Respiratory motion, as a dominant biological factor, imposes two primary challenges in radiotherapy: firstly, ensuring accurate spatial targeting of the tumor volume, and secondly, constraining radiation beams to minimize collateral damage to adjacent healthy tissues. Therefore, it is necessary to build a simulation platform for respiration tracking study before performing live surgery. In our previous work, a thoraco-abdominal respiratory motion phantom was proposed for simulating motion of chest, abdomen and internal tumor, which is helpful for respiratory motion tracking experiment. This paper validated that the phantom can reproduce the correlated respiratory movement of skin surface and tumor through experiments and analysis, which proves that the phantom can be used as an experimental components for the respiration tracking study of robotic radiosurgery.
Yu et al. (Sun,) studied this question.