Figure 1: Two states of the breathing cycle, maximum inhalation (left) and maximum exhalation (right). The beams move synchronously to the target, but the OAR remains stationary leading to a relative motion between beams and OAR.
Figure 1: Two states of the breathing cycle, maximum inhalation (left) and maximum exhalation (right). The beams move synchronously to the target, but the OAR remains stationary leading to a relative motion between beams and OAR.