Aims: Our purpose was to test the hypothesis that Tissue Doppler Imaging (TDI)-derived positive preejection velocity (PPV) is associated with transmural extent of necrosis in delayed-enhancement cardio-magnetic resonance (DE-CMR) in patients with reperfused myocardial infarction (MI). Methods and results: Longitudinal myocardial velocities were recorded by TDI in 24 patients with MI reperfused with primary angioplasty, using an Acuson-Sequoia â equipment. The same day a CMR study was performed,

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... including cine images in short axis and long axis views and DE images in the same views using a 3D-T1-Turbo-field-echo sequence, 15 min after administration of gadodiamide. Transmural extent of hyperenhancement in each segment was compared to presence or absence of PPV wave. A total of 384 segments were evaluated. Normo-hypokinetic segments (100%) showed a PPV wave, whereas it was only present in 53% of akineticedyskinetic segments (p ¼ 0.0005). One hundred percent of the segments with absent-mild DE showed a PPV wave; this percentage was lower in segments with intermediate and transmural DE (63 and 10%, p ¼ 0.001). The presence of PPV wave in an akinetic segment ruled out transmural necrosis with 97% sensitivity and 90% specificity.