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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.