Study of a pressure measurement method by analyzing the ultrasound Doppler image of microbubbles

Abstract

The progress of the ultrasound diagnostic device enables to diagnose fetal diseases. It is reported that the postnatal disability can be prevented by treating these disease during fetal period. Though it is required to measure the fetus biological information after the treatment, the measurement is difficult because the fetus is inside the mother. In this study, we proposed a biological information measurement method based on pressure measurement by analyzing the ultrasound Doppler images of pressure sensing module containing microbubbles. Additionally, we evaluated the feasibility of the pressure measurement method by simulating a pressure sensing module being placed under pressure by changing the inner pressure of a tube enclosing microbubbles. The result shows that the number of pixels in the high brightness area increases linearly with the increase of the pressure in the range of 0 kPa to 20 kPa.