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Expected interfraction variations for cervix BT
Target
should remain fixed
Si
relative to applicator
2013, R&O 107
gmoid
Rectum:
may slightly change in
location and fill with gas
Rectum
GTV
Bladder:
use of bladder filling
protocols
Bladder
Sigmoid:
might change
its location
2cc
1cc
0.1cc
Hellebust et al. R&O 60, 2002
Lang et al. R&O 107, 2013
ICRU 38 Ref. Points
Kirisits et al. R&O 2006
Nesvacil et al. R&O 107, 2013
Tanderup et al. R&O 107, 2013 (and references therein)