The example images requested for the EULAR–OMERACT rheumatoid arthritis MRI reference image atlas and the allocated collection centres
| Selection | Synovitis | Bone oedema | Bone erosion | |||
|---|---|---|---|---|---|---|
| MCP joint | Wrist | MCP joint | Wrist | MCP joint | Wrist | |
| *In total, 1002 images were included in the atlas.6–8 The origin of the images was as follows: Copenhagen, 48%; Leeds, 45%; Auckland, 4.4%; Oslo, 2.2%; and Sydney, 0.5%. | ||||||
| MCP, metacarpophalangeal; CMC, carpometacarpal; STIR, short tau inversion recovery. | ||||||
| Areas | Second or third | Distal radioulnar | Metacarpal head | Radius | Metacarpal head | Radius |
| Radiocarpal | Phalangeal base | Scaphoid | Phalangeal base | Scaphoid | ||
| Intercarpal-CMC | Lunate | Lunate | ||||
| Capitate | Capitate | |||||
| Third metacarpal base | Second or third metacarpal base | |||||
| Grades | All (0–3) | All (0–3) | Grade 0–3 + examples of higher grades | |||
| MRI sequences | ||||||
| For scoring | Axial precontrast and postcontrast T1 weighted | Coronal T2 weighted fat saturated or STIR | Coronal T1 weighted | |||
| Additional | Coronal precontrast and postcontrast T1 weighted | – | Axial T1 weighted (to confirm cortical break) | |||
| Centre allocation (primary/secondary) | Leeds/Sydney | Copenhagen/Sydney | Leeds/Sydney | Auckland/Copenhagen | Leeds/Sydney | Copenhagen/Auckland |
| Origin of final atlas images* | Leeds | Copenhagen, Oslo | Leeds | Copenhagen, Leeds, Oslo | Leeds, Sydney | Copenhagen, Auckland |