Filters in 2D and 3D Cardiac SPECT Image Processing
Figure 5
Comparison of vertical, horizontal, and short axis slices of a stress perfusion imaging study reconstructed by FBP (a) and by OSEM (b) algorithm, using the Butterworth filter (cutoff frequency: 0.3 cm−1 and power 10) as a processing filter. Data acquired by GE Starcam 4000 and reconstructed in Radiation Physics Unit, University Aretaieion Hospital, Athens, Greece, 2013.
