Influence of continuous table motion on patient breathing patterns

International Journal of Radiation Oncology, Biology, Physics
Jürgen WilbertMatthias Guckenberger

Abstract

To investigate the influence of continuous table motion on patient breathing patterns for compensation of moving targets by a robotic treatment couch. Fifteen volunteers were placed on a robotic treatment couch, and the couch was moved on different breathing-correlated and -uncorrelated trajectories. External abdominal breathing motion of the patients was measured using an infrared camera system. The influence of table motion on breathing range and pattern was analyzed. Continuous table motion was tolerated well by all test persons. Volunteers reacted differently to table motion. Four test persons showed no change of breathing range and pattern. Increased irregular breathing was observed in 4 patients; however, irregularity was not correlated with table motion. Only 4 test persons showed an increase in mean breathing amplitude of more than 2mm during motion of the couch. The mean cycle period decreased by more than 1 s for 2 test persons only. No abrupt changes in amplitude or cycle period could be observed. The observed small changes in breathing patterns support the application of motion compensation by a robotic treatment couch.

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Citations

Mar 1, 2012·Der Radiologe·J Boda-HeggemannF Lohr
Feb 11, 2014·Medical Physics·Stephanie LangStephan Klöck
Nov 22, 2011·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Anna SimeonovaFrank Lohr
Mar 5, 2015·Medical Physics·Ho-Chiao ChuangChung-Hsien Hsu
Jun 4, 2014·Journal of Applied Clinical Medical Physics·Ho-Chiao ChuangChung-Hsien Hsu
Dec 1, 2017·Radiation Oncology·Alexander JöhlStephanie Tanadini-Lang
Nov 14, 2018·Medical Physics·Shinichiro MoriKikuo Umegaki
Nov 25, 2014·Physics in Medicine and Biology·Ye ZhangA J Lomax
Dec 14, 2018·Physics in Medicine and Biology·Alexander JöhlStephanie Tanadini-Lang

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