Table 1 Descriptive statistics of muscle parameters.

From: Development of an artificial intelligence powered software for automated analysis of skeletal muscle ultrasonography

 

RF mT (cm)

VI mT (cm)

QC mT (cm)

RF CSA (cm2)

RF EI (a.u.)

TA mT (cm)

TA CSA (cm2)

TA EI (a.u.)

Overall

Count

90

90

90

90

90

90

90

90

Mean

1.1

1.2

2.6

3.8

90.7

2.12

7.4

88.0

 ± SD

0.4

0.4

0.9

1.6

27.6

0.4

1.7

22.2

Healthy

Count

30

30

30

30

30

30

30

30

Mean

1.4

1.5

3.3

4.9

77.5

2.4

7.9

81.4

 ± SD

0.3

0.4

0.6

1.2

24.8

0.3

1.2

18.5

ICU

Count

30

30

30

30

30

60

60

60

Mean

0.9

1.0

2.0

2.5

100.8

2.1

7.1

91.3

 ± SD

0.4

0.3

0.8

1.2

28.0

0.5

1.8

23.2

Lung cancer

Count

30

30

30

30

30

   

Mean

1.1

1.1

2.4

3.9

93.8

   

 ± SD

0.4

0.3

0.7

1.4

25.2

   
  1. RF = rectus femoris, QC = quadriceps complex (rectus femoris + vastus intermedius), TA = tibialis anterior, mT = muscle thickness, CSA = anatomical cross-sectional area, EI = echo intensity, cm = centimeters, a.u. = arbitrary unit, SD = standard deviation.
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