Ivanovic, M. (57038326200)M. (57038326200)IvanovicPetrovic, J. (11541124800)J. (11541124800)PetrovicMiletic, M. (57038553800)M. (57038553800)MileticDanicic, A. (36643424800)A. (36643424800)DanicicBojovic, B. (55903740900)B. (55903740900)BojovicVukcevic, M. (6602095465)M. (6602095465)VukcevicLazovic, B. (36647776000)B. (36647776000)LazovicGluvic, Z. (24460256500)Z. (24460256500)GluvicHadzievski, L.J.. (6602497159)L.J.. (6602497159)HadzievskiAllsop, T. (9740404900)T. (9740404900)AllsopWebb, D.J. (35432474100)D.J. (35432474100)Webb2025-07-022025-07-022015https://doi.org/10.1109/EMBC.2015.7319397https://www.scopus.com/inward/record.uri?eid=2-s2.0-84953236898&doi=10.1109%2fEMBC.2015.7319397&partnerID=40&md5=55d2ab1d7311c70a7524174448eb0e81https://remedy.med.bg.ac.rs/handle/123456789/13539Non-invasive ventilation performed through an oronasal mask is a standard in clinical and homecare mechanical ventilation. Besides all its advantages, inevitable leaks through the mask cause errors in the feedback information provided by the airflow sensor and, hence, patient-ventilator asynchrony with multiple negative consequences. Here we investigate a new way to provide a trigger to the ventilator. The method is based on the measurement of rib cage movement at the onset of inspiration and during breathing by fibre-optic sensors. In a series of simultaneous measurements by a long-period fibre grating sensor and pneumotachograph we provide the statistical evidence of the 200 ms lag of the pneumo with respect the fibre-optic signal. The lag is registered consistently across three independent delay metrics. Further, we discuss exceptions from this trend and identify the needed improvements to the proposed fibre-sensing scheme. © 2015 IEEE.