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KMID : 1151820110050040179
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Journal of the Korean Society of Radiology
2011 Volume.5 No. 4 p.179 ~ p.187
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Statistical Study on Respiratory Signal Analysis according to Patient Position and Device in Radiation Therapy
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Seo Jeong-Min
Park Myung-Hwan
Shim Jae-Goo
Kim Chan-Hyeong
Park Cheol-Soo
Kim Kyoung-Keun
Cho Jae-Hwan
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Abstract
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This study statistically analyzed the difference of the stability of maintaining a respiratory period shown according to position and use of a device to search the tendency and usefulness of a device. The supine position showed better maintaining respiratory cycles than the prone position. The 85% of subjects who showed bad maintenance pattern of a respiratory cycle were significantly different pattern with using belly board. It could be said that there was a significant correlation between the maintenance of a respiratory cycle and relative index of respirational stability(p=0.044, kappa=0.607). The movement due to respiration was one of important considerations in the radiation therapy on chest, abdomen, and even pelvis. This study could contribute to the high quality radiation therapy by statistic analysis of respiratory signals and its application.
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KEYWORD
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4D radiation therapy, respiratory signal, stereotactic body radiation therapy
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