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

Figure 7

Conventional and prediction-based RGRT systems, denoted here as RGRT and pRGRT, respectively. (a) In RGRT, gate on and off delays cause shifts of gating windows. Stated informally, nErr corresponds to the mean absolute height of the shaded area (mm). (b) In pRGRT, gate on and off commands are expected to be sent in advance to compensate for the latencies.

(a)

(b)