Table 1

Scoring results

ULD-CTMRI
Synovitis (wrist, MCP and PIP)11 joints/3 joint groups per patient
 RAMRIS sum score5.1±6.26.8±5.0
 Positivity on joint group level44% (47/108)74% (80/108)
Tenosynovitis (flexor tendons)5 tendons/1 group per patient
 mRAMRIS sum score1.9±2.62.3±2.8
 Positivity on group level44% (16/36)55% (20/36)
Peritendonitis (extensor tendons)5 tendons/1 group per patient
 mRAMRIS sum score0.7±1.21.1±1.7
 Positivity on group level25% (9/36)33% (12/36)
Total21 locations/5 groups per patient
 mRAMRIS sum score7.5±9.6*9.9±8.7*
 Positivity on joint group level40%±49%62%±49%
 Positivity on patients’ level69%±47%100%
  • For synovitis (according to the RAMRIS score), tenosynovitis of the flexor tendons and peritendonitis of the extensor tendons, the sum scores are given as absolute numbers and SD. The share of positive findings (score >0) is listed in per cent of joint groups/patients.

  • *The total sum scores correlated with a Pearson’s r of 0.94.

  • MCP, metacarpophalangeal; PIP, proximal interphalangeal; ULD-CT, ultra-low-dose CT; mRAMRIS, modified Rheumatoid Arthritis MRI Score.