Skip to main content

Table 1 PET/CT acquisition and reconstruction parameters for the three participating centres

From: EORTC PET response criteria are more influenced by reconstruction inconsistencies than PERCIST but both benefit from the EARL harmonization program

Site and system

 

Centre 1 biograph 6

Centre 2 biograph mCT

Centre 3 biograph 6

PET acquisition

Duration per bed position

2 min and 40 s (BMI ≤25) or 3 min and 40 s (BMI >25)

2 min and 00 s

2 min and 30 s (≤65 kg), 3 min (65–85 kg), 3 min and 30 s (85–100 kg), 4 min and 00 s (>100 kg)

PET reconstruction

Details

 

≤65 kg

65–100 kg

>100 kg

Reconstruction

OSEM3D

PSF

OSEM3D

PSF + TOF

OSEM3D

PSF

PSF

PSF

Iterations/subsets

4i 8s

3i 21s

2i 24s

2i 21s

4i 8s

3i 21s

3i 21s

3i 21s

Post-filter

5 mm

0 mm

4.4 mm

2 mm

3.5 mm

6 mm

5 mm

4 mm

Matrix

168 × 168

168 × 168

200 × 200

200 × 200

168 × 168

168 × 168

168 × 168

168 × 168

Pixel spacing

4.07 × 4.07

4.07 × 4.07

4.07 × 4.07

4.07 × 4.07

3.39 × 3.39

3.39 × 3.39

3.39 × 3.39

3.39 × 3.39

Slice thickness

5 mm

5 mm

2.027 mm

2.027 mm

3 mm

3 mm

3 mm

3 mm

EQ filter

0 mm

6.9 mm

0 mm

6.3 mm

0 mm

2.4 mm

3.9 mm

4.9 mm