DOI QR코드

DOI QR Code

A Study on the Detection Characteristics of the Magneto-Plethysmography According to Fluid Properties

유체의 성질에 따른 자계용적맥파의 검출 특성에 관한 연구

  • Kim, Sang-Min (College of Science & Technology, Dept. of Biomedical Engineering, Konkuk University) ;
  • Lee, Kang-Hwi (College of Science & Technology, Dept. of Biomedical Engineering, Konkuk University) ;
  • Lee, Seong-Su (College of Science & Technology, Dept. of Biomedical Engineering, Konkuk University) ;
  • Lee, Hyeok-Jae (College of Science & Technology, Dept. of Biomedical Engineering, Konkuk University) ;
  • Lee, Byoung-Hun (College of Science & Technology, Dept. of Biomedical Engineering, Konkuk University) ;
  • Kim, Kyeoung-Seop (College of Science & Technology, Dept. of Biomedical Engineering, Konkuk University) ;
  • Lee, Jeong-Whan (College of Science & Technology, Dept. of Biomedical Engineering, Konkuk University)
  • Received : 2018.06.04
  • Accepted : 2018.06.25
  • Published : 2018.07.01

Abstract

Photo-plethysmography (PPG), which measures changes in the peripheral blood flow of a human body using difference in absorption rate of light, is a measurement method that is studied and used in clinical and various applications due to its simple circuit configuration and measurement convenience. Magneto-plethysmography (MPG), which is newly developed by our team, is a method of measuring changes in the conductivity of biological tissues by using a eddy current induced by a time-varying magnetic field, and is not subject to optical interference. In this study, we investigated the detection characteristics of MPG according to the change of the conductivity of the object and fluid to be measured by simultaneously measuring PPG and MPG. In order to control the speed of fluid known in advance, a blood flow simulator was implemented and used. The fluid used in the experiment was general mineral water and physiological saline (0.9% NaCl) solution. Experimental results show that the amplitude change of the measured PPG was 0.3% in normal water and saline solution, and that of MPG was 77.3%. Therefore, it is considered that the magneto-plethysmography (MPG) has a strong correlation with the conductivity of the fluid.

Keywords

References

  1. John Allen, "Photoplethysmography and its application in clinical physiological measurement", Physiological Measurement, 2007.2.
  2. C. P. Chua and C. Heneghan, "Continuous Blood Pressure Monitoring using ECG and Finger Photo- plethysmogram", IEEE, Aug 30-Sept 3, 2006.
  3. I. Korhonen and A. Yli-Hankala, "Photoplethysmography and nociception", Volume 53, Issue 8, 975-985, 2009. https://doi.org/10.1111/j.1399-6576.2009.02026.x
  4. Mohamed Elgendi, "On the Analysis of Fingertip Photoplethysmogram Signals", Current Cardiology Reviews, vol. 8, no. 1, 14-25, 2012. https://doi.org/10.2174/157340312801215782
  5. Varpula, T. "Magnetic-Susceptibility Plethysmography", Il Nuovo Cimento D, 2, (2), 624-641, 1983. https://doi.org/10.1007/BF02455960
  6. Y.-J. Lee 외, "Magneto-Plethysmographic Sensor for Peripheral Blood Flow Velocity", IEEE Sensors Journal, vol. 14, no. 5, pp 1341-1342, 5 2014. https://doi.org/10.1109/JSEN.2014.2304752
  7. Richard E. Klabunde, cardiovascular physiology concept, Lippincott Williams and Wilkins.
  8. R. E. Klabunde, Cardiovascular physiology concepts, 2nd ed. Philadelphia, PA: Lippincott Williams & Wilkins/Wolters Kluwer, 2012.
  9. Kyeng-Nam Kim, Kang-Hwi Lee, Young-Jae Lee, Seung-Jin Kang, Jeong-Whan Lee "Blood Flow simulator development using Arterial Blood Pressure waveform", 2015 biomedical system conference, 2015.2, pp. 32-34, 3 pages.
  10. James A. L. Pittman, John Sum Ping, Jonathan B. Mark, Arterial and Central Venous Pressure Monitoring, Int Anesthesiol Clin. Winter; 42(1), pp. 13-30, 2004. https://doi.org/10.1097/00004311-200404210-00004