Towards lung EIT image segmentation: automatic classification of lung tissue state from analysis of EIT monitored recruitment manoeuvres

Physiological Measurement
Bartłomiej GrychtolJohn H Arnold

Abstract

There is emerging evidence that the ventilation strategy used in acute lung injury (ALI) makes a significant difference in outcome and that an inappropriate ventilation strategy may produce ventilator-associated lung injury. Most harmful during mechanical ventilation are lung overdistension and lung collapse or atelectasis. Electrical impedance tomography (EIT) as a non-invasive imaging technology may be helpful to identify lung areas at risk. Currently, no automated method is routinely available to identify lung areas that are overdistended, collapsed or ventilated appropriately. We propose a fuzzy logic-based algorithm to analyse EIT images obtained during stepwise changes of mean airway pressures during mechanical ventilation. The algorithm is tested on data from two published studies of stepwise inflation-deflation manoeuvres in an animal model of ALI using conventional and high-frequency oscillatory ventilation. The timing of lung opening and collapsing on segmented images obtained using the algorithm during an inflation-deflation manoeuvre is in agreement with well-known effects of surfactant administration and changes in shunt fraction. While the performance of the algorithm has not been verified against a gold standard,...Continue Reading

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Citations

Nov 19, 2013·Critical Care : the Official Journal of the Critical Care Forum·Davide ChiumelloSilvia Coppola
Jan 18, 2012·IEEE Transactions on Medical Imaging·Camille Gómez-LabergeGerhard K Wolf
Nov 10, 2011·Pediatric Critical Care Medicine : a Journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies·Camille Gómez-Laberge, Gerhard K Wolf
Apr 26, 2012·Physiological Measurement·Andy AdlerGerhard K Wolf
May 23, 2014·Physiological Measurement·Bartłomiej Grychtol, Andy Adler
Dec 7, 2011·Current Opinion in Critical Care·Giacomo BellaniAntonio Pesenti
May 31, 2013·Physiological Measurement·A ZifanB E Chapman
May 31, 2013·Physiological Measurement·Rebecca Yerworth, Richard Bayford
Apr 12, 2011·Current Opinion in Critical Care·Onnen MoererMichael Quintel
Jul 28, 2019·Biomedical Engineering Online·Geuk Young JangEung Je Woo
Apr 5, 2019·Minerva anestesiologica·Francesco VasquesLuigi Camporota
Jan 27, 2021·Physiological Measurement·Yen-Fen Ko, Kuo-Sheng Cheng

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