Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 17 of 17 for “"EVAR"”.
-
Imaging of abdominal aortic aneurysm disease activity and implications for endovascular aneurysm repair
… aneurysm disease. Endovascular aneurysm repair (EVAR) is one treatment modality which reduces the procedural morbidity and mortality associated with open surgical repair. However, EVAR patients can develop complications such as leaks behind their stent graft (endoleak) which reduces the long-term …
-
A Markov decision analysis model to aid the vascular surgeon in the management of a patient with an asymptomatic infra-renal abdominal aortic aneurysm
… the safety and efficacy of endovascular (EVAR) and open abdominal aortic aneurysm repair, it is often unclear which technique is most appropriate for an individual patient. We have designed a decision analysis model that will predict survival, reintervention rates and other parameters for …
-
AORTIC STIFFNESS MODIFICATIONS AFTER ENDOVASCULAR AORTIC REPAIR
Background: Endovascular aortic repair (EVAR and TEVAR) has transformed the management of aortic aneurysms and dissections through its minimally invasive approach and favorable short-term outcomes. However, concerns regarding the long-term cardiovascular implications of endograft implantation have …
-
Expectil como medida de riesgo alterna al VaR y al Expected Shortfall (Una aplicación sobre factores de riesgo)
… se estudia la medida basada en Expectiles (EVaR) propuesta por Kuan et al (2009) como alternativa frente a las medidas de riesgo Value at risk y Expected Shortfall. Se modela el EVaR bajo dos enfoques: Modelos Paramétricos y Semiparamétricos, utilizando la medida de riesgo basada en …
-
Quantifying AAAs and developing FEA models for stent grafts
… technique of endovascular aneurysm repair (EVAR) is preferred, via the introduction of a stent graft into the aneurysmal region. In this thesis, finite element analysis (FEA) techniques have been developed to model the AnacondaTM stent graft. The aim is to produce the necessary numerical …
-
Morfometría y análisis del perfil pronóstico de endofugas tipo 2 detectadas en el primer control de tomografía computarizada tras el tratamiento endovascular de aneurismas de aorta abdominal
… y objetivos La reparación endovascular (EVAR) de aneurismas de la aorta abdominal (AAA) se ha popularizado en la última década gracias a una sólida reputación de seguridad y efectividad, permitiendo obtener cifras de mortalidad postoperatoria significativamente inferiores a la cirugía …
-
Fluid Flow Characterization and In Silico Validation in a Rapid Prototyped Abdominal Aortic Aneurysm Model
… be treated using endovascular aneurysm repair (EVAR). Understanding how the flow of the blood within the artery is affected by the aneurysm is important in determining the growth of the aneurysm, as well as how to properly treat the aneurysm. The goal of this project was to develop a physical …
-
Development of a novel uncovered stent system for the management of complex aortic aneurysms
Endovascular aortic repair (EVAR) is a minimally invasive alternative to open surgery for the treatment of aortic aneurysms (AA). However, standard EVAR is not applicable to complex AA with involvement of vital branches, which could be occluded by the endograft. As an emerging technique, the …
-
Clinical Aspects on Chimney Stent Graft Technique in Endovascular Repair of the Aorta.
… of CG in patients for whom standard EVAR was contraindicated because of a short aneurysmal neck. Results: The results showed that CG is applicable and safe for midaortic occlusive diseases with high technical success and patency rate without major adverse effect. The treated patients …
-
Patient-specific thoracic endovascular aoratic repair (TEVAR)
Endovascular aortic repair (EVAR) is a minimally invasive procedure to treat aortic aneurysms. Current off-the-shelf devices may not fit the patient perfectly, potentially increasing the chance of post-operative complications. This project aims to provide proof of concept for rapidly creating …
-
A Novel Multiblock Immersed Boundary Method Enabling High Order Large Eddy Simulation Of Pathological And Medical Device Hemodynamics
… (TASG) geometry after an endovascular repair (EVAR). Phase averaged velocity profiles, turbulence kinetic energy levels, viscous wall shear stresses and turbulence energy spectra are used to compare the similarities and differences between the blood flow patterns obtained. Presence of well …
-
Abdominal Aortic Aneurysm – Different Aspects on Screening
… in the new era of decreased AAA prevalence, EVAR as the predominant treatment method and improved medical treatment. By using a Markov model we could show that it is still cost-effective to screen for AAA even with the aformentioned changes. In conclusion; Screening for AAA seems justified in …
-
Validación externa de una escala predictiva de mortalidad y análisis de factores pronósticos en el aneurisma de aorta abdominal roto en el sur de España
… la introducción del tratamiento endovascular (EVAR) y la creación de protocolos de actuación específico, se ha reducido la mortalidad en algunas series hasta el 30-50% aprox. La decisión de proceder o no con la intervención quirúrgica es un desafío complejo al que se enfrenta el cirujano …
-
Computational Modelling and Treatment Optimization of Acute Endovascular and Respiratory Conditions
… AAA is minimally invasive endovascular repair (EVAR), whereby a compliant tubular material reinforced with a metallic stent (an endograft) is implanted inside the aneurysm. For aneurysms that extend across major abdominal vessels (juxtarenal aneurysms), a fenestrated (or sub-branched) endograft …
-
A study of some methods for the preparation of 3,4-dimethyl-1-pentanol
Thesis (M.S.)--Michigan State College of Agriculture and Applied Science, 1950