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Thoracic Aorta

Thoracic Aorta

The thoracic section of the aorta begins at the T5 vertebra and extends to the T12 level at the diaphragm, initially progressing through the mediastinum to the left of the spinal column. Throughout its course in the thoracic segment, the thoracic aorta emits various offshoots known collectively as visceral and parietal branches. The branches that predominantly supply blood to visceral organs are termed visceral branches and include bronchial, pericardial, esophageal, and mediastinal arteries,...

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Related Experiment Video

Updated: May 11, 2026

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

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

Published on: March 8, 2019

Analysis of the thoracic aorta using a semi-automated post processing tool.

Pegah Entezari¹, Aya Kino, Amir R Honarmand

¹Department of Radiology, Cardiovascular Imaging, Northwestern University, Chicago, IL, United States. p-entezari@northwestern.edu

European Journal of Radiology

|May 18, 2013

Summary

A semi-automated method for thoracic aortic aneurysm (TAA) measurement using ECG-gated Dual Source CT Angiogram (DSCTA) is feasible. This approach offers reduced post-processing time compared to manual measurements.

Keywords:

3D segmentation Aortic aneurysm Aortic luminal diameter measurement CT Angiography Quantitative analysis Thoracic Aorta

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Last Updated: May 11, 2026

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

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

Published on: March 8, 2019

Analysis of Extracellular Vesicle-Mediated Vascular Calcification Using In Vitro and In Vivo Models

Analysis of Extracellular Vesicle-Mediated Vascular Calcification Using In Vitro and In Vivo Models

Published on: January 27, 2023

Area of Science:

Radiology and Imaging
Cardiovascular Imaging
Medical Device Technology

Background:

Thoracic Aortic Aneurysm (TAA) measurement is crucial for diagnosis and management.
Traditional manual measurement methods can be time-consuming and prone to variability.
ECG-gated Dual Source CT Angiogram (DSCTA) provides high-resolution imaging of the thoracic aorta.

Purpose of the Study:

To evaluate the feasibility and accuracy of a semi-automated method for TAA measurement.
To compare the performance of semi-automated measurements with the standard manual method.
To assess the time efficiency of the semi-automated approach.

Main Methods:

A retrospective study of 50 patients using ECG-gated DSCTA.
Measurements of thoracic aorta dimensions at seven anatomic locations using both manual and semi-automated software.
Evaluation of inter-method, intra-observer, and inter-observer agreement using ICC and Bland-Altman plots.

Main Results:

The semi-automated method demonstrated strong agreement with manual measurements (ICC ≥ 0.9) with a mean difference <1.3mm.
Post-processing time was significantly reduced with the semi-automated tool (8.26 min) compared to the manual method (19 min).
Manual adjustments for center line and contour were required, with the annulus showing the highest rate of correction.

Conclusions:

Semi-automated measurement of thoracic aorta dimensions is feasible and accurate.
The semi-automated method offers a significant advantage in reduced post-processing time.
This technique can improve efficiency in TAA assessment using DSCTA.