1114 / 1245
3.
IMRT/VMAT calculation validation
o
Accurate dosimetric commissioning of an IMRT system remains a
challenge
o
Results of IMRT credentialling by IROC shows that only 82% of
institutions passed the credentialling end to end test (5%-7mm)
o
Most of the failures were due to the basic beam modeling
inaccuracies.