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Updated: Jun 16, 2025

Murine Endoscopy for In Vivo Multimodal Imaging of Carcinogenesis and Assessment of Intestinal Wound Healing and Inflammation
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Intestinal Ultrasound and Its Advanced Modalities in Characterizing Strictures in Crohn's Disease.

F de Voogd1, K J Beek2, M Pruijt1

  • 1Department of Gastroenterology and Hepatology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands; Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, The Netherlands.

Clinical Gastroenterology and Hepatology : the Official Clinical Practice Journal of the American Gastroenterological Association
|June 14, 2025
PubMed
Summary
This summary is machine-generated.

Intestinal ultrasound (IUS) accurately characterizes Crohn's disease (CD) strictures. The new Stricture Score Amsterdam (SSA) helps differentiate inflammatory from chronic strictures, aiding treatment decisions.

Keywords:
ComplicationsFibrosisImagingInflammatory Bowel DiseaseScoring index

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Area of Science:

  • Gastroenterology
  • Medical Imaging
  • Surgical Pathology

Background:

  • Crohn's disease (CD) strictures present diverse inflammatory and chronic characteristics.
  • Accurate characterization of stricture composition is crucial for effective treatment planning.

Purpose of the Study:

  • To evaluate the accuracy of intestinal ultrasound (IUS) in differentiating inflammatory and chronic strictures in CD patients.
  • To develop and validate a novel scoring system for stricture characterization.

Main Methods:

  • Prospective, cross-sectional study involving 36 CD patients undergoing small bowel resection.
  • Intestinal ultrasound (IUS) and contrast-enhanced ultrasound (CEUS) were performed prior to surgery.
  • Histological analysis of resected tissue was correlated with IUS/CEUS findings.

Main Results:

  • The Stricture Score Amsterdam (SSA) demonstrated high accuracy in differentiating inflammatory (AUROC: 0.88) and chronic (AUROC: 0.90) strictures.
  • Key differentiating features included loss of wall layer stratification, bowel wall thickness, and contrast-enhanced ultrasound parameters.
  • Good inter-observer agreement (ICC: 0.73) was achieved for the SSA.

Conclusions:

  • A combination of IUS and CEUS, integrated into the SSA, accurately differentiates inflammatory from chronic CD strictures.
  • The SSA shows potential as a diagnostic aid for selecting appropriate surgical or medical treatments for CD strictures.
  • External validation of the SSA is recommended to confirm its clinical utility.