Table 2 Prostate volumes in descending order as segmented on the treatment planning CT and on the MR images before radiotherapy (MRI baseline ), in the middle of the treatment (MRI mid ) and at the end of treatment (MRI end )
From: Change in prostate volume during extreme hypo-fractionation analysed with MRI
Pat # | CT | MRIbaseline | MRImid | MRIend | |||
|---|---|---|---|---|---|---|---|
Abs. vol. (cm3) | Rel. vol. | Abs. vol. (cm3) | Abs. vol. (cm3) | Rel. vol. | Abs. vol. (cm3) | Rel. vol. | |
1 | 35.3 | 1.579 | 22.4 | 26.7 | 1.191 | 27.2 | 1.217 |
2 | 44.5 | 1.369 | 32.5 | 38.6 | 1.187 | 34.9 | 1.074 |
3 | 33.8 | 0.999 | 33.9 | 39.0 | 1.151 | 33.1 | 0.976 |
4 | 47.8 | 1.105 | 43.3 | 47.5 | 1.098 | 46.2 | 1.067 |
5 | 45.8 | 1.054 | 43.4 | 48.9 | 1.126 | 48.7 | 1.122 |
6 | 64.8 | 1.455 | 44.5 | 53.3 | 1.198 | 44.1 | 0.991 |
7 | 71.6 | 1.597 | 44.8 | 49.8 | 1.112 | 46.6 | 1.040 |
8 | 43.5 | 0.906 | 48.0 | 48.7 | 1.015 | 48.0 | 1.000 |
9 | 79.4 | 1.648 | 48.2 | 55.5 | 1.152 | 54.4 | 1.129 |
10 | 73.0 | 1.511 | 48.4 | 48.9 | 1.011 | 50.1 | 1.037 |
11 | 59.4 | 1.102 | 53.9 | 60.8 | 1.128 | 55.2 | 1.023 |
12 | 57.0 | 1.037 | 54.9 | 65.3 | 1.189 | 64.4 | 1.172 |
13 | --* | --* | 57.2 | 66.6 | 1.166 | 62.2 | 1.089 |
14 | 83.8 | 1.196 | 70.1 | 88.7 | 1.265 | 78.0 | 1.112 |
15 | 99.0 | 1.347 | 73.5 | 80.0 | 1.088 | 74.1 | 1.008 |
16 | 79.4 | 1.066 | 74.5 | 95.5 | 1.282 | 96.2 | 1.291 |
17 | 96.5 | 1.145 | 84.3 | 96.8 | 1.148 | --‡ | --‡ |
18 | 105.8 | 1.242 | 85.2 | 96.3 | 1.131 | 101.4 | 1.190 |
19 | 106.2 | 1.021 | 104.0 | 116.8 | 1.123 | 115.6 | 1.112 |
20 | 153.7 | 1.045 | 147.1 | 155.0 | 1.054 | 152.9 | 1.040 |
Mean | 72.7 | 1.233 | 60.7 | 68.9 | 1.141 | 64.9 | 1.089 |
SD | 30.4 | 0.232 | 28.7 | 31.3 | 0.070 | 31.9 | 0.084 |
p-value † | 0.0001 | 0.0004 | --- | <0.0001 | <0.0001 | 0.0008 | 0.0002 |