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Table 1 Patient characteristics, volume of CTVs and details on imaging for verification

From: Impact of robust treatment planning on single- and multi-field optimized plans for proton beam therapy of unilateral head and neck target volumes

Patient Primary tumor site Gender Clinical/pathological TNM-stage No. of cCTs CTV / cm3
Low-risk High-risk
1 Mucoepidermoid carcinoma of left parotid gland F pT1 N0 M0 6 159.7 (150.5–158.7) 17.1 (15.5–17.8)
2 Adenoidcystic carcinoma of right parotid gland M pT1 N0 M0 13 92.3 (87.7–96.3) 44.5 (42.3–46.4)
3 Small salivary glands of oral cavity M pT1 N2b M0 5 218.2 (199.9–211.2) 55.9 (50.3–53.3)
4 Lateral border of tongue F pT1 N2b M0 11 79.8 (79.0–83.9) 16.0 (16.2–17.1)
5 Right tonsil M pT2 N2b M0 11 150.2 (136.2–157.0) 43.2 (39.2–45.5)
6 Maxillary sinus M rcT2 N1 M0 5 134.9 (130.3–141.5) 28.8 (24.2–27.7)
7 Adenoidcystic carcinoma of left parotid gland M pT4a N0 M0 3 246.0 (238.4–242.6) 93.7 (87.9–91.7)
8 Recurrent adenoidcystic carcinoma of right submandibular gland M rpT2 N0 M0 6 78.7 (78.1–81.9) 22.5 (23.1–24.0)
  1. Abbreviations: F Female, M Male, cCT Control CTs, CTV Clinical target volume
  2. CTV values: pCT (range in cCTs)