Figure 2 | Scientific Reports

Figure 2

From: Target margin design for real-time lung tumor tracking stereotactic body radiation therapy using CyberKnife Xsight Lung Tracking System

Figure 2

The prediction error (a) and frequency of prediction error (b) of one fraction with the tumor position output of correlation model (solid line), the tumor position output of prediction model (dashed line), and error of prediction (dotted line) in three directions, respectively. As the tumor position range, period changes, the prediction error increases. The prediction error is higher at the end of inspiration in the period of respiratory.

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