Improved Volume Assessment of Abdominal Aortic Aneurysms Using a New Acquisition Protocol Combining Three-Dimensional Ultrasound and Magnetic Field Tracking – the First Results of a Clinical Feasibility Study

SummaryThe endovascular treatment of abdominal aortic aneurysms has generated a great deal of interest since the early 1990s, and many different devices are currently available. The procedure of endovascular repair has been evaluated in many institutions and the different devices are compared. The first results were encouraging, but complications like endoleak, dislocation or thrombosis of the graft occurred. By the available devices the stent application is only promising, if the known exclusion criteria are strictly respected. Therefore a careful preinterventional assessment of the patient by different imaging modalities is necessary. As the available results up to now are preliminary and the durability of the devices has to be controlled, multicenter studies are required to improve the devices and observe their long- term success in the exclusion of abdominal aortic aneurysms.

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Endoluminal Repair of Large Abdominal Aortic Aneurysms Using PTFE: A Feasibility Study

Journal of Endovascular Surgery ◽

10.1583/1074-6218(1997)004<0286:erolaa>2.0.co;2 ◽

1997 ◽

Vol 4 (3) ◽

pp. 286-289 ◽

Cited By ~ 11

Author(s):

Mohan Adiseshiah ◽

Alan J. Bray ◽

Patrice Bergeron ◽

Maurice J. Raphael

Keyword(s):

Feasibility Study ◽

Abdominal Aortic Aneurysms ◽

Aortic Aneurysms ◽

Endoluminal Repair ◽

Abdominal Aortic

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Commentary on “Follow-up on Small Abdominal Aortic Aneurysms Using Three Dimensional Ultrasound: Volume Versus Diameter”

European Journal of Vascular and Endovascular Surgery ◽

10.1016/j.ejvs.2017.08.010 ◽

2017 ◽

Vol 54 (4) ◽

pp. 446

Author(s):

Regula S. von Allmen

Keyword(s):

Three Dimensional ◽

Abdominal Aortic Aneurysms ◽

Aortic Aneurysms ◽

Volume Versus ◽

Abdominal Aortic

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Method for Incorporating Three-Dimensional Residual Stresses Into Patient-Specific Simulations of Arteries

Volume 1B: Extremity; Fluid Mechanics; Gait; Growth, Remodeling, and Repair; Heart Valves; Injury Biomechanics; Mechanotransduction and Sub-Cellular Biophysics; MultiScale Biotransport; Muscle, Tendon and Ligament; Musculoskeletal Devices; Multiscale Mechanics; Thermal Medicine; Ocular Biomechanics; Pediatric Hemodynamics; Pericellular Phenomena; Tissue Mechanics; Biotransport Design and Devices; Spine; Stent Device Hemodynamics; Vascular Solid Mechanics; Student Paper and Design Competitions ◽

10.1115/sbc2013-14232 ◽

2013 ◽

Author(s):

David M. Pierce ◽

Thomas E. Fastl ◽

Hannah Weisbecker ◽

Gerhard A. Holzapfel ◽

Borja Rodriguez-Vila ◽

...

Keyword(s):

Medical Imaging ◽

Three Dimensional ◽

Constitutive Models ◽

Abdominal Aortic Aneurysms ◽

Aortic Aneurysms ◽

Patient Specific ◽

Abdominal Aortic ◽

Model Geometry ◽

Reconstructed Model

Through progress in medical imaging, image analysis and finite element (FE) meshing tools it is now possible to extract patient-specific geometries from medical images of, e.g., abdominal aortic aneurysms (AAAs), and thus to study clinically relevant problems via FE simulations. Medical imaging is most often performed in vivo, and hence the reconstructed model geometry in the problem of interest will represent the in vivo state, e.g., the AAA at physiological blood pressure. However, classical continuum mechanics and FE methods assume that constitutive models and the corresponding simulations start from an unloaded, stress-free reference condition.

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