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Updated: Aug 27, 2025

Ultrasound Imaging of the Thoracic and Abdominal Aorta in Mice to Determine Aneurysm Dimensions
Published on: March 8, 2019
Statistical shape representation of the thoracic aorta: accounting for major branches of the aortic arch
Hadi Wiputra1, Shion Matsumoto2, Jessica E Wagenseil3
1Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, USA.
Abstract:
Statistical shape modeling (SSM) is an emerging tool for risk assessment of thoracic aortic aneurysm. However, the head branches of the aortic arch are often excluded in SSM. We introduced an SSM strategy based on principal component analysis that accounts for aortic branches and applied it to a set of patient scans. Computational fluid dynamics were performed on the reconstructed geometries to identify the extent to which branch model accuracy affects the calculated wall shear stress (WSS) and pressure. Surface-averaged and location-specific values of pressure did not change significantly, but local WSS error was high near branches when inaccurately modeled.
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