Skip to main content

Table 1 Systems, acquisition and reconstruction parameters applied in clinical whole-body oncologic 18F-FDG PET procedures

From: Phantom-based image quality assessment of clinical 18F-FDG protocols in digital PET/CT and comparison to conventional PMT-based PET/CT

 Philips VereosdSiemens VisiondSiemens mCTGE Discovery-MId,aGE Discovery 690
System parameters
 Axial ring extent (mm)164261221250153
 Energy window (keV)450–613435–585435–650425–650425–650
 TOF’s resolution (ps)316215540370544.3
 NEMA System sensitivity (kcps/MBq)5.616.49.6227.5
Acquistion parameters
 Acq. Time (min)1.522.52.51.5
 Admin. Activity (MBq/kg)2251.53.5
 Acq. Time (min) × A admin. (TAP in min × MBq/kg)3412.53.755.25
Reconstruction parameters
 Reconstruction methodsOSEM 3D TOF + PSFOSEM 3D TOF + PSFOSEM 3D TOF + PSFOSEM 3D TOF + PSFOSEM 3D TOF + PSF
 Iterations and subsets (it,ss)(3,15)/(2,10)(4,5)(3,21)(3,16)(3,16)
 Filtre Gauss FWHM (mm)0036,45
 Matrix size144 × 144/288 × 288440 × 440512 × 512256 × 256256 × 256
 Pixel size (mm)4 × 4/2 × 21.65 × 1.651.59 × 1.592.73 × 2.732.73 × 2.73
 Slice thickness (mm)4/2252.793.27
  1. aIn addition to OSEM, clinic FDG PET protocol for the GE Discovery MI also make use of the Q.Clear reconstruction algorithm (Q-param = 400)
  2. dDigital PET systems