Table 8. Sensitivity, Specificity, Positive Predictive Value, Negative Predictive Value, and Accuracy of the Grading of Fatty Infiltration in the Rotator Cuff Muscles by Using Dichotomous Scales.
| Muscle | Sensitivity (%) | Specificity (%) | Positive predictive value (%) | Negative predictive value (%) | Accuracy (%) |
|---|---|---|---|---|---|
| Supraspinatus (long axis) | |||||
| Echogenicity | 47 | 96 | 64 | 92 | 89 |
| Architecture | 73 | 95 | 69 | 96 | 92 |
| Supraspinatus (short axis) | |||||
| Echogenicity | 53 | 95 | 62 | 93 | 89 |
| Architecture | 73 | 94 | 65 | 96 | 91 |
| Infraspinatus (long axis) | |||||
| Echogenicity | 63 | 96 | 56 | 97 | 94 |
| Architecture | 63 | 98 | 71 | 97 | 95 |
| Infraspinatus (short axis) | |||||
| Echogenicity | 50 | 97 | 57 | 96 | 94 |
| Architecture | 75 | 97 | 67 | 98 | 95 |