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Figure 2 Dynamic Changes of Subendocardial WT on Apical 4-Chamber View With RTMCE

A 65-year-old woman presented with shortness of breath. Apical 40-chamber view of real-time myocardial contrast echocardiography (RTMCE) with contrast pulse sequencing was obtained during dobutamine stress. On the pre-MCR images, WT was normal, whereas during MCR an apical subendocardial WT abnormality was evident, because of the subendocardial perfusion defect. Subendocardial WT measured 20%, whereas transmural WT was measured to be 50%. At complete replenishment (4 s after high MI impulse), the defect disappeared. Abbreviations as in Figure 1.