IMRT

This definition of EUD can also be derived from the Kutcher-Burnam DVH reduction scheme: the KB reduction algorithm reduces the DVH to a partial organ irradiation of an effective volume which receives the maximum dose of the original DVH (DVH  {D=D max , ν = ν EFF }). This is accomplished through the following calculation:

n 1   

  

D

∑

i

ν

=

i ν

EFF

D

i

max

where D i

, ν i and n have the same meaning as in the previous slides

n

EUD

D

= ν

⋅

max

EFF