Table 1. OAR volume differences between contouring sessions.
| Mean volume (cc) |
Cc Difference | Percent Difference | |||||
|---|---|---|---|---|---|---|---|
| Structure | Mean | Std Dev | Range | Mean | Std Dev | Range | |
| Ipsilateral parotid | 33.4 | 1 | 1.1 | 0.2-5.1 | 2.1 | 1.6 | 0.2-5.4 |
| Contralateral parotid | 29.6 | 1.1 | 1 | 0.1-3.3 | 4.9 | 5.2 | 0.1-12.7 |
| Ipsilateral submandibular | 10.7 | 0.5 | 0.4 | 0.1-1.2 | 5.3 | 4.4 | 0.7-15.9 |
| Contralateral submandibular | 9.2 | 0.5 | 0.4 | 0.1-1.5 | 5.5 | 3.9 | 0.6-13.5 |
| Pharyngeal constrictors | 19.4 | 1.8 | 1.3 | 0.1-4.7 | 4.9 | 4.8 | 0.3-21.8 |
| Larynx | 17.6 | 0.8 | 0.8 | 0.2-3.3 | 4.7 | 4.3 | 0.7-12.9 |
| Glottis | 5.7 | 1.5 | 1.7 | 0.1-4 | 16.3 | 12.7 | 1.1-45.2 |
| Mean | 1 | 1 | 6.2 | 5.3 | |||
| Std Dev | 0.5 | 0.5 | 4.6 | 3.4 | |||