Aortic Biomechanical Strain
Aortic Biomechanical Strain - Related Videos
10:24
Quantitative Strain Mapping of an Abdominal Aortic Aneurysm
0 Views •
2023
Source: Hannah L. Cebull1, Arvin H. Soepriatna1, John J. Boyle2 and Craig J. Goergen1 1Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 2Mechanical Engineering & Materials Science, Washington University in St. Louis, St Louis, Missouri The mechanical behavior of soft tissues, such as blood vessels, skin, tendons, and other organs, are strongly influenced by their composition of elastin and collagen, which provide elasticity and strength. The fiber...
11:47
Construction of a Human Aorta Smooth Muscle Cell Organ-On-A-Chip Model for Recapitulating Biomechanical Strain in the Aortic Wall
0 Views •
Cited by 1 •
2022
Here, we developed a human aorta smooth muscle cell organ-on-a-chip model to replicate the in vivo biomechanical strain of smooth muscle cells in the human aortic wall.
04:42
In Vivo Biomechanical Testing of Nerve: A Procedure for Biomechanical Analysis of Brachial Plexus Nerve Injury in a Neonatal Pig Model
0 Views •
2025
In this video, we demonstrate the biomechanical testing of the brachial plexus nerve in a pig model to measure the threshold tensile strength of the nerve when subjected to stretching. This technique helps in determining the structural and mechanical properties of the nerve.
12:17
Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
0 Views •
Cited by 4 •
2017
Full-root aortic valve replacement by stentless aortic xenograft is a viable option in patients with small aortic roots. We describe, a technique for the full-root implantation of stentless aortic xenografts, with emphasis on the management of the proximal suture line and coronary anastomoses, and discuss its limitations and alternative options.
09:12
Aortic Ring Assay
0 Views •
Cited by 42 •
2009
Angiogenesis, the sprouting of blood vessels from pre-existing vasculature, is associated with both natural and pathological processes. Here we demonstrate an aortic ring assay that allows angiogenic potentiators and inhibitors to be directly added to aortic rings in culture. Sprouting and neovessel outgrowth can be determined by inspecting the aortic rings over a period of 6-12 days.
FAQs
Aortic biomechanical strain changes across the cardiac cycle because intraluminal pressure is not constant. As pressure rises, the aortic wall deforms, then recoils as loading decreases. The magnitude of this deformation links pulsatile cardiovascular loading to the aorta’s mechanical response, rather than treating the vessel as a structure with one unchanging shape.
The same pressure change can produce different strain values in different aortas. Wall composition, thickness, geometry, and material stiffness all influence how readily the tissue deforms. These variables help explain why structural remodeling or altered material properties can change mechanical behavior, even when the applied blood-pressure load is similar.
Strain provides information about how much the aortic wall deforms under mechanical loading, while stiffness describes how strongly the tissue resists that deformation. Together, these measures help characterize arterial compliance, meaning the vessel’s capacity to respond to pressure changes. Evaluating both perspectives can clarify whether altered mechanics reflect tissue properties, geometry, or wall structure.
A bioengineering analysis relates changes in aortic tissue dimensions to the pressure and flow conditions occurring during the cardiac cycle. Researchers can measure strain to characterize the observed mechanical response or model it using wall composition, thickness, geometry, and stiffness. This approach supports quantitative evaluation of vascular structure and function.
Strain analysis helps identify mechanical changes associated with abnormal aortic remodeling. Because deformation depends on wall structure and material stiffness, altered strain may reveal that the vessel is responding differently to its normal loading conditions. In aneurysm research, these measurements or models can therefore contribute to earlier detection of structural changes and improved assessment of disease progression.
Aortic biomechanical strain provides a mechanical framework for examining how vascular grafts and stents respond within the aortic environment. Comparing deformation behavior with the surrounding vessel can help bioengineers assess whether a device is compatible with expected loading and movement. The resulting information can support design improvements and more realistic cardiovascular mechanics simulations.