Folie 1

Discussion: Clinical Relevance



Should we measure intra-fraction motion?



Yes, at planning in order to individualize the safety margin



And if necessary to reduce the motion amplitude with compression



Should we correct for intra-fraction motion?



The penumbra is more sharp in abdomen than in lung



Amplitude has an effect on the margin



Still systematic uncertainties dominate the required margin



Should we correct for inter-fraction motion?



YES!



Should we adapt the treatment plan?



First solve issues mentioned above