Precisely evaluation of temperature influence on artificial blood phantom properties made of polymers using ultrasound signals

Abstract

<b>Purpose</b>: The study aims to evaluate precisely influence of temperature on the acoustical and physical properties of blood mimicking fluid (BMF) phantom made of polymer material.<br /> <b>Materials &amp; methods</b>: Propylene glycol (PG) and polyethylene glycol (PEG) were fabricated to create artificial blood phantom. Acoustic (speed and attenuation) and physical properties (density and viscosity) of BMF were tested at specific temperatures of range 22 °C, 25 °C, 35 °C, 36 °C, and 37 °C using ultrasound signals.<br /> <b>Results</b>: At center frequency of 5 MHz, pulse-echo allows to acoustical (speed and attenuation) and physical (density and viscosity) values to be linearly decreased with increasing of temperature. The difference in values of speed, attenuation, density, and viscosity was nuance (±0.01, ±0.001, ±0.005, and ±0.151), respectively.<br /> <b>Conclusions</b>: Temperature test of range 22C^o-37C^o have nuance influence (±0.01, ±0.001, ±0.005, and ±0.151) on acoustical and physical properties when BMF phantom of special material of PG and PEG was used. This nuance influence may be taken in account in quality assurance of ultrasound imaging system.