dose-volume

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PAUL SCHERRER INSTITUTProblems and pitfalls1. DVHs are insensitive to small ‘hot’ and ‘cold’ spots2. The shape of a DVH alone can be misleading3. DVHs can only be calculated for defined VOIsSGSMP/SRO Physics Lectures 2007PD Dr Tony LomaxTreatment plan evaluation
PAUL SCHERRER INSTITUTProblems and pitfalls1. DVHs are insensitive to small ‘hot’ and ‘cold’ spotsPlan 1 Plan 2ConsiderPlan 1Plan 2comparativeDVHs from twocompetingplansTarget <strong>volume</strong>Brain stemPosterior fossaFrom DVHs, plan2 appears to bethe best….SGSMP/SRO Physics Lectures 2007Posterior fossa…apart fromapparentlyBut this increaseinignificantcorresponds to aincrease in high105% hot spot in<strong>dose</strong> to posteriorposterior fossafossaPD Dr Tony LomaxTreatment plan evaluation
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Page 4 and 5: PAUL SCHERRER INSTITUTDisplaying do
Page 6 and 7: PAUL SCHERRER INSTITUTMethods of di
Page 8 and 9: PAUL SCHERRER INSTITUTColour scales
Page 11 and 12: PAUL SCHERRER INSTITUTInteractivity
Page 13 and 14: PAUL SCHERRER INSTITUTDose volume h
Page 15 and 16: PAUL SCHERRER INSTITUTCalculation a
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Page 23 and 24: PAUL SCHERRER INSTITUTIntermediate
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Page 27 and 28: PAUL SCHERRER INSTITUTPlanning crit
Page 41 and 42: PAUL SCHERRER INSTITUTOptimisation
Page 47 and 48: PAUL SCHERRER INSTITUTDose based sc
Page 49 and 50: PAUL SCHERRER INSTITUTBiological sc
Page 55 and 56: PAUL SCHERRER INSTITUTPhysical asse
Page 61: PAUL SCHERRER INSTITUTSummary.Plan

dose-volume

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