| Ultrasonic tissue characterization for coronary care unit patients with acute myocardial infarction. | |
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MedLine Citation:
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PMID: 9550177 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The ultrasonic integrated backscatter of myocardium changes in infarction and ischemia. On the third day after acute myocardial infarction, 30 patients underwent ultrasonic tissue characterization from the parasternal short-axis view. With a composite parameter, the phase-weighted variation, sensitivity, specificity, and accuracy for diagnosing multivessel coronary artery disease were 84.6%, 52.9% and 66.6%, respectively. Using 67 degrees as the cutoff value for the phase deviation of the backscatter power curve, the recanalization of the infarct-related artery could be detected with a positive predictive value of 77.7% and a negative predictive value of 66.6%. Ultrasonic tissue characterization is a feasible technique for detecting the multivessel coronary artery diseases and the recanalization of infarct-related artery for patients with acute myocardial infarction. The diminished cardiac cycle-dependent variation in integrated backscatter and increased phase deviation can differentiate patent coronary arteries from those coronary arteries with anatomically significant stenoses. |
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Authors:
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L C Lin; C C Wu; Y L Ho; C W Lin; W J Chen; M F Chen; C S Liau; Y T Lee |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Ultrasound in medicine & biology Volume: 24 ISSN: 0301-5629 ISO Abbreviation: Ultrasound Med Biol Publication Date: 1998 Feb |
Date Detail:
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Created Date: 1998-06-03 Completed Date: 1998-06-03 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 0410553 Medline TA: Ultrasound Med Biol Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 187-96 Citation Subset: IM |
Affiliation:
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Department of Internal Medicine, National Taiwan University Hospital, Taipei, ROC. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Coronary Angiography Echocardiography Female Humans Male Middle Aged Myocardial Infarction / ultrasonography* Reperfusion Reproducibility of Results Sensitivity and Specificity |
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