ESTRO course on Image Guided Radiotherapy in Clinical Practice 2018

568 / 1601

Ultrasound
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
▪ De Meerleer et al