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Table 2 Spatial resolution at 1/4 axial offset from the centre of the AFoV and spatial resolution at the centre of the FoV

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

Offset (mm) Tangential (inside the MRI) Tangential (outside the MRI) Radial (i) Radial (o) Axial (i) Axial (o)
*FWHM (mm) at 1/4 AFoV
 0 1.06 1.43 1.1 1.32 1.14 1.03
 5 1.21 1.58 1.15 1.31 1.25 1.22
 10 1.29 1.26 1.46 1.3 1.55 1.11
 15 1.36 1.43 1.46 1.43 1.4 1.2
**FWTM (mm) at 1/4 AFoV
 0 2.36 2.77 3.28 3.11 2.55 2.39
 5 2.05 2.55 4.43 3.05 2.48 2.62
 10 2.78 2.85 3.43 4.37 2.73 2.77
 15 2.88 5.19 3.93 4.93 3.09 2.85
FWHM (mm) at the centre of AFoV
 0 1.46 1.09 1.71 1.54 1.61 1.99
 5 1.26 1.59 1.19 1.21 2.52 2.39
 10 1.61 1.28 1.53 1.51 2.28 1.99
 15 1.32 1.65 1.29 2.04 1.47 2.28
FWTM (mm) at the centre of AFoV
 0 2.81 2.02 4.65 3.51 3.69 3.49
 5 2.64 3.39 2.22 4.02 3.51 3.99
 10 3.7 2.56 2.59 3.75 3.95 2.96
 15 3.03 2.84 3.17 4.16 3.73 3.56
  1. *FWHM: full width at half maximum
  2. **FWTM: full width at one tenth of the maximum