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a Cardiac phantom with TD 2 for 20, 40 and 80 iterations, 80 iterations post-filtered with a Butterworth filter and an FDG PET scan. The images were interpolated with B-splines and shown for the same intensity window. Line profiles for the b coronal and c sagittal planes. The black lines show the placement of the right ventricular wall (leftmost) and the left ventricular walls (two to the right). FDG = fluoro-deoxyglucose, other abbreviations as in Figs. 2, 3, 4, 5 and 6
