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The length of the large intestine in children determined by computed tomography scan

S Ali Mirjalili1, Gregory Tarr2, Mark D Stringer1,3

  • 1Department of Anatomy and Medical Imaging, University of Auckland, Auckland, New Zealand.

Clinical Anatomy (New York, N.Y.)
|June 21, 2017
PubMed

Insights

The length of a child's large intestine increases with age, reaching up to 95 cm by 9-11 years. These measurements are crucial for pediatric colonoscopy and surgery.

Area of Science:

  • Pediatric Anatomy
  • Medical Imaging
  • Gastroenterology

Background:

  • Limited data exists on normal pediatric large intestine length.
  • Accurate measurements are essential for endoscopic and surgical procedures in children.

Purpose of the Study:

  • To determine the length of the large intestine and its segments in New Zealand children.
  • To provide reference data for pediatric colonoscopy and surgery.

Main Methods:

  • Retrospective analysis of 112 deidentified pediatric abdominopelvic CT scans.
  • Scans were categorized into three age groups: 0-2, 4-6, and 9-11 years.
  • Measurements of total large bowel length and individual segments were taken.

Main Results:

  • Large bowel length increased from 52 cm (0-2 years) to 95 cm (9-11 years).
  • The transverse colon was consistently the longest segment (∼30%).
  • Proportional lengths of segments and sex-based differences were minimal; cecal location shifted with age.

Conclusions:

  • This study provides normative data for pediatric large intestine length.
  • The findings are valuable for planning and executing pediatric colonoscopy and surgical interventions.
  • Measurements showed consistent proportions across age groups, with cecal position varying by age.

Keywords:
coloncomputed tomographypediatric

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