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- W2077887963 abstract "Myocardial contrast echocardiography (MCE) is useful for predicting the functional recovery of akinetic segments in patients undergoing primary angioplasty after acute myocardial infraction (AMI). Recently, parametric imaging-based quantitative MCE has been developed for measuring perfusion. Our aims were: a) to measure perfusion in akinetic myocardial segments in patients undergoing primary angioplasty using parametric imaging-based quantitative MCE; and b) to assess the usefulness of these measurements in predicting functional recovery of these segments.The study group comprised 49 consecutive patients undergoing primary angioplasty. Both MCE and standard echocardiography were performed between 2 and 5 days after AMI. Six months later, additional standard echocardiography and coronary angiography were performed. Perfusion was quantified independently off-line from parametric images.The patients' mean age was 62.3+/-14.5 years (39 men; 79.2%). Some 170 akinetic segments were detected. Of these, 105 (62.1%) recovered function. The quantitative MCE parameter that best predicted functional recovery was myocardial blood flow velocity (beta): the area under the receiver operating characteristic (ROC) curve was 0.96 (95% CI, 0.92-0.99). For a cut-off point of 31 dB/s, the sensitivity was 87.62%, the specificity was 95.31%, the positive predictive value was 96.8%, and the negative predictive value was 82.43%. These results were better than those obtained using qualitative methods for assessing myocardial perfusion.Perfusion measurement by parametric imaging-based quantitative MCE is useful for predicting the functional recovery of akinetic segments in patients undergoing primary angioplasty after AMI. The technique provides superior information to older qualitative methods." @default.
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- W2077887963 date "2005-06-01" @default.
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- W2077887963 title "Usefulness of Parametric Imaging-Based Quantitative Myocardial Contrast Echocardiography in Predicting the Functional Recovery of Akinetic Segments Following Primary Angioplasty in Acute Myocardial Infarction Patients" @default.
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- W2077887963 doi "https://doi.org/10.1016/s1885-5857(06)60251-x" @default.
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