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Diagnostic performance of ultrasound without any colon preparation for detecting colorectal polyps in pediatric

Takahiro Hosokawa1, Mayumi Hosokawa2, Yutaka Tanami3

  • 1Department of Radiology, Saitama Children's Medical Center, 1-2 Shintoshin Chuo-ku Saitama, Saitama, 330-8777, Japan. snowglobe@infoseek.jp.

Pediatric Radiology
|July 15, 2019
PubMed

Insights

Ultrasound shows 89% accuracy for detecting colorectal polyps in children, with smaller or rectal polyps causing false negatives. This non-invasive method aids in pediatric polyp diagnosis.

Area of Science:

  • Pediatric Gastroenterology
  • Diagnostic Imaging
  • Colorectal Health

Background:

  • Limited data exists on ultrasound's effectiveness for detecting colorectal polyps in pediatric patients.
  • Accurate non-invasive diagnostic tools are needed for pediatric colorectal conditions.

Purpose of the Study:

  • To assess the diagnostic accuracy of ultrasound for detecting colorectal polyps in children without colon preparation.
  • To identify factors contributing to false-negative ultrasound results in pediatric polyp detection.

Main Methods:

  • A cohort of 74 children with symptoms like rectal bleeding or abdominal pain underwent both ultrasound and colonoscopy.
  • Ultrasound's diagnostic performance was evaluated against colonoscopy, the reference standard.
  • Statistical analyses included Fisher exact and Student's t-tests.

Main Results:

  • Ultrasound demonstrated an overall accuracy of 89% (95% CI, 80-95%) for detecting colorectal polyps.
  • Sensitivity was 47% and specificity was 100%.
  • False-negative results were associated with smaller polyp volumes and polyps located in the rectum.

Conclusions:

  • Ultrasound is an accurate tool for detecting colorectal polyps in pediatric patients, achieving 89% accuracy.
  • Smaller polyps and those in the rectum are more likely to be missed by ultrasound, leading to false negatives.
Abstract

Keywords:
ChildrenColonColonoscopyJuvenile polypScreeningSonographyUltrasound

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