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Related Experiment Videos

Hydrocolonic sonography for evaluating inflammatory bowel disease.

C Bru1, M Sans, M M Defelitto

  • 1Ultrasonography Unit, Centre de Diagnòstic per la Imatge, Hospital Clínic, Villarroel 170, 08036 Barcelona, Spain.

AJR. American Journal of Roentgenology
|June 22, 2001
PubMed
Summary

Hydrocolonic sonography offers superior accuracy in assessing inflammatory bowel disease (IBD) extension and activity compared to leukocyte scintigraphy. This technique provides precise sonographic criteria for bowel involvement, establishing it as a primary diagnostic tool for IBD.

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Area of Science:

  • Gastroenterology
  • Diagnostic Imaging
  • Medical Technology

Background:

  • Inflammatory bowel disease (IBD) diagnosis and monitoring require accurate assessment of disease extension and activity.
  • Current imaging modalities have limitations in precisely defining bowel involvement in IBD.
  • Standardized sonographic criteria for IBD assessment are needed.

Purpose of the Study:

  • To compare the diagnostic utility of hydrocolonic sonography with technetium-99m hexamethylpropyleneamine oxime ((99m)Tc-HMPAO)-labeled leukocyte scintigraphy in patients with IBD.
  • To establish precise sonographic criteria for identifying bowel involvement in active IBD.
  • To evaluate the accuracy of hydrocolonic sonography in assessing IBD extension and activity.

Main Methods:

  • Prospective study of 68 consecutive patients with active IBD, 12 with inactive IBD, and 10 controls.

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  • Patients with active IBD underwent hydrocolonic sonography, scintigraphy, and colonoscopy within 72 hours.
  • Defined precise sonographic criteria for bowel involvement: mucosal thickness >1.5 mm, bowel wall thickness >4 mm, mucosal irregularity, or absent haustra.

    • Main Results:

    • Hydrocolonic sonography demonstrated 100% sensitivity in identifying active IBD involvement.
    • Sonography achieved 87% overall accuracy in assessing disease extension, outperforming scintigraphy (77%).
    • A strong correlation was observed between sonographic activity index and clinical/endoscopic activity indexes.

    Conclusions:

    • Precise sonographic criteria for bowel involvement in active IBD have been established.
    • Hydrocolonic sonography is more accurate than scintigraphy for assessing IBD extension and activity.
    • Hydrocolonic sonography should be considered a first-choice imaging technique for IBD following histological diagnosis.