ArticleJournal of the Canadian Association of Gastroenterology2026
Comparing the accuracy of computed tomography enterography to balloon-assisted enteroscopy in the evaluation of small bowel Crohn's disease.
Article in Journal of the Canadian Association of Gastroenterology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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16 authors.
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Abstract
Background: Evaluating small bowel Crohn's disease (SBCD) often relies on cross-sectional imaging (eg, computed tomography enterography [CTE]) and small bowel endoscopy (eg, balloon-assisted enteroscopy [BAE]). The accuracy of CTE for evaluating SBCD compared to BAE remains unclear and is assessed in this study. Methods: This single-centre retrospective study included patients with SBCD who underwent both CTE and BAE within 6 months. Findings of active inflammation, long-segment disease, skip-segments, and presence of both strictures and high-grade strictures (HGS) were extracted from CTE and BAE reports and analyzed using BAE as the reference standard. Results: Sixty-three CTE and BAE pairings were identified. CTE was sensitive for assessing active inflammation (80.0%) and all strictures (92.1%) and specific for long-segment inflammation (95.0%) and HGS (87.2%). Sensitivity was low for HGS (60.9%) and long-segment inflammation (50.0%), with poor specificity for all strictures (68.4%). In surgically naïve bowel, accuracy improved for active inflammation (sensitivity: 83.3%, specificity: 100%) and worsened for HGS (sensitivity: 42.9%, specificity: 84.2%). In postsurgical bowel, CTE sensitivity for HGS improved to 68.8%. Conclusion: Computed tomography enterography accurately detected active inflammation and fibrostenotic disease but may not be sufficient to rule out clinically significant findings such as HGS. The accuracy of CTE varied between surgically naïve and postsurgical bowel. CTE remains an important modality for evaluation of SBCD and should be used in combination with BAE when clinical discrepancy arises.
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