ASMR 2017

ICRU 62 (in addition to ICRU 50)

• Introduces the Conformity Index: CI= treated volume/ PTV

• Recommendations on anatomical and geometrical margins

• Internal Margins: IM are margins integrating physiological movements (breathing, bowel/ rectum/ bladder repletion, swallowing…)

• Internal Target Volume: ITV is defined as the volume taking into account Internal Margins