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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 CTV taking
into account Internal Margins