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Table 1 Mean and standard deviation (SD) for the five parameters in all four groups are listed

From: Evaluating two respiratory correction methods for abdominal PET/MRI imaging

 

SUVmax (Lesions)

SUVmean (Lesions)

SUVmean (Background)

SD (Background)

SNR

Mean ± SD

     

aMethod 1

8.34 ± 3.02

4.81 ± 1.96

1.69 ± 0.35

0.28 ± 0.18

22.81 ± 15.28

bMethod 2

8.62 ± 3.23

4.98 ± 2.07

1.68 ± 0.34

0.37 ± 0.21

16.94 ± 11.07

cMethod 3

9.83 ± 3.67

5.73 ± 2.36

1.69 ± 0.33

0.37 ± 0.22

19.36 ± 12.03

dMethod 4

8.84 ± 3.30

5.11 ± 2.15

1.70 ± 0.34

0.35 ± 0.20

18.47 ± 13.43

Variance testing

     

F-value (p-value)

0.96 (0.42)

0.87 (0.46)

0.02 (0.99)

1.06 (0.37)

0.91 (0.44)

Difference percent (p-value)

     

2 vs 1

2.90% (0.22)

3.09% (0.25)

− 0.53% (0.41)

36.68% (0.00)

− 23.52% (0.00)

3 vs 1

18.15% (0.00)

19.70% (0.00)

0.46%(0.76)

36.98% (0.00)

− 11.30% (0.00)

4 vs 1

5.76% (0.03)

5.99% (0.04)

0.63%(0.55)

31.41% (0.00)

− 18.00% (0.00)

2 vs 4

− 2.28% (0.37)

− 2.35% (0.35)

− 1.01%(0.16)

4.53% (0.03)

− 5.93% (0.08)

3 vs 4

11.98% (0.00)

13.12% (0.00)

− 0.10%(0.78)

5.05% (0.03)

9.39% (0.30)

3 vs 2

15.41% (0.00)

17.54% (0.00)

1.04% (0.26)

0.64%(0.96)

19.18% (0.01)

  1. For obvious comparisons, the percent difference between pairs of groups was also calculated and shown
  2. p < 0.05 was considered a statistically significant difference between groups, which were shown in bold
  3. aThe reconstruction of full data without respiratory gating
  4. bThe reconstruction of end-expiratory respiratory gating
  5. cThe reconstruction of multi-bins respiratory gating
  6. dThe reconstruction of first 3 min and 2 s data without respiratory gating