The Effect of Breathing Biofeedback on Breathing Reproducibility and Patient's Dose in Respiration-gated Radiotherapy

135 This work was supported by the Industrial Strategic technology development program (10035527) funded by the Ministry of Knowledge Economy (MKE, Korea). Submitted September, 27, 2012, Accepted September, 2, 2013 Corresponding Author: Rena Lee, Department of Radiation Oncology, School of Medicine, Ewha Womans University, Mok 5-dong, Yangcheon-gu, Seoul 158-710, Korea Tel: 02)2650-2022, Fax: 02)2654-0363 E-mail: heraash@hanmail.net The Effect of Breathing Biofeedback on Breathing Reproducibility and Patient’s Dose in Respiration-gated Radiotherapy