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. Author manuscript; available in PMC: 2017 Dec 1.
Published in final edited form as: Int J Radiat Oncol Biol Phys. 2016 Sep 3;96(5):1087–1096. doi: 10.1016/j.ijrobp.2016.08.044

Fig. 4.

Fig. 4

Consistent error reduction (A, mean; B, standard deviation; and C, absolute error distribution) using respiratory motion perturbation (RMP) model predictions compared with noncorrected (NC) motions and 5-dimensional (5D) model predictions. (C) Distribution of absolute superoinferior (SI) errors of the RMP and 5D model predictions based on 800 trajectories (8000 points). The similarity between the RMP and 5D model predictions are shown, with improvement seen from the NC predictions between 4-dimensional computed tomography scan 1 and 2.