Table 4 Planned Target Volume (PTV) Data.
From: Dosimetric impact of target definitions on normal structures in head and neck cancer
| RTOG | 3Dose | p | |
|---|---|---|---|
| Volumes (cc) | |||
| PTV-HD | 293.6 | 111.6 | <0.001 |
| PTV-ED | 704.8 | 545.2 | <0.001 |
| PTV Total | 998.4 | 837.3 | <0.001 |
| Doses | |||
| PTV-ED heterogeneity (%) | |||
| 110% | 36.549 | 14.870 | 0.002 |
| 115% | 15.086 | 2.716 | <0.001 |
| 93% Target Coverage (%) | |||
| PTV-HD | 99.823 | 99.994 | 0.049 |
| PTV-ED | 99.449 | 99.705 | 0.06 |
| Mean Target Doses (cGy) | |||
| PTV-HD | 7357.63 | 7240.90 | 0.01 |
| PTV-ED | 6099.57 | 5935.40 | 0.001 |
| PTV Total | 6468.31 | 6281.12 | <0.001 |
| Mean MUs | 1675 | 1556 | 0.01 |