Pharyngeal clearance and pharyngeal transit time determined by a biomagnetic method in normal humans

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dc.contributor.authorMiquelin, C. A.
dc.contributor.authorBraga, FJHN
dc.contributor.authorDantas, R. O.
dc.contributor.authorOliveira, R. B.
dc.contributor.authorBaffa, O.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:28:44Z
dc.date.available2014-05-20T15:28:44Z
dc.date.issued2001-09-01
dc.description.abstractClearance and transit time are parameters of great value in studies of digestive transit. Such parameters are nowadays obtained by means of scintigraphy and videofluoroscopy, with each technique having advantages and disadvantages. In this study we present a new, noninvasive method to study swallowing pharyngeal clearance (PC) and pharyngeal transit time (PTT). This new method is based on variations of magnetic flux produced by a magnetic bolus passing through the pharynx and detected by an AC biosusceptometer (ACB). These measurements may be performed in a simple way. cause no discomfort. and do not use radiation. We measured PC in 8 volunteers (7 males and I female. 23-33 years old) and PTT in 8 other volunteers (7 males and I female. 21-29 years old). PC was 0.82 +/- 0.10 s (mean +/- SD) and PTT was 0.75 +/- 0.03 s. The results were similar for PC but longer for PTT than those determined by means of other techniques. We conclude that the biomagnetic method can be used to evaluate PC and PTT.en
dc.description.affiliationUniv São Paulo, Fac Med Ribeirao Preto, Dept Clin Med, BR-14049900 São Paulo, Brazil
dc.description.affiliationUniv São Paulo, Dept Fis & Matemat, Fac Filosofia Ciências & Letras Ribeirao Pret, BR-14049900 São Paulo, Brazil
dc.description.affiliationUniv Estadual Paulista, Inst Biociencias, Dept Fis & Biofis, São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Biociencias, Dept Fis & Biofis, São Paulo, Brazil
dc.format.extent308-312
dc.identifierhttp://dx.doi.org/10.1007/s00455-001-0089-1
dc.identifier.citationDysphagia. New York: Springer, v. 16, n. 4, p. 308-312, 2001.
dc.identifier.doi10.1007/s00455-001-0089-1
dc.identifier.issn0179-051X
dc.identifier.urihttp://hdl.handle.net/11449/38485
dc.identifier.wosWOS:000171606800010
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofDysphagia
dc.relation.ispartofjcr2.531
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectpharyngeal clearancept
dc.subjectpharyngeal transit timept
dc.subjectmagnetismpt
dc.subjectbiomagnetismpt
dc.subjectbiosusceptometerpt
dc.subjectdeglutitionpt
dc.subjectdeglutition disorderspt
dc.titlePharyngeal clearance and pharyngeal transit time determined by a biomagnetic method in normal humansen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
unesp.author.orcid0000-0002-0622-2814[5]

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