VMAT delivers less radiation to the skin

Intensity-modulated radiotherapy (IMRT) and volumetric-modulated arc therapy (VMAT) deliver highly conformal radiation dose distributions, directly targeting tumours while avoiding or minimizing dose to organs-at-risk. But skin is not necessarily spared, especially if hot spots are inadvertently created. In fact, severe skin reactions have been documented in head-and-neck cancer patients who received IMRT. Could VMAT techniques be potentially less harmful?