Dipyridamole myocardial contrast echocardiography in patients with single-vessel coronary artery disease: Perfusion, anatomic, and functional correlates
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Real-Time Myocardial Contrast Stress Echocardiography Using Bolus Application
2008, Ultrasound in Medicine and BiologyCitation Excerpt :Other studies, using continuous CA infusion (Agati et al. 1994; Hyodo et al. 2003; Korosoglou et al. 2004; Lepper et al. 2003; Wei et al. 1998b, 2001), have reported higher accuracies (Agati et al. 1994; Hyodo et al. 2003; Lepper et al. 2003), which might reflect the methodological difference. However, in contrast to the present study, these authors did not systematically evaluate all LV segments, either by exclusively investigating the LAD territory (Hyodo et al. 2003) or by lumping together several segments (Agati et al. 1994; Lepper et al. 2003). As expected, absolute signal intensities (A1 and A2) by bolus CA application provided no sufficient differentiation between territories perfused by critically or noncritically stenosed vessels.
Assessment of coronary stenoses of graded severity by myocardial contrast echocardiography
2002, Journal of the American Society of EchocardiographyCitation Excerpt :Therefore, a reduction in PI ratio between a stenotic and a control area reflects the presence of coronary stenoses associated with compromised vasodilatory reserve. The potential of MCE to assess coronary stenosis has been previously assessed with intra-arterial injection of sonicated contrast agents in animals17-19 and in humans.20-22 Recent technical advances have now enabled the study of myocardial perfusion by intravenous administration of contrast agents.1-3
Assessment of no-reflow phenomenon after acute myocardial infarction with harmonic angiography and intravenous pump infusion with levovist: Comparison with intracoronary contrast injection
2001, Journal of the American Society of EchocardiographyCitation Excerpt :Images were acquired into loops and reviewed frame-by-frame for quality control. As previously described, a 12-segment model of the left ventricle was used to assign the following contrast scores: 0, no enhancement; 0.5, patchy enhancement; and 1, homogeneous enhancement.2,5,6,20,21 The contrast score index was calculated by dividing the sum of the contrast scores for each segment by the number of segments analyzed.
Tissue-type plasminogen activator therapy versus primary coronary angioplasty: Impact on myocardial tissue perfusion and regional function 1 month after uncomplicated myocardial infarction
1998, Journal of the American College of CardiologyMyocardial contrast echo effect: The dilemma of coronary blood flow and volume
1995, Journal of the American College of CardiologyClinical application of quantitative analysis in real-time MCE
2005, European Journal of Echocardiography