Dear Hemy,

We have a 4-ring mCT and administer 3.5 MBq/kg up to 80 kg (280 MBq). We then maintain this maximum and increase bed time.

Voxels are 4mm x 4mm x 4mm and reconstruction is OSEM+TOF 2i21s and 5.0mm Gaussian filter.

Are recovery for max (10mm to 37mm) is 0.43, 0.60, 0.88, 0.89, 0.96, 0.96 and for mean (13mm to 37mm) is 0.41, 0.60, 0.64, 0.71 0.74.

For more details on image protocol see "The assessment of time-of-flight on image quality and quantification with reduced administered activity and scan times in 18F-FDG PET".

Hope this is helpful.

Best regards,

Ian