Quantitative assessment of device-clot interaction for stent retriever thrombectomy.

Purpose: Rapid revascularization in emergent large vessel occlusion with endovascular embolectomy has proven clinical benefit. We sought to measure device-clot interaction as a potential mechanism for efficient embolectomy.

Methods: Two different radiopaque clot models were injected to create a middle cerebral artery occlusion in a patient-specific vascular phantom.

Aneurysm permeability following coil embolization: packing density and coil distribution.

Background: Rates of durable aneurysm occlusion following coil embolization vary widely, and a better understanding of coil mass mechanics is desired. The goal of this study is to evaluate the impact of packing density and coil uniformity on aneurysm permeability.

Methods: Aneurysm models were coiled using either Guglielmi detachable coils or Target coils.