Table 4 Validity measures and accuracy for both qualitative & quantitative assessments
AUC (95%CI) | P value | Cut-off | Sensitivity (95%CI) | Specificity (95%CI) | |
|---|---|---|---|---|---|
Quantitative assessment | |||||
Anterior capsule thickness | 1.0 (0.936–1.0) | 0.000 | > 2.45 | 100 (87.7–100) | 100 (87.7–100) |
Maximal axillary capsule thickness | 0.855 (0.735–0.934) | 0.000 | > 3.5 | 75 (55.1–89.3) | 100 (87.7–100) |
Humeral capsular thickness | 0.793 (0.663–0.889) | 0.000 | > 2.92 | 60.7 (40.6–78.5) | 100 (87.7–100) |
Glenoid capsular thickness | 0.823 (0.698–0.912) | 0.000 | > 3.47 | 67.9 (47.6–84.1) | 100 (87.7–100) |
Coracohumeral ligament thickness | 0.817 (0.691–0.908) | 0.000 | > 2.54 | 71.4 (51.3 – 86.8) | 67.9 (47.6—84.1) |
Degree of external rotation | 0.949 (0.855–0.990) | 0.000 | ≤ 136.2 | 85.7 (67.3—96.0) | 100 (87.7–100) |
Qualitative assessment | |||||
Anterior capsular abnormal hyperintensity | 0.661 (0.522—0.782) | 0.011 | 75 (55.1—89.3) | 57.1 (37.2—75.5) | |
Axillary capsular abnormal hyperintensity | 0.768 (0.636—0.870) | 0.000 | 75 (55.1—89.3) | 78.6 (59.1—91.7) | |
Humeral capsular abnormal hyperintensity | 0.607 (0.468—0.735) | 0.106 | 64.3 (44.1—81.4) | 57.1 (37.2—75.5) | |
Glenoid capsular abnormal hyperintensity | 0.732 (0.597—0.842) | 0.000 | 57.1 (37.2—75.5) | 89.3 (71.8—97.7) | |
Abnormal hyperintensity at subcoracoid fat triangle | 0.589 (0.450—0.719) | 0.175 | 67.9 (47.7—84.1) | 50 (30.7—69.4) | |
Obliteration of the subcoracoid fat triangle | 0.554 (0.415—0.687) | 0.371 | 32.1 (15.9—52.4) | 78.6 (59.1—91.7) | |