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- W2022288004 abstract "<h2>Abstract</h2> To examine the significance of technetium-99m pyrophosphate/thallium-201 scintigraphic overlap as an indicator of identifying early coronary reperfusion (≤3 hours), 32 patients, in whom coronary recanalization was attempted for acute myocardial infarction (AMI), underwent myocardial imaging 3 days after the onset of AMI. The imaging was performed by simultaneous dual emission computed tomography, which allows simultaneous recording of technetium-99m pyrophosphate and thallium-201 images and comparison between both images in the same slice. The patients were separated into 3 groups: 9 patients in whom reperfusion was successful and showed scintigraphic overlap (group A), 12 with successful recanalization but no overlap (group B) and 11 with neither coronary reflow nor overlap (group C). No patient in whom reperfusion failed showed scintigraphic overlap (p < 0.05). Groups A and B were comparable in age, infarct vessel, collateral circulation, residual coronary stenosis and cumulative release of creatine kinase-MB isoenzyme. However, compared with group B, group A had a shorter interval between onset of AMI and reflow (2.5 ± 0.8 vs 4.8 ± 1.3 hours, p < 0.001). The presence of scintigraphic overlap identified early coronary reflow with a sensitivity of 80%, specificity of 91%, positive predictive accuracy of 89% and negative predictive accuracy of 83%. Thus, technetium-99m/thallium-201 overlap on dual emission computed tomography can be used as an index of documenting early recanalization and might reflect the presence of salvaged myocardium adjacent to the necrotic tissue." @default.
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- W2022288004 date "1988-06-01" @default.
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- W2022288004 title "Significance of technetium-99m/thallium-201 overlap on simultaneous dual emission computed tomography in acute myocardial infarction" @default.
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- W2022288004 doi "https://doi.org/10.1016/0002-9149(88)91151-4" @default.
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