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Warsaw 2017
Potential downsides of DVH
• Loss of organ specific spatial information
– Single hot spot vs multiple hot spots?
– Assume all regions are of equal functional importance
• Does not consider fraction size variations
• Does not account for changes during treatment
• Image segmentation differences among clinicians, dose
calculations algorithms, patient populations, preferred beam
arrangements, whole course DVH’s for OAR risk etc.
• Comparison with Gamma Analysis?