Basic Clinical Radiobiology 2017

Prostate cancer case

• Given:

Fraction 1(Rectum) Tolerance (Rectum) - D max = 9,5 Gy - D max = 42 Gy - n = 1 - n = 5 - d = 9,5 Gy - d = 8,4 Gy

• Calculation: E/α = BED = D (1 +

)

 BED fraction 1  BED tolerance

= 9,5 (1 + = 42 (1 +

) = 39,58 Gy ) = 159,6 Gy