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rdf:type | |
lifeskim:mentions | |
pubmed:dateCreated |
1992-12-9
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pubmed:abstractText |
To evaluate the myocardial damage associated with aortic regurgitation, thallium-201 myocardial scintigraphy was performed in 13 patients with aortic regurgitation. The data obtained by thallium-201 single photon emission computed tomography were expressed as the extent score, and were compared with data by echocardiography. The results were as follows: 1. In 11 of 13 patients, there were moderate Tl defects in the distribution of bull's eye map, 80% in the apex, 50% in the inferior and lateral regions, 30% in the anterior region and 10% in the septal region. The mean extent score was 22.3 +/- 11.0%. 2. The extent score correlated with the increase in aortic regurgitant flow volume. The extent score according to the Sellers' classifications II, III, and IV was 13.8 +/- 3.7%, 20.1 +/- 9.8% and 31.9 +/- 10.2%, respectively. 3. There was a good negative correlation between the extent score and fractional shortening (r = -0.66, p < 0.01), however, no significant correlation was observed between the extent score and the left ventricular end-diastolic volume. These results suggest that Tl defects in patients with aortic regurgitation are mainly due to myocardial ischemia associated with a decrease in coronary perfusion pressure and that the extent score may sensitively reflect the severity of myocardial damage in cases with aortic regurgitation.
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pubmed:language |
jpn
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:author | |
pubmed:volume |
28
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
109-13; discussion 114-5
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pubmed:dateRevised |
2008-2-26
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pubmed:meshHeading |
pubmed-meshheading:1418870-Adult,
pubmed-meshheading:1418870-Aged,
pubmed-meshheading:1418870-Aortic Valve Insufficiency,
pubmed-meshheading:1418870-Echocardiography,
pubmed-meshheading:1418870-Electrocardiography,
pubmed-meshheading:1418870-Female,
pubmed-meshheading:1418870-Heart,
pubmed-meshheading:1418870-Heart Catheterization,
pubmed-meshheading:1418870-Humans,
pubmed-meshheading:1418870-Male,
pubmed-meshheading:1418870-Middle Aged,
pubmed-meshheading:1418870-Myocardium,
pubmed-meshheading:1418870-Thallium Radioisotopes,
pubmed-meshheading:1418870-Tomography, Emission-Computed, Single-Photon
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pubmed:year |
1992
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pubmed:articleTitle |
[Tl-201 myocardial scintigraphic findings in patients with aortic regurgitation].
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pubmed:affiliation |
Second Department of Internal Medicine, Ehime University School of Medicine.
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pubmed:publicationType |
Journal Article,
Comparative Study,
English Abstract
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