1072 / 1778
Reference points along vaginal axis:
PIBS* points
Westerveld et al. R&O 2013;107:99-105.
Westerveld, et al. R&O 2016;120:420-7.
ICRU/GEC ESTRO Report 89, 2016.
External Beam Radiotherapy
Brachytherapy
Bladder
Rectum
Vagina
Small Bowel
PIBS+2
PIBS
PIBS-2
2
cm
Body axis
2
cm
2
cm
Bladder
Vagina
Small Bowel
PIBS+2
PIBS
PIBS-2
Tandem axis
2
cm
2
cm
L 1
L 2
L3
*PIBS = Posterior Inferior Border of Symphisis