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. Author manuscript; available in PMC: 2019 Jun 27.
Published in final edited form as: Int J Radiat Oncol Biol Phys. 2018 Aug 24;103(1):268–275. doi: 10.1016/j.ijrobp.2018.08.021

FIG. 3.

FIG. 3.

Histogram of the distance of shifts triggered by the real-time tumor tracking system. Values are shown in the in-plane (AP/LR) and SI directions. The average radial shift was 5.9 mm, and the primary component of these shifts was in the SI direction.