Ultrasonic detection of bubbles with doppler flow transducers

摘要: Abstract Doppler blood-flow transducers have been used to detect gas bubbles in the circulatory system during hyperbaric decompression. This paper describes briefly theoretical acoustic scattering properties of and then various experimental procedures which determine these flow transducers. The capabilities limitations for detection were investigated by studying from both solid objects air moving through field. In vivo experiments indicate that it would be difficult obtain any correlation between output bubble size.