Ultrastructural elements utilized in selected entheseal scoring systems.
| Entheseal Morphology | GUESS | MASEI | SEI | Spanish School | “Sono” MASES | D’Agostino |
|---|---|---|---|---|---|---|
| Peritendinous fluid | + | |||||
| Tendon structure | + | + | + | + | + | |
| Tendon thickness | + | + | + | + | + | |
| Adjacent bursitis | + | + | + | + | + | + |
| Adjacent periosteal changes, including bone erosions | + | + | + | + | + | + |
| Enthesis calcification | + | + | + | + | + | + |
| Tendon tear/loss of tendon thickness | + | |||||
| Enthesis Doppler | + | + | + | + | + |
GUESS: Glasgow Ultrasound Enthesitis Scoring System27; MASEI: Madrid Sonographic Enthesitis Index28; SEI: Sonographic Enthesitis Index26; Spanish School31; “Sono” MASES: Maastricht Ankylosing Spondylitis Entheses Score29, 30; D’Agostino, et al32.