Table 2 Interobserver variability of the organs at risk described by 3 different endpoints
From: 3D Variation in delineation of head and neck organs at risk
OAR | ICC | CI (min-max) | 3D SD (mm) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Â | Â | Â | Global | Region | |||||
| Â | Â | Â | Â | cranial | caudal | medial | lateral | anterior | posterior |
Spinal cord | 0.32 | 0.64 (0.41-0.83) | 1.5 | 2.1 | 2.4 | 0.9 | - | - | - |
Parotid gland left | 0.65 | 0.69 (0.43-0.83) | 2.6 | 3.3 | 2.8 | 2.8 | 1.2 | 2.0 | 1.9 |
Parotid gland right | 0.86 | 0.71 (0.50-0.86) | 2.0 | 2.8 | 2.4 | 2.4 | 0.9 | 1.5 | 1.5 |
Submandibular gland left | 0.61 | 0.70 (0.46-0.85) | 1.8 | 2.9 | 0.7 | 1.7 | 1.7 | 1.6 | 1.4 |
Submandibular gland right | 0.60 | 0.71 (0.36-0.83) | 1.5 | 2.7 | 0.8 | 1.4 | 1.1 | 1.4 | 1.3 |
Thyroid cartilage | 0.83 | 0.66 (0.30-0.80) | 0.9 | 1.0 | 0.9 | 1.0 | 0.8 | - | - |
Glottic larynx | 0.27 | 0.37 (0.11-0.81) | 3.9 | 3.7 | 5.0 | 5.0 | 2.4 | - | 4.3 |