Figure 4.

Comparison of prostate DVHs for the static, average- and segment-based convolution plans, which are delivered in one or in five fractions. Each single-fraction plan incorporates the tracking data from one of the five fractions exhibiting the largest SD, as shown in [(a)–(e)], from the patient who was also observed to exhibit the largest SD over the course of treatment. The five-fraction plan incorporates the tracking data from all five fractions. The average of the five motion traces in (a)–(e) is shown in (f).