Estimate Of The Accuracy Of The Home-made Respiratory Monitoring System Based On The MEMS Acceleration Sensor | 18799
Journal of Biosensors & Bioelectronics
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Purpose: The purpose of this study is to develop and estimate the accuracy of the home-made respiratory monitoring system
based on MEMS (micro-electro-mechanical-system) acceleration sensor for the respiratory gated radiotherapy.
Methods and Materials: We developed respiratory monitoring system which was composed of 3 parts: sensing, looking, and
listening. Sensing part is to detect the patient?s respiratory motion by using the MEMS acceleration sensor, looking part is to
display respiratory signal on the Tablet PC and listening part is to warn the excessive amplitude of breathing signal by ringing
We evaluated accuracy for the signal from respiratory monitoring system by comparing with real motion. The MEMS
acceleration sensor was placed on the 3 dimension moving phantom. It detected the motion and sent the electric signal to the
Results: The uncertainty of the signal from the 3D moving phantom was measured about 0.01% in an amplitude and period for
each interval. The signal from the respiratory monitoring system was well matched with the real motion.
Conclusion: In term of simplicity and convenience, we found the possibility of the respiratory monitoring system for the
respiratory gated radiotherapy. So we expect more detail of study for more realistic situation and it can be established in near
Jiwon Sung graduated from Dongguk University with a degree in Physics. After graduating, she is majoring in Medical Physic in Korea University (pursuing Master?s
degree). She is a researcher in Kyung Hee University Hospital at Gangdong. She wrote two papers which were published at Progress in Medical Physics and
received oral award in AOCMP & SEACOMP 2013.
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