SBRT2015

SBRT%Affects%the%Whole%Treatment%Chain% • CT#imaging# " Slice%spacing%(for%DRR%genera;on),%contrast,%Field%of%View%(nonBcoplanar,%…)% " 4DBCT:%respira;on%signal,%phaseBbased/amplitudeBbased,%…% " Immobiliza;on%techniques% • Secondary#image#sets# " Inves;gate%and%discuss%MRI%Sequences%to%be%used% " Assess%registra;on%methods%and%registra;on%accuracy% • Margins# " Calculate%/%es;mate%required%margins%and%discuss%these%with%the%team%(radia;on% oncologist,%Physicist,%RTT).%Discuss%the%incen;ve%of%the%treatment.% " Use%your%own%data!!% " For%differen;al%mo;on%between%tumor%and%organ%at%risk%consider%margins%around% organs%at%risk% • Treatment#planning# " Dose%prescrip;on,%normaliza;on,%repor;ng%(prescrip;on%isoBdose%50%%B%80%;% normaliza;on)% " Constraints%for%organs%at%risk%for%hypofrac;onated%schedules% " Plan%acceptance:%eg%hotspots%far%away%from%target,%%skin%dose%

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SBRT 2015 - D. Verellen