Research Article
Quantification of an External Motion Surrogate for Quality Assurance in Lung Cancer Radiation Therapy
Figure 3
Results of the mean position of the breath hold phases Δ (red), breathing periods (blue), and baseline drifts D (green) over the number of fractions. Each point represents a measurement for one patient in one fraction. The colored area represents the 95% confidence interval of the linear regression (black line).
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