Fig 1.
Setup for Recording the Breathing Signals of a Patient Using the Varian Real-time Position Management (RPM; Varian Medical Systems, Palo Alto, CA) System with a Visible Guiding System.
Table 1.
Characteristics of the Patients Included in the Study.
Patient 21 Was Treated in the RUL and LUL.
Fig 2.
Box and Whisker Plots of the Displacement of the External Block Marker as a Function of Phase for Patient #11 with (a) Free Respiration and (b) Guided Respiration. The box represents the interquartile range of the results: the bottom line indicates the 25th percentile, the top line indicates the 75th percentile, the solid line inside the box represents the median, and the asterisk in the box represents the mean. The whiskers on the box represent a confidence interval of approximately 95%, and the points beyond the whiskers are extreme values outside the 95% confidence interval of the median.
Fig 3.
Box and Whisker Plots of the Displacement of the External Block Marker as a Function of Phase for Patient #18 with (a) Free Respiration and (b) Guided Respiration. The box represents the interquartile range of the results: the bottom line indicates the 25th percentile, the top line indicates the 75th percentile, the solid line inside the box represents the median, and the asterisk in the box represents the mean. The whiskers on the box represent a confidence interval of approximately 95%, and the points beyond the whiskers are extreme values outside the 95% confidence interval of the median.
Fig 4.
Amplitude of the Marker-block Position of Patient #13 as a Function of Time: (a) Free Respiration and (b) Guided Respiration.
Table 2.
Results of the Paired t-test for Differences between Free Respiration and Guided Respiration with the 3-s Cycle Using the Visual Guidance System (N = 40 with Respiration Signals).
Table 3.
Results of the Standard Deviation of the Respiration Signals for the 23 Patients Using the Visual Guidance System.