2017_IGRT course book

Ultrasound

▪ De Meerleer et al

No surrogate required (soft tissue visualization)

Marker vs US:

– Remaining random

error same magnitude as with initial set-up

– CT-contour  US- structure – Important inter-user variability

▪ Van den Heuvel et al , Med.Phys. 2003; 30 ▪ Langen et al , IJROBP 2003; 57