Acoustical and Physical Characteristic of a New Blood Mimicking Fluid Phantom

Abstract

Offer a blood-mimicking fluids (BMF) for test object of medical ultrasound diagnostic instruments in this article is done. Both the acoustical (speed of sound and attenuation) and physical (density and viscosity) properties were defined and specified in the International Electrotechnical Commission standard and are given as a constant value. However, the viscosity of human blood depends greatly on the shear rate of the blood. In accurate studies that use a specified flow phantom, the BMFs with the appropriate viscosity are required. Furthermore, since the BMF considered as Newtonian, the viscosity it can has an arbitrary viscosity (more than 4.1 mPa.s). This article displays a general overview about the effect of density and molecular weight of dextran which is a component of mixture fluid that was used in BMF preparation. For this reason, we replaced the dextran 185000D (0.90 g/ml) with dextran 150000D powder material (0.25 g/ml). To produce liquids with proper viscosity in unit of mPa.s, we have prepared a new ternary fluid made of water, glycerol and dextran 150000D powder material.