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Delineation of OARs
•
Sigmoid colon:
Should be clearly identified, and the whole
structure should be contoured, with specific focus on the
areas adjacent to the uterus. Length up to the junction with
the descending colon.
•
Rectum :
This implies the entire length from the ano-
rectum to the recto-sigmoid junction
•
Bladder:
The whole posterior, posterior-caudal (trigone),
and posterior-cranial bladder wall should be included till
bladder
neck