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Table 3 Comparison of the studied ratios at various studied sites according to Sarnat staging

From: Magnetic resonance imaging and spectroscopy in evaluation of hypoxic ischemic encephalopathy in pediatric age group

 

HIE staging

One -Way ANOVA

  

Stage I

Stage II

Stage III

F

P value

P1

P2

P3

Basal ganglia

  

 lac/Cr ratio

Mean ± SD

0.19 ± .02

0.83 ± .42

2.79 ± .33

406.87

< 0.001*

0.003*

< 0.001*

< 0.001*

 NAA/Cr ratio

Mean ± SD

1.06 ± .01

0.84 ± .10

0.56 ± .04

975.09

< 0.001*

< 0.001*

< 0.001*

< 0.001*

 NAA/Cho ratio

Mean ± SD

0.39 ± .02

0.3 ± .05

0.17 ± .03

159.43

< 0.001*

< 0.001*

< 0.001*

< 0.001*

 Cho/Cr ratio

Mean ± SD

2.92 ± .34

2.94 ± .23

3.15 ± .26

2.77

0.101

Not applicable

Thalamus

         

 lac/Cr ratio

Mean ± SD

0.2 ± .04

0.92 ± .49

3.04 ± .50

223.76

< 0.001*

0.003*

< 0.001*

< 0.001*

 NAA/Cr ratio

Mean ± SD

1.07 ± .01

0.84 ± .11

0.56 ± .05

640.92

< 0.001*

< 0.001*

< 0.001*

< 0.001*

 NAA/Cho ratio

Mean ± SD

0.4 ± .01

0.28 ± .03

0.18 ± .02

351.74

< 0.001*

< 0.001*

< 0.001*

< 0.001*

 Cho/Cr ratio

Mean ± SD

2.88 ± .31

2.91 ± .23

3.15 ± .26

3.34

0.068

Not applicable

Frontal WM

         

 lac/Cr ratio

Mean ± SD

0.18 ± .03

0.97 ± .49

2.94 ± .38

358.51

< 0.001*

0.002*

< 0.001*

< 0.001*

 NAA/Cr ratio

Mean ± SD

1.10 ± .02

0.83 ± .17

0.57 ± .04

765.59

< 0.001*

0.002*

< 0.001*

0.002*

 NAA/Cho ratio

Mean ± SD

0.41 ± .01

0.31 ± .04

0.18 ± .03

228.16

< 0.001*

< 0.001*

< 0.001*

< 0.001*

 Cho/Cr ratio

Mean ± SD

2.87 ± .30

2.91 ± .22

3.08 ± .17

2.92

0.095

Not applicable

Occipital WM

         

 lac/Cr ratio

Mean ± SD

0.25 ± .09

0.9 ± .49

3.09 ± .45

249.05

< 0.001*

0.005*

< 0.001*

< 0.001*

 NAA/Cr ratio

Mean ± SD

1.11 ± .02

0.82 ± .09

0.46 ± .01

2871.11

< 0.001*

< 0.001*

< 0.001*

< 0.001*

 NAA/Cho ratio

Mean ± SD

0.4 ± .02

0.31 ± .02

0.17 ± .03

184.80

< 0.001*

< 0.001*

< 0.001*

< 0.001*

 Cho/Cr ratio

Mean ± SD

3.03 ± .29

3.04 ± .20

3.15 ± .26

.858

0.447

Not applicable

  1. *Significant at p < 0.05