Keywords: Myocardium, Heart, myocardial infarctionA new tagging method has been proved as a sensitive approach for assessment of regional deformation in the infarcted pig’s heart. The linear tags were placed in 60-degree pattern offsets and aligned with the AHA segments. The tagging analysis algorithm uses local Fourier transformation of the isolated spectral peaks. We have shown the temporal changes in circumferential strain of the infarcted segments of myocardium and faster recovery of myocardial strain followed by 60-min ischemia-reperfusion injury in comparison with 90-min. Circumferential strain was a more sensitive parameter for earlier detection of regional contractile dysfunction in comparison with ejection fraction.
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