Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2003-10-22
pubmed:abstractText
The goal of our study was to investigate manometric balloon sensors of original conception in order to overcome the limitations of perfused and solid-state sensors in the assessment of the pharyngoesophageal motility abnormalities. A standard perfused probe for esophageal manometry was modified by applying fluid-filled floppy balloons 0.5-, 1-, and 2.5-cm long. The balloon sensor probe was tested at the bench with regard to the response to the applied pressures, the frequency-response curve, and the behavior during propagation of the peristaltic waves in an esophageal model. The physical properties of the balloon sensors proved to be adequate for pharyngoesophageal motility studies. The static response of the balloon probe to the applied pressures was linear. For the frequency-response curve, the upper cutoff frequency (A=1/square root of 2) was 23 Hz, resonance frequency was 16 Hz, and resonance amplification was 1.6. No statistically significant differences were observed between balloon sensors of different length with regard to amplitude and duration of recorded peristaltic waves (p>0.05). In conclusion, the balloon probe has the physical and technical characteristics required for the study of swallowing disorders.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
D
pubmed:status
MEDLINE
pubmed:issn
0179-051X
pubmed:author
pubmed:issnType
Print
pubmed:volume
18
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
249-54
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Balloon sensors for the manometric recording of the pharyngoesophageal tract: an experimental study.
pubmed:affiliation
Center for the Study and the Therapy of Diseases of the Esophagus and Swallow Clinic, University of Bologna, Bologna, Italy. mattioli@med.unibo.it
pubmed:publicationType
Journal Article, Evaluation Studies