Figure 2From: Real-time prostate motion assessment: image-guidance and the temporal dependence of intra-fraction motion Histogram analysis showing the probability of displacement of beacon centroid as a function of motion amplitude. Displacement is measured along the lateral (LR), longitudinal (SI), and frontal (AP) directions for IMRTc (A), IMRTcc (B), IMATc (C), and IMATcc (D).Back to article page