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Table 4 Age-specific modal values of 9 key variables of interest

From: Pediatric reference values of anterior visual pathway structures measured with axis-correction on high-resolution 3D T2 fast spin echo sequences

Variable

Age group

 

0–3

4–6

n

mean

sd

95%-CI

n

mean

sd

95%-CI

Lens trans

12

8.41

0.39

7.65–9.18

14

8.76

0.27

8.24–9.29

Globe trans

13

21.61

0.86

20.84–22.38

16

22.58

0.83

22.05–23.10

Nerve retrobulbar

12

2.86

0.31

2.09–3.62

16

2.99

0.29

2.46–3.51

Nerve 3/3

11

2.16

0.16

1.40–2.93

17

2.46

0.29

1.94–2.99

Nerve prechiasmatic

13

3.51

0.42

2.75–4.28

17

3.75

0.28

3.23–4.28

Sheath retrobulbar

12

6.42

0.48

5.65–7.18

16

6.65

0.72

6.12–7.17

Sheath 3/3

12

3.98

0.61

3.21–4.74

17

4.19

0.64

3.67–4.72

Chiasm supinf lat

9

2.67

0.40

1.90–3.43

14

2.63

0.27

2.11–3.16

Chiasm trans

9

11.12

1.10

10.35–11.88

15

11.69

1.45

11.16–12.21

 

7–9

10–12

n

mean

sd

95%-CI

n

mean

sd

95%-CI

Lens trans

16

8.59

0.35

7.90–9.28

14

9.03

0.26

8.53–9.53

Globe trans

18

22.58

0.65

21.90–23.27

19

23.27

1.01

22.77–23.78

Nerve retrobulbar

16

3.14

0.31

2.45–3.82

13

3.19

0.27

2.69–3.69

Nerve 3/3

17

2.56

0.26

1.87–3.24

13

2.66

0.31

2.16–3.16

Nerve prechiasmatic

19

4.02

0.40

3.33–4.70

15

4.21

0.42

3.71–4.71

Sheath retrobulbar

16

6.60

0.98

5.91–7.28

13

6.81

0.70

6.30–7.31

Sheath 3/3

17

4.34

0.56

3.65–5.03

14

4.16

0.59

3.66–4.66

Chiasm supinf lat

16

2.77

0.31

2.08–3.45

12

2.99

0.34

2.49–3.49

Chiasm trans

17

11.83

1.09

11.14–12.52

13

12.85

1.36

12.35–13.35

 

13–15

16–18

n

mean

sd

95%-CI

n

mean

sd

95%-CI

Lens trans

22

8.98

0.37

8.25–9.71

34

9.20

0.33

8.56–9.84

Globe trans

27

23.41

0.70

22.68–24.15

47

23.88

1.08

23.24–24.52

Nerve retrobulbar

25

3.20

0.29

2.47–3.93

35

3.22

0.31

2.58–3.86

Nerve 3/3

24

2.60

0.19

1.86–3.33

41

2.69

0.40

2.05–3.33

Nerve prechiasmatic

24

4.22

0.42

3.49–4.95

46

4.36

0.42

3.72–5.00

Sheath retrobulbar

25

6.80

0.70

6.07–7.54

36

6.62

0.66

5.98–7.26

Sheath 3/3

24

4.39

0.51

3.66–5.12

40

4.47

0.49

3.83–5.11

Chiasm supinf lat

21

2.90

0.32

2.17–3.63

40

2.80

0.36

2.16–3.44

Chiasm trans

21

13.03

1.67

12.30–13.76

42

13.67

1.27

13.03–14.31

  1. The unit of measurement of all variables was millimeters (mm), with a measurement accuracy of 1 decimal. Reported numbers represent consensus scores, calculated as the mean across independent measurements taken by 2 readers, and for bilateral variables (i.e., all, except Chiasm trans), subsequently taking the inpatient mean of their left and right side. Note that in the supplementary Materials we provide an ‘interactive’ worksheet that allows users to calculate normative values for each of the 9 AVP structures themselves, for any given patient age or height, and taking the field strength of the MRI scanner into account (n Number of patients, sd Standard deviation, CI Confidence Interval)
  2. Abbreviations: trans Transverse, 3/3 Position 3 out of 3, supinf Superoinferior, lat Lateral
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BMC Pediatrics

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