Constitutive modeling of ascending thoracic aortic aneurysms using microstructural parameters
نویسندگان
چکیده
منابع مشابه
Biaxial rupture properties of ascending thoracic aortic aneurysms.
UNLABELLED Although hundreds of samples obtained from ascending thoracic aortic aneurysms (ATAA) of patients undergoing elective surgical repair have already been characterized biomechanically, their rupture properties were always derived from uniaxial tensile tests. Due to their bulge shape, ATAAs are stretched biaxially in vivo. In order to understand the biaxial rupture of ATAAs, our group d...
متن کاملThoracic Aortic Aneurysms
The true incidence and mortality rate of TAAs is not known. A population-based study reported an incidence of 5.9 new aneurysms per 100,000 person-years in a Midwestern community over a 30-year period with median ages of 65 years for men and 77 years for women. 51% of aneurysms were in the ascending aorta, 11% in the arch and 38% in the descending thoracic aorta. Prevalence may be at least 3-4 ...
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Changes in the local mechanical environment and tissue mechanical properties affect the biological activity of cells and play a key role in a variety of diseases, such as cancer, arthritis, nephropathy, and cardiovascular disease. Constitutive relations have long been used to predict the local mechanical environment within biological tissues and to investigate the relationship between biologica...
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The biomechanical properties of ascending aortic aneurysms were investigated only in the last decade in a limited number of studies. Indeed, in recent years, there has been a growing interest in this field in order to identify new predictive parameters of risk of dissection, which may have clinical relevance. The researches performed so far have been conducted according to the methods used in t...
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Aneurysms of the aorta are at times evaluated and treated by physicians from a number of specialties. Indeed, whereas cardiac surgeons operate on the ascending aorta and arch and vascular surgeons manage abdominal aortic aneurysms, at present the responsibility often falls to cardiologists to oversee the medical care of patients with aortic disease of all types. However, although formally train...
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ژورنال
عنوان ژورنال: Medical Engineering & Physics
سال: 2016
ISSN: 1350-4533
DOI: 10.1016/j.medengphy.2015.11.001