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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1983-3-11
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pubmed:abstractText |
To obtain normal values for left atrial function noninvasively, volumes of the left atrium and ventricle were calculated in 52 volunteers by 2-dimensional echocardiography. A light pen digitizing and computation system, controlled by a microprocessor, was used to outline the left atrium and ventricle in orthogonal apical views. Then, to calculate end-systolic and end-diastolic atrial and ventricular volumes, a modified Simpson's rule formula was used. End-systolic left atrial volume (mean +/- standard deviation) was 37 +/- 11.7 ml or 21 +/- 6.6 ml/m2. The change in left atrial volume from end-systole to end-diastole was 24 +/- 7.6 ml or 13.5 +/- 4.3 ml/m2, which represented 37 +/- 12.9% of left ventricular stroke volume. The mean fractional emptying of the left atrium was 65 +/- 8.9% and the conduit volume was 41 +/- 14.0 ml or 23 +/- 7.9 ml/m2. These values are similar to those reported in studies in which left atrial function was calculated from contrast angiography.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
0002-9149
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
51
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
336-40
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:6823848-Adult,
pubmed-meshheading:6823848-Aged,
pubmed-meshheading:6823848-Atrial Function,
pubmed-meshheading:6823848-Cardiac Volume,
pubmed-meshheading:6823848-Echocardiography,
pubmed-meshheading:6823848-Female,
pubmed-meshheading:6823848-Humans,
pubmed-meshheading:6823848-Male,
pubmed-meshheading:6823848-Middle Aged,
pubmed-meshheading:6823848-Myocardial Contraction,
pubmed-meshheading:6823848-Reference Values,
pubmed-meshheading:6823848-Stroke Volume
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pubmed:year |
1983
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pubmed:articleTitle |
Normal left atrial function determined by 2-dimensional echocardiography.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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