1675 / 1840
Quality Parameters and Indices
The Dose Volume Histogram: The Cumulative DVH
It is:
1 – {the cumulative frequency distribution of dose in a VOI (Target or OAR)}
For each bin e.g. [100, 103]%
= [11,50 - 11,85] Gy
it is the volume of the VOI
(Target or OAR) in mm³ or
cm³ or % of the VOI
Target
Dose Interval divided in “bins”
in cGy or Gy or %
receiving a dose value
at least as high as the low
bin limit, here 100%
The curve indicates how much of the
volume is covered by the “required”
dose value