Clinical Study

Four-Dimensional Computed Tomography Based Respiratory-Gated Radiotherapy with Respiratory Guidance System: Analysis of Respiratory Signals and Dosimetric Comparison

Figure 4

Examples of the free breathing, the audio-guided breathing, and the complex system-guided breathing (the arrow indicates a deviation caused by a transient positional change).
306021.fig.004a
(a) Free breathing
306021.fig.004b
(b) Audio-guided breathing
306021.fig.004c
(c) Complex system-guided breathing