Thrombus Volume Change Visualization after Endovascular Abdominal Aortic Aneurysm Repair

Autores: Josu Maiora and Guillermo García and Iván Macía and Jon Haitz Legarreta and Fernando Boto and Manuel Graña and Javier Sánchez

Fecha: 24.06.2010


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Abstract

A surgical technique currently used in the treatment of Abdominal Aortic Aneurysms (AAA) is the Endovascular Aneurysm Repair (EVAR). This minimally invasive procedure involves inserting a prosthesis in the aortic vessel that excludes the aneurysm from the bloodstream. The stent, once in place acts as a false lumen for the blood current to travel down, and not into the surrounding aneurysm sac. This procedure, therefore, immediately takes the pressure off the aneurysm, which thromboses itself after some time. Nevertheless, in a long term perspective, different complications such as prosthesis displacement or bloodstream leaks into or from the aneurysmatic bulge (endoleaks) could appear causing a pressure elevation and, as a result, increasing the danger of rupture. The purpose of this work is to explore the application of image registration techniques to the visual detection of changes in the thrombus in order to assess the evolution of the aneurysm. Prior to registration, both the lumen and the thrombus are segmented.

BIB_text

@Article {
author = {Josu Maiora and Guillermo García and Iván Macía and Jon Haitz Legarreta and Fernando Boto and Manuel Graña and Javier Sánchez},
title = {Thrombus Volume Change Visualization after Endovascular Abdominal Aortic Aneurysm Repair},
pages = {524-531},
volume = {6076},
keywds = {
Endovascular Aneurysm Repair, postoperative monitoring, registration
}
abstract = {
A surgical technique currently used in the treatment of Abdominal Aortic Aneurysms (AAA) is the Endovascular Aneurysm Repair (EVAR). This minimally invasive procedure involves inserting a prosthesis in the aortic vessel that excludes the aneurysm from the bloodstream. The stent, once in place acts as a false lumen for the blood current to travel down, and not into the surrounding aneurysm sac. This procedure, therefore, immediately takes the pressure off the aneurysm, which thromboses itself after some time. Nevertheless, in a long term perspective, different complications such as prosthesis displacement or bloodstream leaks into or from the aneurysmatic bulge (endoleaks) could appear causing a pressure elevation and, as a result, increasing the danger of rupture. The purpose of this work is to explore the application of image registration techniques to the visual detection of changes in the thrombus in order to assess the evolution of the aneurysm. Prior to registration, both the lumen and the thrombus are segmented.
}
isbn = {978-3-642-13768-6},
date = {2010-06-24},
year = {2010},
}
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