1032 / 1609
The Cumulative Dose Volume Histogram (CDVH): implant
V150/V100
= 0.19
An implant with rigid needles shows a
very high homogeneity.
High doses per fraction can be chosen
DOSE NON-UNIFORMITY RATIO (DNR)
ratio of the high dose volume (1.5 times PD)
to the reference dose volume. V150/V100
The optimal dose distribution in terms of
dose uniformity can be achieved at the
minimum DNR value.