Rheumatoid arthritis

Deep learning enables automatic detection of joint damage progression in rheumatoid arthritis—model development and external validation

Rheumatology (Oxford)Published Diagnostic accuracy study

Authors' conclusion

AuRA had the best external validation performance and demonstrated potential for detecting longitudinal changes in joint damage.

Study context

Population
Hand and foot radiographs of patients with RA; training data from two previous clinical studies, external validation data from Turku University Hospitalexternal validation cohort
Participants
205 participants
Comparison
AuRA vs two top-performing RA2-DREAM algorithms
Outcome
Agreement with expert-assessed Sharp-van der Heijde total scores (RMSE) in the external validation cohort
Methodological detailsmodel development, external validation, Training data n = 367 from two previous clinical studies
  • Model development
  • External validation
  • Training data n = 367 from two previous clinical studies

Performance

As reported in the abstract

RMSE vs expert-assessed scores, external validation cohort
Test or modelValueRoot mean square error (RMSE)
AuRA23.623.6
RA2-DREAM solutions35.0

Value

AuRA23.6
RA2-DREAM solutions— not stated in the abstract

Root mean square error (RMSE)

AuRA23.6
RA2-DREAM solutions35.0

Further findings

Correlation of AuRA-predicted longitudinal changes with changes in expert-assessed scores (54 patients, average interval 4.6 years)

Pearson's R
0.74
P
P < 0.001

Original publication

Deep learning enables automatic detection of joint damage progression in rheumatoid arthritis—model development and external validation. Rheumatology (Oxford). Published 10 April 2024. doi:10.1093/rheumatology/keae215

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