Pattern Change of Flow Diverters due to Bending

Abstract

Flow diverters have a very short history, their research and clinical use for intracranial aneurysms spread in the last 10 years. Because of the novelty of these devices there are many fields to research, that correlate with the effect of flow diverters. Such research may improve the safety and efficacy of the technique. These devices are very flexible and can be slightly bent, but the surface muster changes frequency, so the metallic surface area in the surroundings of the aneurysm is not constant. The current manufacturers are working with several musters, there is not an ideal surface structure, and there is neither a standard index-number for the optimal MSA. The aim of this study is to test flow diverter devices from several producers in fixed bending angles, in variable points obtain the muster, and calculate the coverage. Based on the results an objective measurement for the local values can be defined. The ideal measurement for coverage can be decided by analyzing the microscopic images of the stents in the marked points and in the determined angles.