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Table 2 Dose constraints for organs at risk and definition of protocol deviations.

From: Recommendations for implementing stereotactic radiotherapy in peripheral stage IA non-small cell lung cancer: report from the Quality Assurance Working Party of the randomised phase III ROSEL study

Organ

Volume (cc)

Deviation given as cumulative absolute dose (Gy)

  

3 fraction scheme

5 fraction scheme

  

None

Minor

None

Minor

Spinal Cord

Any point

18

> 18 to 22

25

> 25 to 28

Oesophagus

1

24

> 24 to 27

27

> 27 to 28.5

Ipsilateral Brachial Plexus

1

24

> 24 to 26

27

> 27 to 29

Heart

1

24

> 24 to 26

27

> 27 to 29

Trachea and main stem bronchus

1

30

> 30 to 32

32

> 32 to 35