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Validation of US as a first-line diagnostic test for assessment of pediatric ileocolic intussusception

Anastasia L Hryhorczuk1, Peter J Strouse

  • 1Department of Radiology, University of Michigan Health System, Ann Arbor, MI 48109, USA. ahryhorc@med.umich.edu

Pediatric Radiology
|August 7, 2009
PubMed

Insights

Ultrasound (US) is a highly sensitive and specific tool for diagnosing pediatric ileocolic intussusception. This study confirms its value as a primary diagnostic method, showing high accuracy in identifying this condition.

Area of Science:

  • Pediatric Radiology
  • Gastrointestinal Imaging
  • Diagnostic Ultrasound

Background:

  • Ultrasound (US) has been a potential primary diagnostic tool for ileocolic intussusception since the early 1980s.
  • Our institution has consistently employed US for ileocolic intussusception assessments since 2001.

Purpose of the Study:

  • To evaluate the efficacy of ultrasound (US) as a primary diagnostic test for intussusception.
  • To analyze a 7-year institutional experience with US for intussusception diagnosis.

Main Methods:

  • A retrospective review of 814 US examinations for intussusception in children aged 10 years and younger.
  • Classification of cases as true-positive, true-negative, false-positive, or false-negative based on clinical records and radiological reports.

Main Results:

  • Overall sensitivity of US was 97.9% and specificity was 97.8%.
  • Positive predictive value was 86.6%, and negative predictive value was 99.7%.
  • Less than 1% of US studies were nondiagnostic.

Conclusions:

  • Ultrasound (US) demonstrates high sensitivity and specificity for detecting ileocolic intussusception.
  • US should be considered the first-line imaging modality for evaluating suspected pediatric intussusception.
Abstract

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