Table 3 Comparison of pre-post contouring accuracy results (through dice similarity coefficient)
Structure | N | Dice similarity coefficient: pre-test median | Dice similarity coefficient: post-test median | P-value |
|---|---|---|---|---|
Clivus | 15 | 0.00 | 0.46 | 0.020 |
Hyoid bone | 15 | 0.71 | 0.76 | 0.241 |
Optic chiasm | 15 | 0.00 | 0.00 | 0.219 |
Sphenoid sinus | 15 | 0.84 | 0.83 | 0.492 |
Thyroid gland | 15 | 0.61 | 0.65 | 0.879 |
Left cochlea | 15 | 0.00 | 0.00 | 0.578 |
Left jugular foramen | 15 | 0.22 | 0.62 | 0.577 |
Left lateral pterygoid muscle | 15 | 0.00 | 0.03 | 0.160 |
Left lens | 15 | 0.67 | 0.77 | 0.026 |
Left level v lymph nodes | 15 | 0.43 | 0.52 | 0.519 |
Left piriform sinus | 15 | 0.13 | 0.57 | 0.005 |
Left submandibular gland | 15 | 0.80 | 0.81 | 0.303 |
Right arytenoid cartilage | 15 | 0.00 | 0.00 | 0.547 |
Right common carotid artery | 15 | 0.05 | 0.29 | 0.865 |
Right level iIa lymph nodes | 15 | 0.28 | 0.13 | 0.376 |
Right masseter muscle | 15 | 0.81 | 0.83 | 0.720 |
Right optic nerve | 15 | 0.58 | 0.60 | 0.330 |
Right parotid gland | 15 | 0.66 | 0.69 | 0.985 |
Right tonsillar fossa | 15 | 0.07 | 0.04 | 0.588 |
Right vocal cord | 15 | 0.00 | 0.10 | 0.250 |