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dc.contributor.authorLoizou, Christos P.-
dc.contributor.authorMatamis, Dimitrios-
dc.contributor.authorMinas, Giorgos-
dc.contributor.authorKyprianou, Theodoros-
dc.contributor.authorLoizou, Christakis D.-
dc.contributor.authorSoilemezi, Eleni-
dc.contributor.authorKotco, Entela-
dc.contributor.authorPattichis, Constantinos S.-
dc.identifier.citationIEEE Journal of Translational Engineering in Health and Medicine, 2018, vol. 6en_US
dc.description.abstractMeasurements of ultrasound diaphragmatic motion, amplitude, force, and velocity of contraction may provide important and essential information about diaphragmatic fatigue, weakness, or paralysis. In this paper, we propose and evaluate a semi-automated analysis system for measuring the diaphragmatic motion and estimating the maximum relaxation rate (MRR_SAUS) from ultrasound M-mode images of the diaphragmatic muscle. The system was evaluated on 27 M-mode ultrasound images of the diaphragmatic muscle [20 with no resistance (NRES) and 7 with resistance (RES)]. We computed semi-automated ultrasound MRR measurements on all NRES/RES images, using the proposed system (MRR_SAUS = 3.94 ± 0.91/4.98 ± 1.98 [1/s]), and compared them with the manual measurements made by a clinical expert (MRR_MUS = 2.36 ± 1.19/5.8 ± 2.1 [1/s],) and those made by a reference manual method (MRR_MB = 3.93 ± 0.89/3.73 ± 0.52 [1/sec], performed manually with the Biopac system. MRR_SAUS and MRR_MB measurements were not statistically significantly different for NRES and RES subjects but were significantly different with the MRR-MUS measurements made by the clinical expert. It is anticipated that the proposed system might be used in the future in the clinical practice in the assessment and follow up of patients with diaphragmatic weakness or paralysis. It may thus potentially help to understand post-operative pulmonary dysfunction or weaning failure from mechanical ventilation. Further validation and additional experimentation in a larger sample of images and different patient groups is required for further validating the proposed system.en_US
dc.publisherInstitute of Electrical and Electronics Engineers Inc.en_US
dc.relation.ispartofIEEE Journal of Translational Engineering in Health and Medicineen_US
dc.rights© 2018 IEEEen_US
dc.subjectDiaphragmatic muscleen_US
dc.subjectDiaphragmatic motion analysisen_US
dc.subjectDiaphragmatic ultrasounden_US
dc.subjectMaximum relaxation rate (MRR)en_US
dc.titleA New Method for Diaphragmatic Maximum Relaxation Rate Ultrasonographic Measurement in the Assessment of Patients With Diaphragmatic Dysfunctionen_US
dc.collaborationCyprus University of Technologyen_US
dc.collaborationPapageorgiou General Hospitalen_US
dc.collaborationNicosia General Hospitalen_US
dc.collaborationImperial College Londonen_US
dc.collaborationUniversity of Cyprusen_US
dc.subject.categoryComputer and Information Sciencesen_US
dc.subject.categoryElectrical Engineering - Electronic Engineering - Information Engineeringen_US
dc.journalsOpen Accessen_US
dc.countryUnited Kingdomen_US
dc.subject.fieldNatural Sciencesen_US
dc.subject.fieldEngineering and Technologyen_US
dc.publicationPeer Revieweden_US
item.fulltextWith Fulltext-
crisitem.journal.publisherIEEE- of Electrical Engineering, Computer Engineering and Informatics- of Engineering and Technology- of Engineering and Technology-
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