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http://dx.doi.org/10.14316/pmp.2014.25.4.264

Development and Utility Evaluation of Portable Respiration Training Device for Image-guided Stereotactic Body Radiation Therapy (SBRT)  

Hwang, Seon Bung (Korea Institute of Radiological and Medical Sciences)
Park, Mun Kyu (Korea Institute of Radiological and Medical Sciences)
Park, Seung Woo (Korea Institute of Radiological and Medical Sciences)
Cho, Yu Ra (Korea Institute of Radiological and Medical Sciences)
Lee, Dong Han (Korea Institute of Radiological and Medical Sciences)
Jung, Hai Jo (Korea Institute of Radiological and Medical Sciences)
Ji, Young Hoon (Korea Institute of Radiological and Medical Sciences)
Kwon, Soo-Il (Department of Medical Physics, Kyonggi University)
Publication Information
Progress in Medical Physics / v.25, no.4, 2014 , pp. 264-270 More about this Journal
Abstract
This study developed a portable respiratory training device to improve breathing stability, which is an important element in using the CyberKnife Synchrony respiratory tracking device, one of the typical Stereotactic Radiation Therapy (SRT) devices. It produced an interface for users to be able to select one of two displays, a graph type and a bar type, supported an auditory system that helps them expect next respiration by improving a sense of rhythm of their respiratory period, and provided comfortable respiratory inducement. By targeting 5 applicants and applying individual respiratory period detected through a self-developed program, it acquired signal data of 'guide respiration' that induces breathing through signal data gained from 'free respiration' and an auditory system, and evaluated the usability by comparing deviation average values of respiratory period and respiratory amplitude. It could be identified that respiratory period decreased $55.74{\pm}0.14%$ compared to free respiration, and respiratory amplitude decreased $28.12{\pm}0.10%$ compared to free respiration, which confirmed the consistency and stability of respiratory. SBRT, developed based on these results, using the portable respiratory training device, for liver cancer or lung cancer, is evaluated to be able to help reduce delayed treatment time due to respiratory instability and improve treatment accuracy, and if it could be applied to developing respiratory training applications targeting an android-based portable device in the future, even use convenience and economic efficiency are expected.
Keywords
Image guided robotic radiosurgery system; Respiratory training system; Synchrony;
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