Table 6.
Comparative statistics of the seven dose parameters obtained under the existing and proposed patterns
| Dose parameters | n | Min. | Max. | Mean | CV (%) | r | p-value |
|---|---|---|---|---|---|---|---|
| Point B dose I (%) | 185 | 17.40 | 28.90 | 23.82 ± 1.64 | 6.88 | 0.802 | 0.000 |
| Point B dose II (%) | 185 | 17.20 | 28.10 | 22.23 ± 1.45 | 6.52 | ||
| TRAK I (cGy m−2) | 185 | 0.224 | 0.551 | 0.373 ± 0.073 | 19.57 | 0.974 | 0.000 |
| TRAK II (cGy m−2) | 185 | 0.211 | 0.510 | 0.351 ± 0.066 | 18.80 | ||
| Total time I (min) | 185 | 7.98 | 32.28 | 18.43 ± 5.48 | 29.73 | 0.989 | 0.000 |
| Total time II (min) | 185 | 7.50 | 28.73 | 17.31 ± 4.93 | 28.48 | ||
| TTI I (Gy m2 s)/(h Gy) | 185 | 0.104 | 0.332 | 0.187 ± 0.045 | 24.06 | 0.985 | 0.000 |
| TTI II (Gy m2 s)/(h Gy) | 185 | 0.113 | 0.332 | 0.176 ± 0.046 | 26.14 | ||
| ICRU volume I (cm3) | 185 | 96.94 | 272.11 | 157.98 ± 28.12 | 17.80 | 0.860 | 0.000 |
| ICRU volume II (cm3) | 185 | 94.08 | 255.68 | 136.77 ± 22.40 | 16.38 | ||
| Bladder dose I (%) | 113 | 25.50 | 192.80 | 64.05 ± 25.21 | 39.36 | 0.998 | 0.132 |
| Bladder dose II (%) | 113 | 22.81 | 196.40 | 63.36 ± 25.93 | 40.92 | ||
| Rectal dose I (%) | 70 | 31.19 | 121.64 | 74.29 ± 19.37 | 26.07 | 0.992 | 0.000 |
| Rectal dose II (%) | 70 | 29.86 | 111.95 | 66.99 ± 16.59 | 24.76 |
I – existing pattern, II – proposed pattern, CV – coefficient of variation