Assessment of the physiologic significance of coronary disease with dipyridamole real-time myocardial contrast echocardiography
Comparison with technetium-99m sestamibi single-photon emission computed tomography and quantitative coronary angiography
Marcel Peltier, MD*,
David Vancraeynest, MD*,
Agnès Pasquet, MD*,
Taniyel Ay, MD*,
Véronique Roelants, MD*,
Anne-Marie D'hondt, MS*,
Jacques A. Melin, MD, PhD* and
Jean-Louis J. Vanoverschelde, MD, PhD*,*
* Divisions of Cardiology and Nuclear Medicine, Université Catholique de Louvain, Brussels, Belgium
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Figure 1 Distribution of segmental artifacts on real-time myocardial contrast echocardiography. AL = anterior lateral; AA = apical anterior; BA = basal anterior; BAS = basal antero-septal; BI = basal inferior; BL = basal lateral; BP = basal posterior; BS = basal septal; MA = mid-anterior; MAS = mid antero-septal; ML = mid-lateral; MP = mid-posterior; MI = mid-inferior; MS = mid-septal.
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Figure 2 Last refilling frame from the dipyridamole real-time myocardial contrast echocardiography study (apical long-axis view) of a patient with >90% left circumflex coronary stenosis (left panel) and the corresponding single-photon emission computed tomography image (right panel).
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Figure 3 Time versus video-intensity curves obtained from the anteroseptal (solid circles) and posterior walls (open circles) of the patient whose images are shown in Figure 2. See text for details.
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Figure 4 Scatterplots showing the relationship between percent lumen diameter stenosis by quantitative coronary angiography and beta reserve by myocardial contrast echocardiography in individual vascular territories.
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Figure 5 Empirical receiver-operating characteristics curves generated for beta reserve (A) and A x beta reserve (B).
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