The Arterial Distribution of Embozene and Embosphere Microspheres in Sheep Kidney and Uterus Embolization Models

Embozene microspheres have a higher in vivo deformation, which results in a more distal occlusion within the vascular network compared with reference Embosphere microspheres. The diameter of occluded vessels varied for the tested size range for Embosphere but was independent of the tested microsphere size range used for Embozene. The deformation of Embozene appears to determine the size of the vessels occluded as opposed to the granulometric particle size, which makes level of occlusion unpredictable.