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Table 4 Inter-rater reliability of 3D %fat in superior to inferior quartiles (Q1-Q4) in patients (N = 13) with rotator cuff pathology

From: Development of 3D method to assess intramuscular spatial distribution of fat infiltration in patients with rotator cuff tear: reliability and concurrent validity

 

Inter-rater Reliability

 

3D %Fat

Rotator Cuff Muscle

Absolute

Relative

Intramuscular region

ICC

95% CI

Mean

SEM

MDC

Supraspinatus (whole)

 Q1

0.980

0.936, 0.994

13.26

1.09

1.54

 Q2

0.978

0.879, 0.994

12.27

1.05

1.48

 Q3

0.982

0.881, 0.995

12.12

0.98

1.39

 Q4

0.926

0.300, 0.983

12.03

1.73

2.45

Infra/Teres (whole)

 Q1

0.996

0.986, 0.999

10.09

0.40

0.57

 Q2

0.997

0.989, 0.999

11.18

0.42

0.59

 Q3

0.984

0.946, 0.995

11.85

0.90

1.28

 Q4

0.963

0.469, 0.992

9.87

1.13

1.60

Subscapularis (whole)

 Q1

0.991

0.971, 0.997

11.84

0.51

0.72

 Q2

0.996

0.983, 0.999

13.25

0.54

0.76

 Q3

0.996

0.986, 0.999

13.38

0.61

0.86

 Q4

0.997

0.991, 0.999

14.89

0.58

0.82

  1. ICC intraclass correlation coefficient, 95% CI 95% confidence interval, SEM standard error of the measure; MDC, minimal detectable change
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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