| Measurement method | |
|---|---|
| AP thickness | Widest portion of the capsule, which was at the mid-portion of the humeral head, measured with a digital caliper on oblique coronal T2-weighted images |
| CHL thickness | Widest portion of CHL at the level of the tip of the coracoid process measured with a digital caliper on oblique sagittal T2-weighted images |
| RI obliteration | Graded on oblique sagittal T2-weighted images None: absence of fat obliteration Partial: partially disrupted fat signal Complete: totally obliterated fat signal |
| AP enhancement | Graded on oblique coronal contrast-enhanced T1-weighted fat-suppressed images None: no enhancement Mild: insufficient enhancement or sufficient enhancement involving less than 1/3rd of the capsule hemicircumference Moderate: sufficient enhancement involving less than 2/3rd of the capsule hemicircumference Severe: sufficient or strong enhancement involving over 2/3 of the capsule hemicircumference |
| RI enhancement | Graded on oblique sagittal contrast-enhanced T1-weighted fat-suppressed images None: no enhancement Partial: insufficient enhancement or partial sufficient enhancement Complete: total sufficient enhancement |