Elasticity and viscoelasticity of embolization microspheres.

Effects of Surface Viscoelasticity on Cellular Responses of Endothelial Cells

Background: One area of nanoscience deals with nanoscopic interactions between nanostructured materials and biological systems. To elucidate the effects of the substrate surface morphology and viscoelasticity on cell proliferation, fractal analysis was performed on endothelial cells cultured on nanocomposite samples based on silicone rubber (SR) and various concentrations of organomodified nano...

Measurement of Elastic Moduli of the Arterial Wall at Multiple Frequencies by Remote Actuation for Assessment of Viscoelasticity

To characterize tissues in atherosclerotic plaques, we have developed a method, the phased tracking method, for measuring the strain (change in wall thickness) and elasticity of the arterial wall. However, some types of tissue, such as lipids and blood clots, cannot be discriminated from each other based only on elasticity due to the small difference in their elasticity. For more precise tissue...

Rate-type Elasticity and Viscoelasticity of an Erythrocyte Membrane

Trisacryl gelatin microspheres for therapeutic embolization, II: preliminary clinical evaluation in tumors and arteriovenous malformations.

PURPOSE To evaluate an embolic agent that is precisely calibrated, perfectly spherical in shape, and soft but nonresorbable for use in the embolization of vascular disease of the head, neck, and spine in humans. METHODS We used supple, hydrophilic, and calibrated trisacryl gelatin microspheres 200, 400, 600, 800 and 1000 microns in diameter for superselective embolization in 105 patients (27 ...

An early-stage, non-hypervascular HCC successfully treated by superselective, bland transarterial embolization using 40-μm microspheres.

Transcatheter embolization is considered to be less effective for early-stage hepatocellular carcinomas (HCCs) without a hypervascular arterial supply. In the present case report, a 65-year-old male with hepatitis type C and non-hypervascular HCC located in the hepatic hilum was successfully treated by bland transarterial embolization (TAE). After the temporary protective embolization of normal...