU | | | | | | | | 0.028 |
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Avg.: average; MaxDose: maximum dose; MinDose: minimum dose; AvgDose: average dose; and MU: monitor units.
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