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- aggregation classification "A1".
- aggregation creator B469577.
- aggregation creator B469578.
- aggregation creator person.
- aggregation date "2000".
- aggregation format "application/pdf".
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- aggregation isPartOf urn:issn:0340-6997.
- aggregation language "eng".
- aggregation rights "I have transferred the copyright for this publication to the publisher".
- aggregation subject "Medicine and Health Sciences".
- aggregation title "Low-dose dobutamine gated single-photon emission tomography: comparison with stress echocardiography".
- aggregation abstract "Perfusion scintigraphy provides important information regarding the presence of viable tissue after myocardial infarction. Defects of moderate severity, however, may represent viable myocardium, necrotic tissue or a mixture of both. In this study the presence or absence of inotropic response in the infarcted area was assessed by low-dose dobutamine tetrofosmin gated single-photon emission tomography (LDD gated SPET), Results were compared with those obtained with stress echocardiography (SE). Twenty-five patients with acute myocardial infarction were studied. Gated SPET myocardial perfusion imaging was performed 60 min after the injection of technetium-99m tetrofosmin (925 MBq) at rest using a triple-headed camera equipped with focussing collimators (Cardiofocal). Two consecutive acquisitions were performed according to a "fast" gated SPET protocol (3x20 stops, 9 s/stop, 64x64 pixel matrix, zoom 1.23) with the subjects remaining in the same position. The first acquisition was obtained at rest; the second acquisition was obtained under infusion of 10 mu g kg(-1) min(-1) dobutamine. The severity of regional dysfunction, wall thickening severity (WTsev), was assessed and quantified using a method based on circumferential profile analysis. SE was performed at rest and during infusion of 5 and 10 mu g kg(-1) min(-1) dobutamine. Two patients could not be analysed because of disturbing gastro-intestinal activity on the perfusion study. Under dobutamine 11 patients presented a significant change in WTsev (three showed normalisation, five an improvement and three a deterioration), while in 12 patients the WTsev score remained unchanged. The overall concordance between LDD gated SPET and SE was 83%. In patients with per fusion defects of moderate severity the concordance was 90% (9/10). It may be concluded that functional changes in infarcted areas induced by dobutamine can be detected with gated SPET. Good agreement was observed between LDD gated SPET and SE for the identification of inotropic reserve in infarcted areas.".
- aggregation authorList BK807903.
- aggregation endPage "418".
- aggregation issue "4".
- aggregation startPage "413".
- aggregation volume "27".
- aggregation aggregates 3131211.
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- aggregation similarTo LU-2916310.