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EJNMMI Physics

Table 2 Spatial resolution performance

From: From a PMT-based to a SiPM-based PET system: a study to define matched acquisition/reconstruction parameters and NEMA performance of the Biograph Vision 450

Parameter

   

Spatial resolution

Position (cm)

FWHM (mm)

FWTM (mm)

Radial

1

3.5

6.7

 

10

4.5

8.2

 

20

5.8

10.0

Tangential

1

3.8

7.5

 

10

4.0

7.4

 

20

3.6

6.7

Axial

1

3.5

6.9

 

10

4.2

8.3

 

20

4.2

8.9

  1. Source: Na22 source, 0.25-mm diameter
  2. Reconstruction: Fourier rebinning combined with a filtered back projection without attenuation, scatter corrections ,and no post-filtering. The voxel size was 0.83 × 0.83 × 0.83 mm3 (matrix size 880 × 880 × 237)
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