Linked Life Data

2227488

Source:http://linkedlifedata.com/resource/pubmed/id/2227488

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1990-12-19
pubmed:abstractText
We tried to obtain an overview of the quantitative state of the retinal circulation. Optical density measurements by an image analyzer were performed on video fluorescein angiograms for the determination of dyedilution curves. To ensure that curves with a sharp peak were obtained, 1 ml sodium fluorescein 10% was flushed with 20 ml physiological saline. From dilution curves of a retinal circulation times, T(x) (x = 1, 25, 50, 75, and 100) and Tm, were calculated. T(1) corresponds to the difference in the time of initial dye appearance; T(50), to the so-called half-maxim time difference; T(100), to the difference in the time to peak intensity; and Tm, to the mean circulation time. T(50) showed the best reproducibility when it was examined at 49 retinal regions of 10 healthy volunteers with a double video-fluorescein angiogram that was obtained within 1 min. Normal values (mean +/- SD) at the temporal superior region of 37 healthy volunteers were as follows: T(1) = 0.87 +/- 0.66 s, T(25) = 1.52 +/- 0.48 s, T(50) = 1.83 +/- 0.50 s, T(75) = 2.12 +/- 0.56 s, T(100) = 2.73 +/- 0.76 s, and Tm = 2.69 +/- 1.25 s. We believe that these values give a general overview of the quantitative state of normal retinal circulation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0721-832X
pubmed:author
pubmed:issnType
Print
pubmed:volume
228
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
442-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Retinal circulation times in quantitative fluorescein angiography.
pubmed:affiliation
Department of Ophthalmology, Okayama University Medical School, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't