2018
DOI: 10.1093/ehjci/jey051
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Quantification of aortic stiffness and wall stress in healthy volunteers and abdominal aortic aneurysm patients using time-resolved 3D ultrasound: a comparison study

Abstract: The AAA pathology causes an early and significant increase in aortic stiffness of the abdominal aorta, even after correcting for the expected effect of ageing and differences in arterial pressure. Moreover, some AAAs revealed relatively high PWS, although the maximum diameter was below the threshold for surgical repair. Using the current method, these measures become available during follow-up, which could improve AAA rupture risk assessment.

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Cited by 50 publications
(53 citation statements)
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“…Membrane stiffness k=Δτ/Δε, where Δτ=Δσ·h=Δp·r and thus k=Eh, could be considered as an alternative to the DC for thin‐walled structures (e.g. []). The current radius (or for more complicated geometries the local principal radii) can be determined from various in vivo imaging data with sufficient accuracy.…”
Section: Limitationsmentioning
confidence: 99%
See 1 more Smart Citation
“…Membrane stiffness k=Δτ/Δε, where Δτ=Δσ·h=Δp·r and thus k=Eh, could be considered as an alternative to the DC for thin‐walled structures (e.g. []). The current radius (or for more complicated geometries the local principal radii) can be determined from various in vivo imaging data with sufficient accuracy.…”
Section: Limitationsmentioning
confidence: 99%
“…Another approach is to estimate individual wall strength based on correlation models using several individual risk factors . Very recently, [] have determined the individual membrane stiffness of the aortic and aneurysmal wall based on 4D ultrasound displacement and blood pressure measurements and have computed peak wall stresses in AAA using these linearized individual material properties. Currently, the lack of validation of biomechanical simulations for risk stratification of aneurysms is preventing their widespread use in clinical practice.…”
Section: Introductionmentioning
confidence: 99%
“…Analyzing the dynamic motion of the arterial wall has been proposed recently as a tool to analyze peak wall stress and stiffness. In fact, noninvasive measurement of arterial stiffness using radial artery tonometry, strain imaging of aortic aneurysms, as well as 3D speckle tracking in abdominal aortic aneurysms, appear to have potential diagnostic and prognostic applications. In our essay, we focus on a more basic and entirely qualitative analysis of the radial and longitudinal arterial wall motions for the diagnosis of arterial occlusion.…”
Section: Discussionmentioning
confidence: 99%
“…Vessel geometry information is often obtained using digital subtraction angiography (DSA), computed tomographic angiography (CTA), or magnetic resonance angiography (MRA). Recent efforts have also utilized volumetric ultrasound or optical coherence tomography to acquire vessel geometry (Jia et al, 2012;Van Disseldorp et al, 2019), but their application to CFD remains limited to animal studies (Phillips et al, 2017).…”
Section: Imagingmentioning
confidence: 99%