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Table 2 Parameters for NTCP calculation

From: Intensity modulated radiotherapy in early stage Hodgkin lymphoma patients: Is it better than three dimensional conformal radiotherapy?

Organ

Size Factor (n)

Slope (m)

TD5/5

TD50/5

End Point

Lung

0.87

0.18

 

24.5

Pneumonities

Heart

0.35

0.10

40

 

Pericardities

Spinal cord

0.05

0.175

47

 

Myelities/necrosis

Thyroid

0.22

0.26

45

 

Thyroidities

Oesophagus

0.06

0.11

55

 

Clinical stricture/perforation

Breast

0.78

0.27

 

62.5

Fibrosis

  1. Abbreviations: TD5/5 = tolerance doses leading to 5% complication rates at 5 years, TD50/5 = tolerance doses leading to 50% complication rates at 5 years.
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Radiation Oncology

ISSN: 1748-717X

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