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Table 1 Design and performance specifications of the GE Discovery MI commercial system

From: Noise reduction using a Bayesian penalized-likelihood reconstruction algorithm on a time-of-flight PET-CT scanner

GE Discovery MI

Three detector rings

Axial FOV

15 cm

Patient bore size

70 cm

Photodetector

SiPM

Scintillator

LBSa (LYSO)

Crystal element size

3.95 × 5.3 × 25 mm3

Coincidence timing window

4.9 ns

Sensitivity

7.5 cps/kBq

Spatial resolution (FWHM mm)

Radial/tangential/axial

@1 cm

4.69/4.08/4.68

@10 cm

5.58/4.64/5.83

@20 cm

7.53/5.08/5.47

Scatter fraction

41.7%

Peak NECR

102.3 kcps @ 24.7 kBq/ml

Clinical NECR

29.6 kcps @ 2.4 kBq/ml

  1. aLutetium-based scintillator