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Table 5 Failure pattern and dosimetric characteristics in patients with nodal recurrence

From: Selective use of postoperative neck radiotherapy in oral cavity and oropharynx cancer: a prospective clinical study

Patient nº Localization nodal failure XRT volume Failure (month) Volume (cc) Minimum dose (cGy) Maximum dose (cGy) Mean dose (cGy)
1 II-III ipsilateral Nodal CTV2 6 9.1 6498.2 6980.0 6602.9
2 III-IV ipsilateral Nodal CTV2 12 3.45 6489.9 6995.9 6629.5
3 II ipsilateral Nodal CTV1 14 2.8 4399.0 6551.2 5554.1
   (Nodal CTV2 marginal)      
4 III ipsilateral Nodal CTV0 9 9.35 175.1 3113.2 1191.4
5 III ipsilateral Nodal CTV1 8 1.83 5685.5 7005.2 6535.1
II ipsilateral Nodal CTV2 8 2.51 6652.8 6741.6 6701.8
6 II ipsilateral Nodal CTV2 7 3.5 7009.1 7255.1 7149.8
7 V ipsilateral Nodal CTV0 19 3.1 195.0 5050.1 2789.8
8 Ib-II ipsilateral Nodal CTV2 8 3.35 6561.1 7171.2 6805.5
9 II-III ipsilateral Nodal CTV0 17 2.9 589.9 5101.0 3091.0
   (nodal CTV1 marginal)      
10 Ib ipsilateral Nodal CTV1 11 2.8 6491.0 7001.0 6682.2
II ipsilateral Nodal CTV2 11 1.9 4901.0 6281.2 5402.3
11 II ipsilateral Nodal CTV2 7 9.8 6595.3 6798.4 6639.0
12 Ib ipsilateral Nodal CTV2 7 2.9 6598.2 6792.0 6689.3
13 II ipsilateral Nodal CTV2 8 2.1 6601.4 6850.1 6602.2
14 Ib ipsilateral Nodal CTV2 11 2.8 6599.0 6899.4 6598.0
15 Ib ipsilateral Nodal CTV2 10 10.2 6278.7 7195.5 6658.9
  1. Abbreviations: CTV0 = low-risk clinical target volume; CTV1 = moderate-risk clinical target volume;
  2. CTV2 = high-risk clinical target volume.