Red cells production (erythropoeisis) sites in bone marrow of a normal subject.
Maximum intensity projection image after OSEM (left) and FBKP (right)
reconstructions at equivalent spatial resolution. Wholebody scan data were
acquired in 2D-mode (septa extended) on an ECAT Exact HR PET scanner after
injection of 3 mCi of 52-Fe.
Filtered backprojection images were reconstructed with a Hanning filter and an
isotropic spatial resolution of 8 mm. Sinograms corrected for attenuation and
scatter, were first smoothed with an isotropic gaussian filter with 8 mm (FWHM)
prior to reconstruction with OSEM and 4 iterations.
(by courtesy of M. Lonneux, F. Jamar and C. Michel, Positron Tomography
Laboratory, UCL Belgium)