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EJNMMI Physics

Table 3 Comparisons of objective measurements on lesions between the HIR and AIIR reconstruction

From: Ultra-low-dose CT reconstructed with the artificial intelligence iterative reconstruction algorithm (AIIR) in 18F-FDG total-body PET/CT examination: a preliminary study

Index

HIR

AIIR

Change rate (%)

P value

Lesions

CTmean

35.08 ± 14.07

41.55 ± 19.33

25.87

0.523

CTsd

14.61 ± 6.04

11.63 ± 5.18

−12.09

0.028

SUVmax

6.08 ± 3.50

6.06 ± 3.49

−0.27

1

SUVmean

5.38 ± 3.05

5.38 ± 3.07

−0.15

1

SUVsd

0.55 ± 0.44

0.55 ± 0.44

−0.82

1

TBR

2.53 ± 1.60

2.54 ± 1.60

0.26

1

SNR

2.79 ± 1.41

4.30 ± 2.52

71.91

0.003

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