CONTRAST AGENTS COMPRISING AN AZEOTROPIC MIXTURE OF TWO GASES FOR ULTRASOUND INVESTIGATIONS

摘要

A contrast agent for use in diagnostic studies, particularly ultrasound imaging, comprising a dispersion in an injectable aqueous medium of a biocompatible azeotropic mixture which is in gaseous form at 37 DEG C, at least one component of said mixture being a halocarbon having a molecular weight of at least 100.