Table 4 A summary of the average dosimetric parameters for \(\mathbb {P}^{\text {WH}}\), \(\mathbb {P}^{\text {RF}}\), \(\mathbb {P}^{\text {WF}}\) for brachytherapy
Parameter | Whole gland homogeneous (\(\mathbb {P}^{\text {WH}}\)) | Whole gland with a focal boost (\(\mathbb {P}^{\text {WF}}\)) | Focal (\(\mathbb {P}^{\text {RF}}\)) | (\(\mathbb {P}^{\text {WF}}-\mathbb {P}^{\text {WH}}\)) | (\(\mathbb {P}^{\text {RF}}-\mathbb {P}^{\text {WH}}\)) |
|---|---|---|---|---|---|
Number of needles | 22.00 | 22.10 | 17.20 | 0.10 | -4.80 |
Number of seeds | 74.80 | 74.20 | 43.00 | -0.60 | -31.80 |
Prostate | |||||
D 90 (Gy) | 181.14 | 185.56 | 64.11 | 4.41 | -117.03 |
V 100 (%) | 99.80 | 99.85 | 56.17 | 0.05 | -43.63 |
V 150 (%) | 58.11 | 61.47 | 40.72 | 3.36 | -17.38 |
V 200 (%) | 22.51 | 23.61 | 25.76 | 1.10 | 3.25 |
Urethra | |||||
D 10 (Gy) | 192.17 | 195.62 | 182.82 | 3.46 | -9.34 |
V 100 (%) | 96.55 | 96.62 | 41.38 | 0.07 | -55.1 |
Rectum | |||||
D 1c c. (Gy) | 119.81 | 121.77 | 116.79 | 1.96 | -3.02 |
D 2c c. (Gy) | 102.00 | 102.85 | 92.40 | 0.85 | -9.60 |
V 100 (%) | 1.14 | 1.41 | 1.63 | 0.27 | 0.49 |
Bladder | |||||
D 2c c. (Gy) | 105.20 | 102.07 | 46.96 | -3.13 | -58.24 |
PTV | |||||
D 90 (Gy) | 174.16 | 174.08 | 248.51 | -0.09 | 74.35 |
V 100 (%) | 99.10 | 98.28 | 99.99 | -0.82 | 0.90 |
V 150 (%) | 55.05 | 55.25 | 97.99 | 0.20 | 42.94 |
V 200 (%) | 21.67 | 21.64 | 76.21 | -0.02 | 54.54 |