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Updated: Jul 4, 2026

Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging
09:32

Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging

Published on: December 9, 2021

Simultaneous sizing and preoperative risk stratification for thoracic endovascular aneurysm repair: role of gated

Felix J V Schlösser1, Hamid R Mojibian, Alan Dardik

  • 1Section of Vascular Surgery, Yale University, New Haven, Connecticut 06510, USA.

Journal of Vascular Surgery
|July 1, 2008
PubMed

Insights

Electrocardiogram-gated CT angiography enables simultaneous assessment of thoracic aortic aneurysms and cardiac structures. This technique provides diagnostic image quality for both thoracic aorta pathology and coronary artery disease.

Area of Science:

  • Cardiovascular Imaging
  • Thoracic Radiology

Background:

  • Thoracic aortic aneurysms (TAA) share risk factors with other cardiovascular diseases.
  • Coronary artery disease (CAD) is highly prevalent in TAA patients (30-70%).
  • Assessing cardiac pathology preoperatively minimizes risk and improves patient selection.

Purpose of the Study:

  • To investigate the feasibility of simultaneously assessing thoracic aortic pathology and cardiac structures using ECG-gated 64-slice CT angiography.
  • To evaluate the capability of this technique in visualizing coronary arteries, cardiac function, and valve characteristics.

Main Methods:

  • Review of ECG-gated 64-detector row CT scans from 11 patients with thoracic aortic pathology.
  • Assessment of images for coronary artery disease, calcifications, cardiac function, and valve characteristics.
  • Simultaneous measurement of thoracic aortic pathology using the same CT scan.

Main Results:

  • Successful assessment of all images for calcium scores, coronary artery stenoses, and anomalies.
  • Diagnostic image quality achieved for cardiac function, valve anatomy, and thoracic aortic disease.
  • Comprehensive evaluation of interventricular septal wall thickness, myocardial scar, ejection fraction, and muscle mass.

Conclusions:

  • ECG-gated CT angiography allows dynamic imaging of the thoracic aorta and cardiac structures in a single scan.
  • This technique is feasible for assessing thoracic aorta pathology, cardiac disease, and extracardiac findings.
  • This approach may become a primary imaging modality for preoperative cardiac risk stratification in TAA patients.
Abstract

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