GAS-CONTAINING MICROCAPSULES USEFUL AS CONTRAST AGENTS FOR DIAGNOSTIC IMAGING

摘要

Gas-containing microcapsules useful as imaging agents, e.g. as ultrasound contrast agents, may be prepared by forming a dispersion of gas microbubbles in an aqueous medium comprising a solution or dispersion of a wall-forming material and subsequently inducing direct microencapsulation of these microbubbles by the wall-forming material.