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The Change of Flow Characteristics in Lateral Aneurysm Models for Different Coil Locations  

이계한 (명지대학교 공과대학 기계공학부)
송계웅 (명지대학교 공과대학 기계공학부)
변홍식 (삼성의료원 영상의학과)
Publication Information
Journal of Biomedical Engineering Research / v.23, no.5, 2002 , pp. 375-383 More about this Journal
Abstract
Aneurysm embolisation method using coils have been widely used. Micro coils are introduced via a small catheter, and are packed inside of aneurysm sac, which induces intraaneurysmal flow stagnation and thrombus formation. When partial blocking of an aneurysm is inevitable, the location of coils is important since it changes the flow patterns inside the aneurysm, which affect the embolisation process. We measured the flow field inside the partially blocked lateral aneurysm models in vitro, and tried to suggest the effective locations of coils for aneurysm embolisation. Velocity fields are measured using a particle image velocitimeter for different coil locations- proximal neck, distal neck, proximal dome and distal dome. Flow into the aneurysm sac was significantly reduced in the distally blocked models, and coils at distal neck blocked inflow more effectively comparing to those at distal dome. This study suggests that distal neck should be the most effective location for aneurysm embolisation.
Keywords
Lateral Aneurysm; Coil Embolisation; Hemodynamics; PIV;
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Times Cited By KSCI : 1  (Citation Analysis)
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