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Table 1 Ultrasonography of kidney and spleen of alpacas (animals ≥ 1 year, n = 96): Results of measurements of selected structures of the scanned organs

From: Ultrasonography of kidney and spleen in clinically healthy llamas and alpacas

Organ

n

Mean (cm)

Min (cm)

Max (cm)

SD

Left kidney—sagittal

 Width

60

4.19

2.77

6.40

0.69

 Length

61

7.39

5.61

11.00

0.82

 Cortex

30

1.05

0.77

2.46

0.30

 Medullary pyramids

30

0.80

0.52

1.61

0.21

Left kidney—transversal

 Width

26

4.98

3.89

6.48

0.65

 Cortex

10

0.91

0.64

1.41

0.22

 Medullary pyramids

10

0.76

0.50

1.13

0.21

Spleen—sagittal

 Width

20

2.38

1.76

3.32

0.42

 Right kidney—sagittalWidth

57

4.00

2.89

5.17

0.52

 Length

58

7.10

5.01

9.44

0.78

 Cortex

52

0.93

0.61

1.41

0.16

 Medullary pyramids

52

0.73

0.42

1.28

0.19

Right kidney—transversal

 Width

31

4.49

3.45

5.82

0.53

 Cortex

21

0.88

0.56

1.16

0.14

 Medullary pyramids

21

0.65

0.41

0.82

0.11

  1. n  number of animals, Min minimum, Max  maximum, SD standard deviation