3 years ago

Audiovisual biofeedback improves the correlation between internal/external surrogate motion and lung tumor motion.

Chiara Paganelli, Taeho Kim, Joanna Ludbrook, Danny Lee, Peter B Greer, Paul Keall
Breathing management can reduce breath-to-breath (intra-fraction) and day-by-day (inter-fraction) variability in breathing motion whilst utilizing the respiratory motion of internal and external surrogates for respiratory guidance. Audiovisual (AV) biofeedback, an interactive personalized breathing motion management system, has been developed to improve reproducibility of intra- and inter-fraction breathing motion. However, the assumption of the correlation of respiratory motion between surrogates and tumors is not always verified during medical imaging and radiation treatment. Therefore, the aim of the study was to test the hypothesis that the correlation of respiratory motion between surrogates and tumors is the same under free breathing without guidance (FB) and with AV biofeedback guidance for voluntary motion management.

Publisher URL: http://doi.org/10.1002/mp.12758

DOI: 10.1002/mp.12758

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