Gynae BT_Lucknow_2018

Delineate Organ or Organ wall?

Organ

Organ wall

I. Situation in Brachytherapy

5 cm 3

5 cm 3’ 2 cm 3’

2 cm 3

DWH

DVH

V

DVH

Can we contour organs instead of organ walls?

DWH

small difference

large difference

5 cm 3 2 cm 3

Yes, if doses to 2 cm 3 are evaluated.

D

D’

D’

D

D

Olszewska AM. Radiother Oncol 2001;61:83-85