Table 1.
Intra-rater reliability of 3D %fat in superior to inferior quartile (Q1-Q4) regions in patients (N = 13) with rotator cuff pathology
| Intra-rater Reliability | |||||
|---|---|---|---|---|---|
| 3D %Fat | |||||
| Rotator Cuff Muscle | Absolute | Relative | |||
| Intramuscular region | ICC | 95% CI | Mean | SEM | MDC |
| Supraspinatus (whole) | |||||
| Q1 | 0.960 | 0.872, 0.988 | 13.85 | 1.74 | 2.46 |
| Q2 | 0.991 | 0.971, 0.997 | 12.85 | 0.73 | 1.04 |
| Q3 | 0.988 | 0.961, 0.996 | 12.43 | 0.85 | 1.20 |
| Q4 | 0.927 | 0.770, 0.977 | 14.19 | 2.38 | 3.36 |
| Infra/Teres (whole) | |||||
| Q1 | 0.993 | 0.977, 0.998 | 10.38 | 0.55 | 0.78 |
| Q2 | 0.994 | 0.981, 0.998 | 11.42 | 0.61 | 0.86 |
| Q3 | 0.984 | 0.948, 0.995 | 12.50 | 0.96 | 1.36 |
| Q4 | 0.945 | 0.821, 0.983 | 10.96 | 1.54 | 2.18 |
| Subscapularis (whole) | |||||
| Q1 | 0.782 | 0.280, 0.934 | 13.04 | 2.95 | 4.17 |
| Q2 | 0.996 | 0.987, 0.999 | 13.77 | 0.54 | 0.77 |
| Q3 | 0.998 | 0.994, 0.999 | 13.77 | 0.44 | 0.64 |
| Q4 | 0.995 | 0.963, 0.999 | 15.35 | 0.75 | 1.06 |
ICC intraclass correlation coefficient, 95% CI, 95% confidence interval, SEM standard error of the measure, MDC minimal detectable change