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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
11
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pubmed:dateCreated |
1995-3-7
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pubmed:abstractText |
To clarify the clinical significance of Tl-201 reverse redistribution (RR), 33 patients with chronic coronary artery disease (CAD) underwent stress-redistribution Tl-201 cardiac imaging with rest reinjection, coronary arteriography, and 2D-echocardiography. Rest Tc-99m MIBI scintigraphy was also performed in 27 of the 33 patients. A total of 495 segments were analyzed for Tl-201 scintigraphy (405 for Tc-99m MIBI). Each segment was assigned to one of the major coronary artery territories. Two patterns of RR were identified; 1) pattern A (RR-A) showed normal Tl-201 uptake on stress images and lower than normal on redistribution images, and 2) pattern B (RR-B) showed lower than normal Tl-201 uptake on stress images with further decrease on redistribution images. The RR phenomenon was found in 46 (9% of the total) segments; 25 with RR-A and 21 with RR-B. Reverse redistribution pattern A segments had lower Tc-99m MIBI uptake (84 +/- 9% versus 92 +/- 10%, P < 0.0001) and a higher percentage of stenosed coronary arteries (80% versus 49%, P < 0.05) compared to normal segments (n = 204, 41% of the total). No difference in wall motion was observed between RR-A and normal segments. Of the 25 segments with RR-A, 14 showed enhanced Tl-201 uptake after reinjection (Re+) and 11 remained unchanged after reinjection (Re-). Segments that were Re- showed significantly (P < 0.05) lower Tc-99m MIBI uptake (79 +/- 9%) compared to Re+ segments (87 +/- 8%) and normal segments (92 +/- 10%).(ABSTRACT TRUNCATED AT 250 WORDS)
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0363-9762
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
19
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
956-61
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:7842588-Coronary Angiography,
pubmed-meshheading:7842588-Coronary Disease,
pubmed-meshheading:7842588-Echocardiography,
pubmed-meshheading:7842588-Exercise Test,
pubmed-meshheading:7842588-Female,
pubmed-meshheading:7842588-Heart,
pubmed-meshheading:7842588-Heart Catheterization,
pubmed-meshheading:7842588-Humans,
pubmed-meshheading:7842588-Male,
pubmed-meshheading:7842588-Middle Aged,
pubmed-meshheading:7842588-Technetium Tc 99m Sestamibi,
pubmed-meshheading:7842588-Thallium Radioisotopes,
pubmed-meshheading:7842588-Time Factors
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pubmed:year |
1994
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pubmed:articleTitle |
Reverse redistribution in Tl-201 stress-redistribution myocardial scintigraphy. Effect of rest reinjection.
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pubmed:affiliation |
Cattedra di Medicina Nucleare, Università Federico II, Napoli, Italy.
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pubmed:publicationType |
Journal Article,
Comparative Study
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