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5)
ITV
FOR INTACT CARCINOMA OF THE CERVIX
Taylor 2008
BLADDER VOLUME
CHANGES AND TARGET
MOTION:
•
Target position can be related to
bladder filling
•
Motion of the cervix-uterus due
to bladder filling variations can
be very large (up to 65 mm) or
almost absent
•
Large individual differences
•
With drinking instructions still
large mean systematic set-up
errors (up to 30 mm)
•
Variable bladder filling CT scans
can predict target motion ranges