Linked Life Data

1721769

Source:http://linkedlifedata.com/resource/pubmed/id/1721769

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
1992-1-27
pubmed:abstractText
From the view point of urodynamics, the lower urinary tract might be able to be simulated by a hydrodynamic model, consisting of a spherical balloon corresponding to the bladder and a circular tube to the urethra. In this hydrodynamic model, the diameter of the tube corresponding to the posterior urethra was assumed to become smaller with increase of the prostatic pressure according to the development of BPH. On this assumption, Bernoulli's equation might be adopted. Because of the turbulent flow in the tube, the velocity of flow was expressed as a function of the invariants, which indicated the pressure in the balloon, the respective lengths and diameters of narrow tube and wide tube, coefficients due to pipe friction, pipe fitting and pipe enlargement. The findings suggested that the smaller the diameter of the narrow tube, the smaller the flow volume showed with the development of BPH. In conclusion the urodynamics in the lower urinary tract could be simulated quantitatively by this model. The study may lead to the development of the urodynamic simulation model for the lower urinary tract.
pubmed:language
jpn
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0018-1994
pubmed:author
pubmed:issnType
Print
pubmed:volume
37
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1249-53
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
[A study of the simulation model of the lower urinary tract for urodynamics--(the first report)--theoretical evaluation of hydrodynamic model].
pubmed:affiliation
Department of Urology, Kyoto Prefectural University of Medicine.
pubmed:publicationType
Journal Article, English Abstract