Table 1 Mean relative signal intensities of both groups (Mean Values ± SD)

RSI_A

NTB group

6.87 ± 0.24

4.72 ± 0.21

3.43 ± 0.23

1.40 ± 0.18

0.95 ± 0.16

ETB group

6.12 ± 0.24

3.11 ± 0.24

2.98 ± 0.27

2.09 ± 0.28

1.51 ± 0.15

t

7.731

17.603

4.554

−7.158

−9.023

P value

<.001

<.001

<.001

<.001

<.001

RSI_V

NTB group

2.53 ± 0.27

4.12 ± 0.29

3.57 ± 0.25

1.67 ± 0.20

1.01 ± 0.27

ETB group

1.83 ± 0.20

3.00 ± 0.28

2.82 ± 0.21

2.38 ± 0.24

1.93 ± 0.28

t

7.528

9.761

8.005

−8.020

−8.319

P value

<.001

<.001

<.001

<.001

<.001

RSI_S

NTB group

3.56 ± 0.48

2.89 ± 0.28

2.33 ± 0.23

1.17 ± 0.27

1.03 ± 0.29

ETB group

2.90 ± 0.35

2.46 ± 0.26

2.01 ± 0.30

1.77 ± 0.27

1.57 ± 0.34

t

4.003

3.965

2.976

−5.480

−4.207

P value

<.001

<.001

<.001

<.001

<.001

RSI_L

NTB group

1.94 ± 0.26

2.36 ± 0.38

2.99 ± 0.30

3.27 ± 0.31

3.56 ± 0.28

ETB group

1.01 ± 0.29

1.53 ± 0.27

1.56 ± 0.32

1.66 ± 0.29

1.78 ± 0.31

t

8.441

6.403

11.518

13.362

14.962

P value

<.001

<.001

<.001

<.001

<.001