|
Descripción
|
|
|---|---|
| Atherosclerosis is a vascular disease in which an artery wall thickens due to building-up of fatty elements such as cholesterol. We studied the coronary artery bifurcation because it is a region particularly prone to plaque deposition. It is thought that the local blood flow pattern in these places is one of the factors responsible of atherosclerosis. The use of the coronary stents is one of the most popular treatments for this cardiovascular disease. Stents are tiny mesh tubular-like structures that scaffold blood vessels in order to maintain them open. Even though stents are designed to be compatible with the human being body, there is sometimes a chain of undesirable consequences such as scars formed on the tissue of the vessel or the modification of the local blood flow. These effects produce higher rates of restenosis over the first 6-12 months. In this article, the influence of the stenting techniques on the local blood flow is considered. We focused our efforts on three different stenting bifurcations using a single stent and a fourth one using two stents through the culotte technique. The first case was a bifurcation with a single stent in the main branch, whose struts jailed the side hole of the side branch. The rest of the cases except the culotte technique consisted of a single stent in the main branch, but yielding an almost metal-free hole in the bifurcation. They differed in the size of the free-metal side hole. Every case was studied with two different bifurcation angles: 45º and 90º. The geometry was introduced in Fluent. These cases were compared with the results obtained in experimental procedures. | |
|
Internacional
|
Si |
|
Entidad
|
CMNE (Congress on numerical methods in engineering) |
|
Lugar
|
Coimbra (Portugal) |
|
Páginas
|
|
|
Referencia/URL
|
CMNE (Congress on numerical methods in engineering) |
|
Tipo de publicación
|
Proceedings |