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dc.contributor.authorCaruana, LR
dc.contributor.authorParatz, JD
dc.contributor.authorChang, A
dc.contributor.authorBarnett, AG
dc.contributor.authorFraser, JF
dc.date.accessioned2018-01-25T12:30:54Z
dc.date.available2018-01-25T12:30:54Z
dc.date.issued2015
dc.identifier.issn0310-057X
dc.identifier.urihttp://hdl.handle.net/10072/172221
dc.description.abstractElectrical impedance tomography is a novel technology capable of quantifying ventilation distribution in the lung in real time during various therapeutic manoeuvres. The technique requires changes to the patient’s position to place the electrical impedance tomography electrodes circumferentially around the thorax. The impact of these position changes on the time taken to stabilise the regional distribution of ventilation determined by electrical impedance tomography is unknown. This study aimed to determine the time taken for the regional distribution of ventilation determined by electrical impedance tomography to stabilise after changing position. Eight healthy, male volunteers were connected to electrical impedance tomography and a pneumotachometer. After 30 minutes stabilisation supine, participants were moved into 60 degrees Fowler’s position and then returned to supine. Thirty minutes was spent in each position. Concurrent readings of ventilation distribution and tidal volumes were taken every five minutes. A mixed regression model with a random intercept was used to compare the positions and changes over time. The anterior-posterior distribution stabilised after ten minutes in Fowler’s position and ten minutes after returning to supine. Left-right stabilisation was achieved after 15 minutes in Fowler’s position and supine. A minimum of 15 minutes of stabilisation should be allowed for spontaneously breathing individuals when assessing ventilation distribution. This time allows stabilisation to occur in the anterior-posterior direction as well as the left-right direction.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherAustralian Society of Anaesthetists
dc.publisher.urihttp://www.aaic.net.au/Document/?D=20140345
dc.relation.ispartofpagefrom88
dc.relation.ispartofpageto91
dc.relation.ispartofissue1
dc.relation.ispartofjournalAnaesthesia and Intensive Care
dc.relation.ispartofvolume43
dc.subject.fieldofresearchBiomedical and clinical sciences
dc.subject.fieldofresearchClinical sciences not elsewhere classified
dc.subject.fieldofresearchcode32
dc.subject.fieldofresearchcode320299
dc.titleThe time taken for the regional distribution of ventilation to stabilise: An investigation using electrical impedance tomography
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dc.description.versionVersion of Record (VoR)
gro.rights.copyright© 2015 Australian Society of Anaesthetists. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
gro.hasfulltextFull Text
gro.griffith.authorParatz, Jenny D.
gro.griffith.authorFraser, John F.


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