843 / 1345
Clinical
examination
MR
CT
GTV
good
excellent
V poor
Outline of cervix
good
excellent
good
Uterine corpus invasion
poor
excellent
poor
Parametrium (normal &
abnormal)
(good)
good
poor
Vaginal disease
excellent
Excellent for para-
vaginal disease
poor
Comparison of Various Parameters required for
Target Definition / Contouring
Various targets at brachytherapy on CT:
•
GTV at Brachy: No visualization of residual tumor on CT
•
HR - CTV: on CT feasible with Clinical & CT findings
•
IR - CTV: safety margins to HR-CTV