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. 2023 Dec;26(4):815-822.
doi: 10.1007/s40477-023-00800-9. Epub 2023 Jul 4.

Relevance of sonographic parameters for inflammatory bowel disease in children

Alessandra Dell'Era  1 , Rosanna Cannatelli  1 , Francesca Ferretti  1 , Cristina Manzotti  1 , Dario Dilillo  2 , Gianvincenzo Zuccotti  2 , Fabio Meneghin  2 , Sandro Ardizzone  1 , Giovanni Maconi  3
Affiliations

Relevance of sonographic parameters for inflammatory bowel disease in children

Alessandra Dell'Era et al. J Ultrasound. 2023 Dec.

Abstract

Purpose: Intestinal ultrasound (IUS) is widely used as the first exam in patients with suspected inflammatory bowel disease (IBD). This study investigated the accuracy of several IUS parameters, including increased bowel wall thickening (BWT), in detecting IBD in a paediatric population.

Methods: The study included an unselected series of 113 patients aged 2-18 years (mean age 10.8 years, 65 male), referred for recurrent abdominal pain or altered bowel habits, without known organic diseases, to perform an IUS as first investigation of a diagnostic workup. Patients with full systematic IUS examination, clinical and biochemical exams, and ileocolonoscopy or an uneventful follow-up at least one year follow up were eligible.

Results: 23 IBD patients (20.4%; 8 ulcerative colitis, 12 Crohn's disease and 3 indeterminate colitis) were diagnosed. We found that increased BWT > 3 mm (OR 5.4), altered IUS bowel pattern (IUS-BP, OR 9.8) and mesenteric hypertrophy (MH, OR 5.2) accurately identified IBD at the multivariate analysis. IUS-BP, MH and BWT > 3 mm had a sensitivity of 78.3%, 65.2% and 69.6% and a specificity of 93.3%, 92.2% and 96.7%, respectively. The combination of these three alterations increased the specificity up to 100%, whilst decreased sensitivity to 56.5%.

Conclusion: Among several US parameters suggestive of IBD, the increased BWT, MH and altered echopattern are independent predictors of IBD. The ultrasonographic diagnosis of IBD could be more accurate if relied on combination of different sonographic parameters, than on the sole BWT evaluation.

Keywords: Bowel wall thickness; Children; Fecal calprotectin; Inflammatory bowel diseases; Intestinal ultrasound; Ultrasound.

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Conflict of interest statement

All authors have no competing interests to disclose.

Figures

Fig. 1
Fig. 1
Longitudinal (left panel) and transversal (right panel) scans of small bowel showing a pathological bowel wall thickening (> 3 mm)
Fig. 2
Fig. 2
Longitudinal scan of the small bowel showing a pathological wall thickening (10 mm) with preserved stratification
Fig. 3
Fig. 3
Small reactive regional lymph nodes (L) with lesser diameter of 6–7 mm in the right lower quadrant
Fig. 4
Fig. 4
Mesenteric fat hypertrophy (MH) was defined as hyperechoic halo surrounding partly or circumferentially the bowel loops for an extension > 10 mm in a transversal scan
See this image and copyright information in PMC

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