523 / 1694
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