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Updated: Jul 8, 2025

Ultrasound Imaging of the Thoracic and Abdominal Aorta in Mice to Determine Aneurysm Dimensions

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Published on: March 8, 2019

Regional Arch Measurements Differ Between Imaging Modalities in Infants With Aortic Coarctation.

John Iguidbashian¹, LaDonna J Malone², Lorna P Browne²

¹Division of General Surgery, Department of Surgery, University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado.

The Annals of Thoracic Surgery

|December 10, 2023

Summary

This summary is machine-generated.

Transthoracic echocardiography (TTE) and computed tomography angiography (CTA) show significant differences in aortic arch measurements for infants with coarctation. Proximal arch measurements had the poorest correlation, impacting surgical decisions.

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Area of Science:

Pediatric Cardiology
Cardiovascular Imaging
Neonatal Surgery

Background:

Aortic arch measurements guide surgical decisions for neonatal coarctation repair.
Transthoracic echocardiography (TTE) and computed tomography angiography (CTA) are used for preoperative evaluation.

Purpose of the Study:

To compare aortic arch dimensions obtained by TTE and CTA in infants with coarctation.
To evaluate the accuracy of TTE and CTA in preoperative assessment for coarctation repair.

Main Methods:

Retrospective review of 72 infants with coarctation who underwent TTE and CTA from 2012-2022.
Comparison of aortic measurements at the ascending aorta, proximal arch, distal arch, and isthmus.

Main Results:

Significant discrepancies were found between TTE and CTA measurements, particularly in the proximal aortic arch (R² = 0.23) and isthmus (R² = 0.11).
Better correlation was observed in the ascending aorta (R² = 0.63) and distal aortic arch (R² = 0.54).

Conclusions:

Variability in TTE and CTA measurements, especially in the proximal arch, impacts surgical planning for neonatal coarctation.
These findings necessitate careful consideration in preoperative decision-making to reduce risks of residual or recurrent obstruction.