Method for enhancing the echogenicity and decreasing the attenuation of microencapsulated gases

摘要

A method for optimising the echogenicity of microparticles encapsulating a gas comprising determining the range of wall thickness of the microparticles resulting in the highest amounts of total returned power as a function of the material forming the microparticles and the gas to be encapsulated, and producing microparticles with a wall thickness in the range resulting in the highest levels of total returned power. The microparticles may be used in a variety of ultrasound imaging applications.