Basic Clinical Radiobiology 2017

Prostate cancer case

Question 3: Which arm will cause theoretically the most late toxicity?

• Calculation:

E/α = BED = D (1 +

)

- 74 Gy – arm: - 60 Gy – arm: - 57 Gy – arm:

= 74 (1 + ) = 123,33 Gy = 60 (1 + ) = 120 Gy = 57 (1 + ) = 114 Gy