Segmentation of abdominal aortic aneurysms in CT images using a radial model approach
IDEAL'09 Proceedings of the 10th international conference on Intelligent data engineering and automated learning
A hybrid system for survival analysis after EVAR treatment of AAA
HAIS'11 Proceedings of the 6th international conference on Hybrid artificial intelligent systems - Volume Part II
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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