PT Journal
AU Debora Gil
   Oriol Rodriguez-Leon
   Petia Radeva
   Josepa Mauri
TI Myocardial Perfusion Characterization From Contrast Angiography Spectral Distribution
SO IEEE Transactions on Medical Imaging
PY 2008
BP 641
EP 649
VL 27
IS 5
DI 10.1109/TMI.2007.912814
DE Contrast angiography; myocardial perfusion; spectral analysis.
AB 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.
ER