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Figure 1 Perfusion analysis. (a) Four (of 50) images per slice showing the first pass of the contrast through the heart (picture 1 = baseline image; picture 2 = contrast in the right ventricle; picture 3 = contrast in the left ventricle; picture 4 = contrast in the myocardium). (b) Manual endomyocardial and epimyocardial contour delineation, an automated algorithm matches the contours to the remaining images of the slice. (c) Signal intensity (SI) curves of the contrast media through the left ventricle (LVin), the endomyocardium (endo) and epimyocardium (epi). Model-constrained deconvolution was used to calculate the maximum amplitude of the impulse response function from the SI curves (12).
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