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dc.contributor.authorNedoma, Jan
dc.contributor.authorKepák, Stanislav
dc.contributor.authorFajkus, Marcel
dc.contributor.authorČubík, Jakub
dc.contributor.authorŠiška, Petr
dc.contributor.authorMartinek, Radek
dc.contributor.authorKrupa, Petr
dc.date.accessioned2019-01-04T12:52:13Z
dc.date.available2019-01-04T12:52:13Z
dc.date.issued2018
dc.identifier.citationSensors. 2018, vol. 18, issue 11, art. no. 3713.cs
dc.identifier.issn1424-8220
dc.identifier.urihttp://hdl.handle.net/10084/133481
dc.description.abstractThe publication presents a comparative study of two fibre-optic sensors in the application of heart rate (HR) and respiratory rate (RR) monitoring of the human body. After consultation with clinical practitioners, two types of non-invasive measuring and analysis systems based on fibre Bragg grating (FBG) and fibre-optic interferometer (FOI) have been designed and assembled. These systems use probes (both patent pending) that have been encapsulated in the bio-compatible polydimethylsiloxane (PMDS). The main advantage of PDMS is that it is electrically non-conductive and, as well as optical fibres, has low permeability. The initial verification measurement of the system designed was performed on four subjects in a harsh magnetic resonance (MR) environment under the supervision of a senior radiology assistant. A follow-up comparative study was conducted, upon a consent of twenty volunteers, in a laboratory environment with a minimum motion load and discussed with a head doctor of the Radiodiagnostic Institute. The goal of the laboratory study was to perform measurements that would simulate as closely as possible the environment of harsh MR or the environment of long-term health care facilities, hospitals and clinics. Conventional HR and RR measurement systems based on ECG measurements and changes in the thoracic circumference were used as references. The data acquired was compared by the objective Bland-Altman (B-A) method and discussed with practitioners. The results obtained confirmed the functionality of the designed probes, both in the case of RR and HR measurements (for both types of B-A, more than 95% of the values lie within the +/- 1.96 SD range), while demonstrating higher accuracy of the interferometric probe (in case of the RR determination, 95.66% for the FOI probe and 95.53% for the FBG probe, in case of the HR determination, 96.22% for the FOI probe and 95.23% for the FBG probe).cs
dc.format.extent38022347 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofseriesSensorscs
dc.relation.urihttp://doi.org/10.3390/s18113713cs
dc.rights© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectinterferometercs
dc.subjectBragg gratingcs
dc.subjectheart rate (HR)cs
dc.subjectrespiratory rate (RR)cs
dc.subjectphonocardiography (PCG)cs
dc.subjectballistocardiography (BCG)cs
dc.subjectelectrocardiography (ECG)cs
dc.subjectpolydimethylsiloxane (PDMS)cs
dc.subjectvital signscs
dc.subjectnon-invasive measurementscs
dc.subjectpatient monitoringcs
dc.subjectbiomedical engineeringcs
dc.subjectmagnetic resonance imaging (MRI)cs
dc.titleMagnetic resonance imaging compatible non-invasive fibre-optic sensors based on the Bragg gratings and interferometers in the application of monitoring heart and respiration rate of the human body: A comparative studycs
dc.typearticlecs
dc.identifier.doi10.3390/s18113713
dc.rights.accessopenAccesscs
dc.type.versionpublishedVersioncs
dc.type.statusPeer-reviewedcs
dc.description.sourceWeb of Sciencecs
dc.description.volume18cs
dc.description.issue11cs
dc.description.firstpageart. no. 3713cs
dc.identifier.wos000451598900123


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© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.
Except where otherwise noted, this item's license is described as © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.