Fig. 3

Box plots of (i) SNR, (ii) SBR and (iii) noise level values calculated from studies reconstructed using Q.Clear with various β and a 1.5 min/bp, b 1.0 min/bp and c 0.5 min/bp and GE OSEM (1.5 min/bp), normalized to the values obtained using the Hadassah OSEM reconstruction algorithm with 1.5 min/bp (left Y-axis). The upper and lower part of the box represent the upper and lower quartile, respectively. The line and the square in the box stand for the median and the mean values, respectively. The Bonferroni corrected p values for a given algorithm compared to Hadassah OSEM are shown in red circles (right Y-axis)