Method to Quantify Flow Reduction in Aneurysmal Cavities of Lateral Wall Aneurysms Produced by Stent Implants Used for Flow Diversion

• Published in: Interventional neuroradiology Vol. 12; no. 1_suppl; pp. 197 - 200
• Main Authors: Fujimura, N., Ohta, M., Abdo, G., Ylmaz, H., Lovblad, K.-O, Rüfenacht, D.A.
• Format: Journal Article
• Language: English
• Published: London, England SAGE Publications 01.01.2006; Centauro S.r.l
• Subjects: Original; measurement of flow; cerebral aneurysm; intracranial stent
• ISSN: 1591-0199; 2385-2011
• DOI: 10.1177/15910199060120S135

Stent implants placed across the neck of cerebral aneurysms are capable of reducing aneurysmal flow when coils are not used for filling the aneurysms. It is important to evaluate the effects of flow reduction caused by stent implants used for the treatment of cerebral aneurysms. Subtracted vortex centers path line method (SVC method) is one of the image post processing methods employed for quantitative flow measurement. We developed a modified SVC method by employing Cinematic Angiography (25 frames/s) and digital video recording (30 frames/s) with a commercial digital camera. We successfully compared the flow effectiveness using a tubular silicon model with a sidewall aneurysm. The result suggests that our modified SVC method is useful for a comparative examination of the effect of aneurysmal flow reduction caused by stent implants.