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. Author manuscript; available in PMC: 2017 Mar 18.
Published in final edited form as: Int J Radiat Oncol Biol Phys. 2012 Sep 11;84(5):e655–e661. doi: 10.1016/j.ijrobp.2012.07.2367

Fig. 2.

Fig. 2

Trajectory types determined by KIM include (A) stable target position, (B) continuous drift, (C) transient excursion, (D) persistent excursion, (E) high-frequency excursions, and (F) erratic behavior. Each trajectory is divided into three sections, pretreatment and first and second arcs. The 3D (black), SI (blue), AP (green), and LR (red) trajectories are displayed. The first and second arcs are in gray to show that the MV treatment beam is switched on. Gaps between the arcs represent the time for setup between arcs.