NDLI: Evaluation of the MEMS based portable respiratory training system with a tactile sensor for respiratory-gated radiotherapy

Content Provider	Springer Nature Link
Author	Chung, Mijoo Yoon, Myonggeun Chung, Weon Kuu Moon, Sun Young Kim, Dong Wook
Copyright Year	2017
Abstract	In respiratory-gated radiotherapy, it is important to maintain the regular respiratory cycles of patients. If patients undergo respiration training, their regular breathing pattern is affected. Therefore, we developed a respiratory training system based on a micro electromechanical system (MEMS) and evaluated the feasibility of the MEMS in radiotherapy. By comparing the measured signal before and after radiation exposure, we confirmed the effects of radiation. By evaluating the period of the electric signal emitted by a tactile sensor and its constancy, the performance of the tactile sensor was confirmed. Moreover, by comparing the delay between the motion of the MEMS and the electric signal from the tactile sensor, we confirmed the reaction time of the tactile sensor. The results showed that a baseline shift occurred for an accumulated dose of 400 Gy in the sensor, and both the amplitude and period changed. The period of the signal released by the tactile sensor was 5.39 and its standard deviation was 0.06. Considering the errors from the motion phantom, a standard deviation of 0.06 was desirable. The delay time was within 0.5 s and not distinguishable by a patient. We confirmed the performance of the MEMS and concluded that MEMS could be applied to patients for respiratory-gated radiotherapy.
Starting Page	452
Ending Page	458
Page Count	7
File Format	PDF
ISSN	03744884
Journal	Journal of the Korean Physical Society
Volume Number	71
Issue Number	8
e-ISSN	19768524
Language	English
Publisher	The Korean Physical Society
Publisher Date	2017-10-11
Publisher Place	Seoul
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Micro electromechanical system Theoretical, Mathematical and Computational Physics Reaction time Tactile sensor Respiratory-gated radiotherapy Radiation hardness Physics Particle and Nuclear Physics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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