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Volumetric Modulated Arc Therapy
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Interplay between leaves and tumor motion is not significant for single-
fraction treatments when RapidArc is delivered with two different arcs
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Under phantom conditions, single-arc and single-fraction 2400 MU/min FFF
RapidArc lung stereotactic body radiation therapy is susceptible to interplay.
Two arcs and ≥2 fractions reduced the effect to a level that appeared
unlikely to be clinically significant
Ong et al. Int. J. Radiation Oncology Biol. Phys., Vol. 79, No. 1, pp. 305–311, 2011
Ong et al. Int J Radiation Oncol Biol Phys, Vol. 86, No. 4, pp. 743e748, 2013