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EJNMMI Physics

Table 2 Information about measurements of the NEMA PET body phantom filled with 18F-FDG, 68Ga-HCl, or 64Cu-HCl

From: Comparison of image quality and spatial resolution between 18F, 68Ga, and 64Cu phantom measurements using a digital Biograph Vision PET/CT

Nuclide

Weight setup

Sphere background activity concentration ratio

Activity concentration in spheres (kBq/ml)

Activity concentration in background compartment (kBq/ml)

Total number of true events (× 106 counts)

Acquisition duration (s)

18F-FDG

Normal

4.0

18.21

4.51

70.8

357

Obese

4.0

15.55

3.85

45.0

419

Normal

9.7

51.97

5.35

72.4

291

Obese

9.7

43.59

4.48

45.0

347

68Ga-HCl

Normal

4.3

18.75

4.40

71.3

395

Obese

4.3

14.63

3.43

44.0

506

Normal

9.4

40.65

4.32

69.9

393

Obese

9.4

31.52

3.35

44.7

507

64Cu-HCl

Normal

5.4

27.70

5.12

72.2

1703

Obese

5.4

26.18

4.84

45.0

1801

Normal

8.1

42.16

5.19

71.6

1659

Obese

8.1

40.04

4.93

44.6

1747

  1. Activity concentration at the beginning of the acquisition and total number of detected true events throughout the duration of PET imaging
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