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Effective diameter of the abdominal aorta in children

Burhan Beger1, Barış Ten2

  • 1Faculty of Medicine, Department of Pediatric Surgery, Van Yüzüncü Yıl University, Van, Turkey.

Surgical and Radiologic Anatomy : SRA
|May 17, 2024
PubMed

Insights

This study established normal abdominal aorta (AA) diameter ranges in children aged 1-18 years, aiding in diagnosing vascular diseases like aortic aneurysms. Age-specific ratios were found to be useful for clinical practice.

Area of Science:

  • Pediatric Radiology
  • Vascular Imaging
  • Biometry

Background:

  • Aortic aneurysm and hypoplasia diagnosis relies on standard aortic diameter measurements.
  • Limited pediatric data exists for normal abdominal aorta (AA) diameter, hindering accurate diagnosis in children.
  • Establishing age-specific reference values is crucial for pediatric vascular disease assessment.

Purpose of the Study:

  • To determine age-related changes in the effective diameter of the abdominal aorta (AA) in healthy children aged 1-18 years.
  • To provide reference data for diagnosing vascular diseases in pediatric populations.
  • To assess diameters of the common iliac artery (CIA), external iliac artery (EIA), and first lumbar vertebra (L1) in relation to AA diameter.

Main Methods:

  • Retrospective analysis of abdominopelvic CT scans from 180 healthy children (90 males, 90 females; age 1-18 years).
  • Measurement of diameters of the abdominal aorta (AA), common iliac artery (CIA), external iliac artery (EIA), and first lumbar vertebra (L1).
  • Comparison of vessel and vertebra diameters and their ratios across different age groups and between sexes.

Main Results:

  • Vessel and L1 diameters increased significantly with age (1-18 years) in children (p < 0.001).
  • Males generally had larger diameters than females, with exceptions for AA diameters over the celiac trunk and renal artery.
  • Ratios of vessel diameters to L1 increased with age, with some ratios stabilizing after late childhood.

Conclusions:

  • Age-specific diameter ratios for the abdominal aorta and iliac arteries in children are established.
  • These ratios can assist surgeons and radiologists in diagnosing pediatric vascular disorders, including aortic aneurysms.
  • The findings provide valuable reference data for pediatric vascular imaging and assessment.
Abstract

Keywords:
Abdominal aortaCommon iliac arteryComputed tomographyEffective diameterExternal iliac artery

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