Document Detail

Ultrasonic tissue characterization for coronary care unit patients with acute myocardial infarction.
MedLine Citation:
PMID:  9550177     Owner:  NLM     Status:  MEDLINE    
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.
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:
Type:  Journal Article    
Journal Detail:
Title:  Ultrasound in medicine & biology     Volume:  24     ISSN:  0301-5629     ISO Abbreviation:  Ultrasound Med Biol     Publication Date:  1998 Feb 
Date Detail:
Created Date:  1998-06-03     Completed Date:  1998-06-03     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0410553     Medline TA:  Ultrasound Med Biol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  187-96     Citation Subset:  IM    
Department of Internal Medicine, National Taiwan University Hospital, Taipei, ROC.
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MeSH Terms
Coronary Angiography
Middle Aged
Myocardial Infarction / ultrasonography*
Reproducibility of Results
Sensitivity and Specificity

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