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Table 2 Mean DSI and HD indexes for the final volumes

From: Quality assurance of radiotherapy in the ongoing EORTC 1420 “Best of” trial for early stage oropharyngeal, supraglottic and hypopharyngeal carcinoma: results of the benchmark case procedure

Final volume DSI (SD) HD (SD)
Planning organ-at-risk volume of the brainstem 0.79 (0.12) 8.05 (2.59)
Cervical esophagus 0.44 (0.22) 18.20 (9.64)
Contralateral parotid 0.81 (0.05) 12.94 (5.27)
Cricoid pharyngeal inlet 0.33 (0.16) 12.93 (6.12)
Contralateral sub-mandibular gland 0.83 (0.06) 7.02 (4.28)
Extended oral cavity-PTV 0.86 (0.07) 12.14 (6.13)
Glottis 0.56 (0.20) 8.81 (4.28)
Ipsilateral parotid 0.81 (0.04) 11.71 (4.24)
Mandible 0.92 (0.02) 7.52 (7.47)
Pharyngeal constrictor muscles 0.62 (0.08) 22.86 (17.28)
Prophylactic PTV 0.79 (0.06) 16.05 (6.03)
Therapeutic PTV 0.74 (0.10) 9.35 (3.47)
Planning organ-at-risk volume of the spinal cord 0.77 (0.13) 12.52 (8.79)
Supraglottic larynx 0.66 (0.16) 11.58 (6.05)
Thyroid gland 0.86 (0.02) 4.36 (1.20)