2017_IGRT course book

Accuracy of imaging

Accuracy of IGRT to detect set-up errors

Cone-beam CT : Elekta Synergy S system

Meyer et IJROBP 2008

3D error always <0.5mm, “never observed a fusion error”

Orthogonal X-rays: Novalis Exactrak system

Ramakrishna Radiother Oncol 2010 Fusion errors in 3 / 102 patients: difference between DRR and X-ray