Varian Medical Systems has added motion management capabilities including gated RapidArc to its Trilogy platform for treating cancer with targeted radiotherapy.

A set of new tools now allows clinicians to monitor and adjust for tumor motion during treatment, and to utilize respiratory gating during a RapidArc treatment, said the company. The new Trilogy system also incorporates an open interface that can be used with positioning devices like the Calypso Medical Technologies' system, Varian said.