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Table 4 Number of exceedings of the considered planning criteria

From: Image guidance and positioning accuracy in clinical practice: influence of positioning errors and imaging dose on the real dose distribution for head and neck cancer treatment

Organ

Criteria

Original plan

Scenario 2

Scenario 3

Scenario 4

Scenario 5

Spinal chord

D2% < 42Gy

0

0

0

0

0

Parotid glands

Mean < 25Gy

4

5

4

12

8

V20Gy < 60%

0

0

0

3

1

Larynx

D2% < 63Gy

2

2

2

4

4

Mean < 44Gy

0

0

0

1

0

Vocal chords

D2% < 25Gy

2

2

2

8

4

Total

 

8

9

8

28

17

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Radiation Oncology

ISSN: 1748-717X

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