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Table 4 Comparison with other PET/MRI systems

From: Performance evaluation of a PET insert for preclinical MRI in stand-alone PET and simultaneous PET–MRI modes

System MADPET4 [14] MR Solutions PET insert model I-802 [23] MR Solutions PET insert model I-402 (present study)
MRI (Tesla) 7 7 3
PET characteristics
 Energy window (keV)
 #energy threshold, time-over-threshold method
250# 250–750 250–750
 Internal ring diameter (mm) 88 116 60
 Axial FoV (mm) 20 103 98
 Maximum sensitivity (%) 0.7 7.9*/7.5** 10.15˫
 Tangential spatial resolution Centre FoV (mm) 1.29 1.69** 1.09˫
 Radial spatial resolution Centre FoV (mm) 1.29 1.74** 1.54˫
 Peak Mouse NECR (MBq) 29 34*/35** 17˫
 Peak Mouse NECR (kcps) 103 427*/300** 175˫
  1. *Without RF coil inside the MR bore
  2. **With RF coil inside the MR bore
  3. ˫Outside the MR bore