Comparison between audio-only and audiovisual biofeedback for regulating patients' respiration during four-dimensional radiotherapy

Yu, Jesang; Choi, Ji Hoon; Ma, Sun Young; Jeung, Tae Sig; Lim, Sangwook

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자료유형: 학술저널

저자정보: Yu, Jesang (Department of Radiation Oncology, Kosin University Gospel Hospital, Kosin University College of Medicine) Choi, Ji Hoon (Department of Radiation Oncology, Kosin University Gospel Hospital, Kosin University College of Medicine) Ma, Sun Young (Department of Radiation Oncology, Kosin University Gospel Hospital, Kosin University College of Medicine) Jeung, Tae Sig (Department of Radiation Oncology, Kosin University Gospel Hospital, Kosin University College of Medicine) Lim, Sangwook (Department of Radiation Oncology, Kosin University Gospel Hospital, Kosin University College of Medicine)

저널정보: 대한방사선종양학회 Radiation oncology journal : ROJ Radiation oncology journal : ROJ 제33권 제3호

발행연도: 2015.1

수록면: 250 - 255 (6page)

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Purpose: To compare audio-only biofeedback to conventional audiovisual biofeedback for regulating patients' respiration during four-dimensional radiotherapy, limiting damage to healthy surrounding tissues caused by organ movement. Materials and Methods: Six healthy volunteers were assisted by audiovisual or audio-only biofeedback systems to regulate their respirations. Volunteers breathed through a mask developed for this study by following computer-generated guiding curves displayed on a screen, combined with instructional sounds. They then performed breathing following instructional sounds only. The guiding signals and the volunteers' respiratory signals were logged at 20 samples per second. Results: The standard deviations between the guiding and respiratory curves for the audiovisual and audio-only biofeedback systems were 21.55% and 23.19%, respectively; the average correlation coefficients were 0.9778 and 0.9756, respectively. The regularities between audiovisual and audio-only biofeedback for six volunteers' respirations were same statistically from the paired t-test. Conclusion: The difference between the audiovisual and audio-only biofeedback methods was not significant. Audio-only biofeedback has many advantages, as patients do not require a mask and can quickly adapt to this method in the clinic.

#Audio feedback #Respiratory regulation #Guided breath #Four dimensional radiotherapy

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