Table 1.
Patients’ characteristics
| Model | ||
|---|---|---|
| Number of patients | Patients | 83 |
| Tumour site | Nasopharyngeal | 16 patients |
| Oropharyngeal | 41 patients | |
| Hypopharyngeal and laryngeal | 26 patients | |
| PTV_69.96Gy volume | Mean ± SD [range], cm3 | 270.3 ± 15.0 [31.3, 641.9] |
| PTV_54.45Gy volume | Mean ± SD [range], cm3 | 421.4 ± 18.4 [187.0, 1048.9] |
| Parotids volume | Mean ± SD [range], cm3 | 27.7 ± 0.7 [11.8, 72.9] |
| Oral cavity volume | Mean ± SD [range], cm3 | 126.1 ± 2.6 [37.0, 162.4] |
| Larynx volume | Mean ± SD [range], cm3 | 50.2 ± 3.1 [15.8, 99.5] |
| Thyroid volume | Mean ± SD [range], cm3 | 19.1 ± 1.5 [5.3, 59.9] |
|
Spinal cord volume Spinal cord length |
Mean ± SD [range], cm3 Mean ± SD [range], cm |
33.3 ± 1.1 [12.3–61.4] 20.5 ± 0.6 [12.9–37.2] |
| Brain stem volume | Mean ± SD [range], cm3 | 21.6 ± 0.8 [9.4–37.0] |
SD error of the mean