Fig. 7

Some of the filtered reconstructed images of the NEMA phantom filled with 88–100 kBq/ml ²¹²Pb for all the imaging protocols, but the maximum counts illustrated as white differs and is given in the top right corner of each image. Reconstructions 15 × 1, 30 × 4, and 30 × 30 were chosen as examples to illustrate the change with reconstruction updates