Assessment of the rupture risk of abdominal aortic aneurysms by patient-specific hemodynamic modeling - initial results
نویسندگان
چکیده
Introduction At present, the diameter of an abdominal aortic aneurysm (AAA) is considered to be the primary indicator of rupture risk. Surgical treatment is usually performed if the diameter exceeds 5 cm. Rupture does however occur for diameters less than 5 cm. We therefore investigate if better rupture risk indicators can be obtained by patientspecific hemodynamic modeling. This paper discusses the steps involved in this modeling and it describes our approach and first results for each of the steps.
منابع مشابه
Drug Therapy for Small Abdominal Aortic Aneurysm
Dear Editor,Abdominal aortic aneurysm is often asymptomatic, less recognized, and causes considerable mortality and morbidity, if missed. The incidence varies from country to country and the occurrence is influenced by modifiable (smoking, coronary heart disease, hypertension, dyslipidemia, and prolonged steroid therapy) and non-modifiable risk factors (increasing age, male gender, and positive...
متن کاملA longitudinal comparison of hemodynamics and intraluminal thrombus deposition in abdominal aortic aneurysms.
Abdominal aortic aneurysm (AAA) is often accompanied by in traluminal thrombus (ILT), which complicates AAA progression and risk of rupture. Patient-specific computational fluid dynamics modeling of 10 small human AAA was performed to investigate relations between hemodynamics and ILT progression. The patients were imaged using magnetic resonance twice in a 2- to 3-yr interval. Wall content dat...
متن کاملManagement of anesthesia in a patient with ruptured abdominal aortic aneurysm: A case report
Introduction: Abdominal aortic aneurysm is a multifactorial condition which associated with aging and atherosclerosis. During aneurysm surgery, hypotension after aortic clamp removing occure commonly that require specific treatments. This case report showes administration of blood and hemodynamic control methods after aortic unclumping during aortic aneurysm surgery. Patient: A 75–years-o...
متن کاملA Literature Review of the Numerical Analysis of Abdominal Aortic Aneurysms Treated with Endovascular Stent Grafts
The purpose of this paper is to present the basic principles and relevant advances in the computational modeling of abdominal aortic aneurysms and endovascular aneurysm repair, providing the community with up-to-date state of the art in terms of numerical analysis and biomechanics. Frameworks describing the mechanical behavior of the aortic wall already exist. However, intraluminal thrombus non...
متن کاملAnalysis and computer program for rupture-risk prediction of abdominal aortic aneurysms
BACKGROUND Ruptured abdominal aortic aneurysms (AAAs) are the 13th leading cause of death in the United States. While AAA rupture may occur without significant warning, its risk assessment is generally based on critical values of the maximum AAA diameter (> 5 cm) and AAA-growth rate (> 0.5 cm/year). These criteria may be insufficient for reliable AAA-rupture risk assessment especially when pred...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2004