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VMAT vs IMRT
Target:
VMAT showed a slightly improved target coverage
in terms of D2% (not significant) .
No sig diff in min dose, same HI
Conformity is superior in VMAT
OARs:
VMAT reduced irradiated high dose levels (V40
and V50) particularly for the bladder (not
significant?).
integral dose significantly lower
?.
Reduced treatment time and MU in VMAT.
Cozzi et al R&O 2008