Basic Clinical Radiobiology 2017

Relevant radiobiological factors

Yarnold Radiother Oncol 2005

• Fractionation schedule: relation to EQD 2Gy

α/β = 3

EQD 2Gy 46.8Gy

39Gy/13fx 50Gy/25fx

50Gy 42.9Gy/13fx 54Gy

α/β of 3.6 Gy (95% CI 1.8-5.4 Gy)

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