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Author (up) Debora Gil; Oriol Rodriguez-Leon; Petia Radeva; Josepa Mauri
Title Myocardial Perfusion Characterization From Contrast Angiography Spectral Distribution Type Journal Article
Year 2008 Publication IEEE Transactions on Medical Imaging Abbreviated Journal
Volume 27 Issue 5 Pages 641-649
Keywords Contrast angiography; myocardial perfusion; spectral analysis.
Abstract Despite recovering a normal coronary flow after acute myocardial infarction, percutaneous coronary intervention does not guarantee a proper perfusion (irrigation) of the infarcted area. This damage in microcirculation integrity may detrimentally affect the patient survival. Visual assessment of the myocardium opacification in contrast angiography serves to define a subjective score of the microcirculation integrity myocardial blush analysis (MBA). Although MBA correlates with patient prognosis its visual assessment is a very difficult task that requires of a highly expertise training in order to achieve a good intraobserver and interobserver agreement. In this paper, we provide objective descriptors of the myocardium staining pattern by analyzing the spectrum of the image local statistics. The descriptors proposed discriminate among the different phenomena observed in the angiographic sequence and allow defining an objective score of the myocardial perfusion.
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Call Number IAM @ iam @ GRR2008 Serial 1541
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