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dc.creatorIvanović, Marija D.
dc.creatorPetrović, Jovana S.
dc.creatorSavić, Andrej
dc.creatorGligorić, Goran
dc.creatorMiletić, M
dc.creatorVukčević, Miodrag
dc.creatorBojović, Boško P.
dc.creatorHadžievski, Ljupčo
dc.creatorAllsop, Thomas P.
dc.creatorWebb, David J.
dc.date.accessioned2018-06-11T12:10:42Z
dc.date.available2018-06-11T12:10:42Z
dc.date.issued2018
dc.identifier.issn0967-3334 (print)
dc.identifier.issn1361-6579 (electronic)
dc.identifier.urihttp://stacks.iop.org/0967-3334/39/i=4/a=045009?key=crossref.e87349a78a923bdfbbc182222fc7cf5b
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/7637
dc.description.abstractObjective: The ventilators involved in non-invasive mechanical ventilation commonly provide ventilator support via a facemask. The interface of the mask with a patient promotes air leaks that cause errors in the feedback information provided by a pneumatic sensor and hence patient-ventilator asynchrony with multiple negative consequences. Our objective is to test the possibility of using chest-wall motion measured by an optical fibre-grating sensor as a more accurate non-invasive ventilator triggering mechanism. Approach: The basic premise of our approach is that the measurement accuracy can be improved by using a triggering signal that precedes pneumatic triggering in the neuro-ventilatory coupling sequence. We propose a technique that uses the measurement of chest-wall curvature by a long-period fibre-grating sensor. The sensor was applied externally to the rib-cage and interrogated in the lateral (edge) filtering scheme. The study was performed on 34 healthy volunteers. Statistical data analysis of the time lag between the fibregrating sensor and the reference pneumotachograph was preceded by the removal of the unwanted heartbeat signal by wavelet transform processing. Main results: The results show a consistent fibregrating signal advance with respect to the standard pneumatic signal by (230 +/- 100) ms in both the inspiratory and expiratory phases. We further show that heart activity removal yields a tremendous improvement in sensor accuracy by reducing it from 60 ml to 0.3 ml. Significance: The results indicate that the proposed measurement technique may lead to a more reliable triggering decision. Its imperviousness to air leaks, non-invasiveness, low-cost and ease of implementation offer good prospects for applications in both clinical and homecare ventilation.
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45010/RS//
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/691051/EU//
dc.rightsrestrictedAccess
dc.sourcePhysiological Measurement
dc.subjectlong-period grating sensor
dc.subjectnon-in
dc.subjectoptical fibres
dc.subjectventilator triggeringen
dc.titleReal-time chest-wall-motion tracking by a single optical fibre grating: a prospective method for ventilator triggering
dc.typearticleen
dc.rights.licenseARR
dcterms.abstractБојовић, Бошко П.; Aллсоп, Тхомас П.; Wебб, Давид Ј.; Савић, Aндреј; Петровић, Јована С.; Ивановић, Марија Д.; Глигорић, Горан; Милетић, М; Вукчевић, Миодраг; Хаджиевски, Љупчо;
dc.rights.holder© 2018 Institute of Physics and Engineering in Medicine
dc.citation.volume39
dc.citation.issue4
dc.citation.spage045009
dc.identifier.wos000431059600005
dc.identifier.doi10.1088/1361-6579/aab7ac
dc.identifier.scopus2-s2.0-85047372314


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