Microsoft Word - RadBio_Programme_ParisSept2017_verAug31

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Relevant radiobiological factors
• Fractionation schedule: relation to EQD2Gy
38
Yarnold Radiother Oncol 2005
α/β = 3 EQD2Gy
39Gy/13fx 46.8Gy
50Gy/25fx 50Gy
42.9Gy/13fx 54Gy
α/β of 3.6 Gy
(95% CI 1.8-5.4 Gy)