Prediction of rupture risk in abdominal aortic aneurysm during observation: Wall stress versus diameter
نویسندگان
چکیده
منابع مشابه
Biomechanical prediction of abdominal aortic aneurysm rupture risk: Sensitivity analysis
Objectives: The purpose of this research is to determine the quantitative relationship between the peak wall stress of abdominal aortic aneurysm (AAA) and its clinical risk factors including its maximum diameter, asymmetry index, wall thickness and abnormal high blood pressure. Methods: The response surface experimental design with one response and four variables was used to design the experime...
متن کاملAbdominal aortic aneurysm and risk of rupture.
370 residents of Rochester, Minnesota, with clinicallyrecognized unruptured abdominal aortic aneurysm (AAA), were identified through record review. The rolling entry period was 1951-1984. Of these 181 had at least one documenting ultrasound. Five persons had rupture of the aneurysm within 48 hours of the ultrasound exam, and were excluded from the study. The study group consisted of the remaini...
متن کاملPrediction of outcome after abdominal aortic aneurysm rupture.
BACKGROUND Most vascular surgeons practice a selective policy of operative intervention for patients with ruptured abdominal aortic aneurysm (AAA). The evidence on which to justify operative selection remains uncertain. This review examines the prediction of outcome after attempted open repair of ruptured AAA. METHODS The Medline and EMBASE databases and Cochrane Database of Systematic Review...
متن کاملThe role of geometric parameters in the prediction of abdominal aortic aneurysm wall stress.
OBJECTIVE To study the correlation between peak wall stress (PWS) and abdominal aorta aneurysm (AAA) geometric parameters in the presence of intraluminal thrombus (ILT). DESIGN Computational study using finite element analysis. MATERIAL AAA models were created by three-dimensional (3D) reconstruction of in vivo acquired computed tomography (CT) images from 19 patients. METHODS PWS was eva...
متن کاملGeometric Predictors of Abdominal Aortic Aneurysm Maximum Wall Stress.
Abdominal aortic aneurysm (AAA) is a dilation of the abdominal aorta (above 50 % of its original diameter), which can cause death upon rupturing. It usually grows asymptomatically leading to late clinical intervention. The medical criteria to indicate surgery are based on measuring the diameter and growth rate, but in many cases aneurysms fail at uncharacterized critical values. In search of a ...
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ژورنال
عنوان ژورنال: Journal of Vascular Surgery
سال: 2003
ISSN: 0741-5214
DOI: 10.1067/mva.2003.213