Lower GI 2017

ART: margins for the boosting phase

Maggiulli 2012

- Rectal motion as a surrogate of GTV/CTVboost - Assessment of rectal motion based on MVCT daily images (Maggiulli 2012, Raso 2015) - Trend for rectal volume reduction in 6/10 pts - Residual deformation error after rigid correction (mimicking daily correction) - Assessing a method to define «safe» margins for the boost based on local differences

between contours and probability coverage