Physics Bucharest 2017

Static and Rotational IMRT - Principle

Independently on the approach used for VMAT plan optimization, the common principle is that:

→ because rotational therapy is not sensitive to small angular deviations, in field intensity modulation can be traded with the use of more beam angles as long as adjacent aperture could be geometrically connected

→ if dose rate variation is allowed, it has been shown that the same plan quality of fixed IMRT techniques can be reached

Tang G et al 2007 IJROBP ( 69)