* . *

Different from the other techniques, the MCE allows estimating the anatomical and perfusional integrity of coronary microcirculation-a precise delineation of area of necrosis-even in the presence of total coronary occlusion (Fig. 5). Conversely this technique is limited by the inadequate echocardiographic windows in a substantial percentage of patients by some echocardiographic attenuation problems, and it is still missing sufficient clinical evidences in the field of the viable myocardium.