Når SonoVue er bragt i opløsning, indeholder 1 ml af opløsningen 8 mikroliter sulphurhexafluorid gas som opslæmmede "mikrobobler".
When made up into a solution, 1 ml of SonoVue contains 8 microlitres of sulphur hexafluoride gas as ‘ microbubbles ’ in suspension in a liquid.