Computational and Mathematical Methods in Medicine / 2018 / Article / Fig 1

Research Article

Prediction-Based Compensation for Gate On/Off Latency during Respiratory-Gated Radiotherapy

Figure 1

Problem with conventional RGRT. (a) Given a respiratory signal and a gating threshold, gating windows should ideally be the time when the signal is lower than the threshold. (b) In conventional RGRT, gate on and off commands are sent just when the signal is lower and higher than the threshold, respectively. Hence, gate on and off delays cause deviations of gating windows.

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