Cardiac-induced localized thoracic motion detected by a fiber optic sensing scheme

Abstract

The cardiovascular health of the human population is a major concern for medical clinicians, with cardiovascular diseases responsible for 48% of all deaths worldwide, according to the World Health Organization. The development of new diagnostic tools that are practicable and economical to scrutinize the cardiovascular health of humans is a major driver for clinicians. We offer a new technique to obtain seismocardiographic signals up to 54 Hz covering both ballistocardiography (below 20 Hz) and audible heart sounds (20 Hz upward), using a system based on curvature sensors formed from fiber optic long period gratings. This system can visualize the real-time three-dimensional (3-D) mechanical motion of the heart by using the data from the sensing array in conjunction with a bespoke 3-D shape reconstruction algorithm. Visualization is demonstrated by adhering three to four sensors on the outside of the thorax and in close proximity to the apex of the heart; the sensing scheme revealed a complex motion of the heart wall next to the apex region of the heart. The detection scheme is low-cost, portable, easily operated and has the potential for ambulatory applications.

Publication DOI: https://doi.org/10.1117/1.JBO.19.11.117006
Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Additional Information: Thomas Allsop ; Glynn Lloyd ; Ranjeet S. Bhamber ; Ljupco Hadzievski ; Michael Halliday, et al., "Cardiac-induced localized thoracic motion detected by a fiber optic sensing scheme", J. Biomed. Opt. 19(11), 117006 (Nov 13, 2014). Copyright 2014 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. DOI: http://dx.doi.org/10.1117/1.JBO.19.11.117006 Funding: Grant No. EP/J010413 UK Engineering and Physical Sciences Research Council
Uncontrolled Keywords: cardio measurement,curvature sensing,long period gratings,Biomedical Engineering,Biomaterials,Electronic, Optical and Magnetic Materials,Atomic and Molecular Physics, and Optics,Medicine(all)
Publication ISSN: 1560-2281
Last Modified: 26 Jan 2024 08:05
Date Deposited: 04 Jun 2015 10:55
Full Text Link:
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
https://www.spi ... 7006.full?SSO=1 (Publisher URL)
PURE Output Type: Article
Published Date: 2014-11-13
Authors: Allsop, Thomas D.P. (ORCID Profile 0000-0001-8905-9014)
Lloyd, Glynn
Bhamber, Ranjeet S.
Hadžievski, Ljupčo
Halliday, Michael
Webb, David J. (ORCID Profile 0000-0002-5495-1296)
Bennion, Ian

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