Fig. 4

SPECT images reconstructed from data acquired with the NEMA acquisition protocol. Reconstruction was performed with 2i/10s (a and e), 4i/10s (b and f), 5i/15s (c and g) and 24i/10s (d and h). Scatter correction was performed with (a–d) SCF = 1.10 and (e–h) SCF = 0.41. a and e Reconstructed with postfiltering typically used in diagnostic imaging. All SPECT images have an identical window level and width