Spondyloarthritis & psoriatic arthritis
Sacroiliitis in inflammatory bowel disease on abdominal computed tomography: prevalence, misses, and associated factors
Authors' conclusion
Physicians should carefully evaluate SI joints on abdominal CT in patients with IBD to enable early detection of sacroiliitis, potentially leading to an early diagnosis of axSpA.
Study context
- Population
- Patients with inflammatory bowel disease (IBD) (mean age 31.1 years) who underwent abdominal computed tomography (CT)
- Participants
- 210 patients
- Exposure
- IBD patients with sacroiliitis vs without sacroiliitis
- With sacroiliitisn = 26
- Outcome
- Prevalence and missed-diagnosis rate of sacroiliitis on abdominal CT
Methodological detailsvalidated abdominal CT scoring tool, univariate and multivariate regression
- Validated abdominal CT scoring tool
- Univariate and multivariate regression
Main finding
As reported in the abstract
Sacroiliitis on abdominal CT
Prevalence of sacroiliitis: 26 of 210
12.4%
Recognized on primary reading: 5 of 26
19.2%
Missed on initial report: 21 of 26
80.8%
Observational data: associations, not effects.
Further findings
| Outcome | P value |
|---|---|
| Factors associated with sacroiliitisWith sacroiliitis vs Without sacroiliitis | P = 0.04 |
| Factors associated with sacroiliitisWith sacroiliitis vs Without sacroiliitis | P = 0.04 |
| Factors associated with sacroiliitisWith sacroiliitis vs Without sacroiliitis | P < 0.01 |
| Factors associated with sacroiliitisWith sacroiliitis vs Without sacroiliitis · multivariate analysis | P = 0.01 |
Final axial spondyloarthritis (axSpA) diagnosis among missed cases
- Diagnosed with axSpA: 20 of 21
- 95.2%
Original publication
Sacroiliitis in inflammatory bowel disease on abdominal computed tomography: prevalence, misses, and associated factors. Scand J Rheumatol. Published 30 April 2024. doi:10.
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