Spondyloarthritis & psoriatic arthritis
Self-reported diagnostic confidence predicts diagnostic accuracy in axial spondyloarthritis imaging
Authors' conclusion
Providing self-reported DC in radiological reports is useful information to predict diagnostic reliability in axSpA imaging.
Study context
- Population
- Patients with low back pain (axial spondyloarthritis (axSpA) and non-axSpA); sacroiliac joint images scored by nine blinded readers of different experience levels9 blinded readers
- Participants
- 163 patients
- Comparison
- Self-reported diagnostic confidence (DC) for correct vs incorrect responses, by imaging modality
- Primary endpoint
- Self-reported DC (scale 1, not sure, to 10, very sure) for correct vs incorrect responses using XR, computed tomography (CT), magnetic resonance imaging (MRI), XR+MRI and CT+MRI
Methodological detailsblinded readers, Mann-Whitney U test
- Blinded readers
- Mann-Whitney U test
Primary result
As reported in the abstract
Mean DC, XR
Correct
7.1
mean · SD 2.1
Incorrect
6.3
mean · SD 2.1
P < 0.001
Further findings
Mean
| Outcome | Correct | Incorrect | P value |
|---|---|---|---|
| Mean DC, CT | 8.3 (SD 1.8) | 6.7 (SD 2.0) | P < 0.001 |
| Mean DC, MRI | 8.1 (SD 1.9) | 6.2 (SD 1.9) | P < 0.001 |
| Mean DC, XR+MRI | 8.2 (SD 1.8) | 6.7 (SD 1.8) | P < 0.001 |
| Mean DC, CT+MRI | 8.4 (SD 1.8) | 6.8 (SD 1.8) | P < 0.001 |
DC by reader experience group
- Also higher for correct responses by experience group, except X-ray (XR) in the inexperienced group
Original publication
Self-reported diagnostic confidence predicts diagnostic accuracy in axial spondyloarthritis imaging. Rheumatology (Oxford). Published 26 October 2023. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →