814-815 / 2063
EQD
2
tumor
=
24 4
+
10
2
+
10
⎛
⎝⎜
⎞
⎠⎟ =
28
Considering tumor effect, using
α/β
= 10
Gy,
Therefore, giving the rest of the treatment as
would give
equal tumor effect
as 35 × 2 Gy.
70 – 28 =
42
Gy
in 2 Gy fractions