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Figure 3 Segmental refill curves (solid circles) and corresponding left ventricular signal intensities (solid triangles) reconstructed from a myocardial contrast echocardiography (MCE) perfusion sequence at rest. Upper and lower dashed lines = A_LV and A; dotted lines = ± 1 SD of A_LV; solid lines = the fitting to y(t) = a·(1 – e^–ß·t) + c with the myocardial plateau intensity A = a + c. Segmental data of ß, relative blood volume (rBV), and myocardial blood flow (MBF) are given in s^–1, ml·ml^–1, and ml·min^–1·g^–1, respectively. For the calculation of MBF_MCE, ß data were transformed into min^–1. PET = positron emission tomography.