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Images of Simulated SPECT Jaszczak Deluxe phantom acquisition, consisting of 148 rods and six hot spheres with different diameters (9.5, 12.7, 15.9, 19.1, 25.4, and 31.8 mm) filled with 10mCi 99mTc. The acquisition parameters were 128 × 128 matrix, 128 views, 1.23 zoom factor, 3.9-mm pixel size, approximately one million counts per view, 128 million total counts. Images reconstructed by filtered back projection reconstruction using a Butterworth filter with a cut-off frequency of 0.5
