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Multimodal ultrasound assessment of the diaphragm during the maximal inspiratory pressure maneuver

2026-10Artigo científico Acesso aberto
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datacite.subject.sdg03:Saúde de Qualidade
dc.contributor.authorLeote, João
dc.contributor.authorNunes, Daniela
dc.contributor.authorOliveira, Inês
dc.contributor.authorSilva, Rafael
dc.contributor.authorPereira, Marco
dc.contributor.authorBacariza, Jacobo
dc.contributor.authorGonzalez, Filipe
dc.contributor.authorHermínia Brites Dias
dc.date.accessioned2026-10-08T15:55:30Z
dc.date.available2026-10-08T15:55:30Z
dc.date.issued2026-10
dc.description.abstractDiaphragm ultrasound (DU) is increasingly used to assess diaphragmatic function, but its relationship with maximal inspiratory pressure (MIP), particularly when both are acquired during the same maneuver, remains unclear. This exploratory cross-sectional study investigated associations between MIP and DU parameters, compared diaphragmatic strain obtained with two different probes and imaging planes, and explored the association between diaphragmatic strain and the diaphragm thickening fraction (TF). Eleven healthy participants (median age 21 years; median body mass index 22.1 kg/m2) with normal phrenic nerve conduction, transcranial magnetic stimulation, and occlusion pressure at 100 ms underwent DU during the MIP maneuver using phased-array and linear probes at the subcostal window and zone of apposition, respectively. Each ultrasound acquisition was paired with an MIP recorded simultaneously during that acquisition; the two probes were therefore studied within the same session and not during a single shared maneuver. No a priori sample size or power calculation was performed. MIP showed moderate positive associations with diaphragmatic excursion (DE) (rs = 0.603, p = 0.050) and TF (rs = 0.482, p = 0.133), and moderate negative associations with time to peak diaphragmatic excursion (TPDE) (rs = −0.400, p = 0.223) and linear-probe strain (rs = −0.469, p = 0.241). Linear-probe strain was strongly associated with TF (rs = −0.710, p = 0.048). Every bootstrap 95% confidence interval included zero. In this exploratory sample, DE and TF showed the strongest associations with MIP, while zone-of-apposition strain was strongly associated with TF; they merit evaluation as part of a multimodal DU assessment as candidate quantitative parameters rather than validated markers.eng
dc.identifier.citationLeote J, Nunes D, Oliveira I, Silva R, Pereira M, Dias H, et al. Multimodal ultrasound assessment of the diaphragm during the maximal inspiratory pressure maneuver. J Imaging. 2026;12(10):486.
dc.identifier.doi10.3390/jimaging12100486
dc.identifier.issn2313-433X
dc.identifier.urihttp://hdl.handle.net/10400.21/23215
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI AG
dc.relation.hasversionhttps://www.mdpi.com/2313-433X/12/10/486
dc.relation.ispartofJournal of Imaging
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectDiaphragm ultrasound
dc.subjectSpeckle-tracking strain
dc.subjectStrain imaging
dc.subjectMaximal inspiratory pressure
dc.subjectDiaphragm thickening fraction
dc.subjectDiaphragmatic excursion
dc.subjectRespiratory muscle function
dc.subjectPhrenic nerve conduction
dc.titleMultimodal ultrasound assessment of the diaphragm during the maximal inspiratory pressure maneuvereng
dc.typejournal article
dcterms.referenceshttps://www.mdpi.com/article/10.3390/jimaging12100486/s1
dspace.entity.typePublication
oaire.citation.issue10
oaire.citation.startPage486
oaire.citation.titleJournal of Imaging
oaire.citation.volume12
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameLeote
person.familyNameDias
person.givenNameJoão
person.givenNameMaria Hermínia Monteiro Brites
person.identifier.ciencia-id471A-8CA6-5DCD
person.identifier.ciencia-idE211-FB1B-04E3
person.identifier.orcid0000-0001-9659-8438
person.identifier.orcid0000-0003-1257-8734
person.identifier.ridAFL-8310-2022
person.identifier.scopus-author-id55671930200
relation.isAuthorOfPublicationd3b4e894-6bbd-489a-a4f7-af3c61391196
relation.isAuthorOfPublicationb7b7e7d9-83b2-4d63-9176-4ed73cf6b939
relation.isAuthorOfPublication.latestForDiscoveryd3b4e894-6bbd-489a-a4f7-af3c61391196

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