Experimental Method for Microbubbles Dynamics Monitoring and Radius Sizing

Fouan, Damien
Achaoui, Younes
Payan, Cedric
Mensah, Serge

Open link

Publication date

December 2015

DOI

10.1016/j.phpro.2015.08.255

Publisher

Published by Elsevier B.V.

Abstract

AbstractRationale and aim: Within the context of divers’ decompression illness prevention, ultrasonic detection and sizing of circulating microbubbles in blood is of great interest. In order to be representative of the divers gas tension level (supersaturation) and thus, to optimize decompression stages, the measurements (made in the right ventricle region) should be performed during a short period of time (ventricle filling <20ms), efficient to detect a broad range of bubbles’ radii population (radius from 20 to 200 _m) and harmless (Mechanical Index MI<0.3).Materials and methodsBased on a bi-frequency ultrasound excitation, the purpose of our method is to measure the relative and the absolute microbubble size variations. Because of our re...