Improved ultrasound-based mechanical characterization of abdominal aortic aneurysms

N.J. Petterson; E.M.J. Van Disseldorp; F.N. Van De Vosse; M.R.H.M. Van Sambeek; R.G.P. Lopata

doi:10.1109/ULTSYM.2017.8091744

Improved ultrasound-based mechanical characterization of abdominal aortic aneurysms

N.J. Petterson, E.M.J. Van Disseldorp, F.N. Van De Vosse, M.R.H.M. Van Sambeek, R.G.P. Lopata

Cardiovascular Biomechanics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

1 Citation (Scopus)

3 Downloads (Pure)

Abstract

Novel methods for determining rupture risk in abdominal aortic aneurysms (AAAs) have focused primarily on CT-based wall stress analysis using finite element models (FEMs). Recent studies have demonstrated ultrasound (US) based FEM, and the possibility of using inverse FEM analysis: matching displacements between the models and US to find patient specific aortic stiffness. This requires an accurate representation of deformation of the FEM-based aorta, which could be highly influenced by the presence of surrounding tissue. Typically, these methods solely include the vessel, fixed on both ends. The abdominal aorta (AA) however is surrounded by other tissue including the spine, which acts as a stiff boundary. In this study, AA(A) models based on 4D US were constructed with increasing complexity. The importance of modelling surrounding tissues was investigated by comparing mechanical parameters.

Original language	English
Title of host publication	2017 IEEE International Ultrasonics Symposium, IUS 2017
Place of Publication	Brussels
Publisher	IEEE Computer Society
Number of pages	1
ISBN (Electronic)	978-1-5386-3383-0
ISBN (Print)	978-1-5386-3384-7
DOIs	https://doi.org/10.1109/ULTSYM.2017.8091744
Publication status	Published - 31 Oct 2017
Event	2017 IEEE International Ultrasonics Symposium (IUS 2017) - e Omni Shoreham Hotel, Washington, United States Duration: 6 Sept 2017 → 9 Sept 2017 http://ewh.ieee.org/conf/ius/2017/

Conference

Conference	2017 IEEE International Ultrasonics Symposium (IUS 2017)
Abbreviated title	IUS 2017
Country/Territory	United States
City	Washington
Period	6/09/17 → 9/09/17
Internet address	http://ewh.ieee.org/conf/ius/2017/

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10.1109/ULTSYM.2017.8091744

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title = "Improved ultrasound-based mechanical characterization of abdominal aortic aneurysms",

abstract = "Novel methods for determining rupture risk in abdominal aortic aneurysms (AAAs) have focused primarily on CT-based wall stress analysis using finite element models (FEMs). Recent studies have demonstrated ultrasound (US) based FEM, and the possibility of using inverse FEM analysis: matching displacements between the models and US to find patient specific aortic stiffness. This requires an accurate representation of deformation of the FEM-based aorta, which could be highly influenced by the presence of surrounding tissue. Typically, these methods solely include the vessel, fixed on both ends. The abdominal aorta (AA) however is surrounded by other tissue including the spine, which acts as a stiff boundary. In this study, AA(A) models based on 4D US were constructed with increasing complexity. The importance of modelling surrounding tissues was investigated by comparing mechanical parameters.",

author = "N.J. Petterson and {Van Disseldorp}, E.M.J. and {Van De Vosse}, F.N. and {Van Sambeek}, M.R.H.M. and R.G.P. Lopata",

year = "2017",

month = oct,

day = "31",

doi = "10.1109/ULTSYM.2017.8091744",

language = "English",

isbn = "978-1-5386-3384-7 ",

booktitle = "2017 IEEE International Ultrasonics Symposium, IUS 2017",

publisher = "IEEE Computer Society",

address = "United States",

note = "2017 IEEE International Ultrasonics Symposium (IUS 2017), IUS 2017 ; Conference date: 06-09-2017 Through 09-09-2017",

url = "http://ewh.ieee.org/conf/ius/2017/",

}

Petterson, NJ, Van Disseldorp, EMJ, Van De Vosse, FN , Van Sambeek, MRHM & Lopata, RGP 2017, Improved ultrasound-based mechanical characterization of abdominal aortic aneurysms. in 2017 IEEE International Ultrasonics Symposium, IUS 2017., 8091744, IEEE Computer Society, Brussels, 2017 IEEE International Ultrasonics Symposium (IUS 2017), Washington, United States, 6/09/17. https://doi.org/10.1109/ULTSYM.2017.8091744

Improved ultrasound-based mechanical characterization of abdominal aortic aneurysms. / Petterson, N.J.; Van Disseldorp, E.M.J.; Van De Vosse, F.N. et al.
2017 IEEE International Ultrasonics Symposium, IUS 2017. Brussels: IEEE Computer Society, 2017. 8091744.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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AU - Lopata, R.G.P.

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AB - Novel methods for determining rupture risk in abdominal aortic aneurysms (AAAs) have focused primarily on CT-based wall stress analysis using finite element models (FEMs). Recent studies have demonstrated ultrasound (US) based FEM, and the possibility of using inverse FEM analysis: matching displacements between the models and US to find patient specific aortic stiffness. This requires an accurate representation of deformation of the FEM-based aorta, which could be highly influenced by the presence of surrounding tissue. Typically, these methods solely include the vessel, fixed on both ends. The abdominal aorta (AA) however is surrounded by other tissue including the spine, which acts as a stiff boundary. In this study, AA(A) models based on 4D US were constructed with increasing complexity. The importance of modelling surrounding tissues was investigated by comparing mechanical parameters.

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Improved ultrasound-based mechanical characterization of abdominal aortic aneurysms

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