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Journal of the Optical Society of Korea

Journal of the Optical Society of Korea


  • Vol. 14, Iss. 3 — Sep. 1, 2010
  • pp: 235–239

Development of Respiration Sensors Using Plastic Optical Fiber for Respiratory Monitoring Inside MRI System

Wook-Jae Yoo, Kyoung-Won Jang, Jeong-Ki Seo, Ji-Yeon Heo, Jin-Soo Moon, Jang-Yeon Park, and Bong-Soo Lee  »View Author Affiliations

Journal of the Optical Society of Korea, Vol. 14, Issue 3, pp. 235-239 (2010)

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In this study, we have fabricated two types of non-invasive fiber-optic respiration sensors that can measure respiratory signals during magnetic resonance (MR) image acquisition. One is a nasal-cavity attached sensor that can measure the temperature variation of air-flow using a thermochromic pigment. The other is an abdomen attached sensor that can measure the abdominal circumference change using a sensing part composed of polymethyl-methacrylate (PMMA) tubes, a mirror and a spring. We have measured modulated light guided to detectors in the MRI control room via optical fibers due to the respiratory movements of the patient in the MR room, and the respiratory signals of the fiber-optic respiration sensors are compared with those of the BIOPAC<TEX>$^{(R)}$</TEX> system. We have verified that respiratory signals can be obtained without deteriorating the MR image. It is anticipated that the proposed fiber-optic respiration sensors would be highly suitable for respiratory monitoring during surgical procedures performed inside an MRI system.

© 2010 Optical Society of Korea

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.4640) Instrumentation, measurement, and metrology : Optical instruments
(160.6840) Materials : Thermo-optical materials

Original Manuscript: May 6, 2010
Revised Manuscript: July 8, 2010
Manuscript Accepted: July 21, 2010
Published: September 25, 2010

Wook-Jae Yoo, Kyoung-Won Jang, Jeong-Ki Seo, Ji-Yeon Heo, Jin-Soo Moon, Jang-Yeon Park, and Bong-Soo Lee, "Development of Respiration Sensors Using Plastic Optical Fiber for Respiratory Monitoring Inside MRI System," J. Opt. Soc. Korea 14, 235-239 (2010)

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