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Figure 2 This graph demonstrates the percentage of agreement between myocardial contrast echocardiography and single-photon emission computed tomography (SPECT) perfusion scores, where segmental perfusion scores are available for both modalities. Rates of agreement for visual cine loop assessment (VIS), myocardial parametric quantification image assessment (MPQ), and VIS + MPQ were 83%, 89%, and 92%, and kappa values were 0.46, 0.58, and 0.68, respectively (white bars). Rates of agreement for the classification of a moderate to severe perfusion defect for VIS, MPQ, and VIS + MPQ were 92%, 97%, and 97%, and kappa values were 0.53, 0.76, and 0.81, respectively (black bars).