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    • 10. 发明申请
    • GAS-FILLED MICROVESICLES COMPOSITION FOR CONTRAST IMAGING
    • 用于对比成像的气体填充微晶组合物
    • WO2006018433A1
    • 2006-02-23
    • PCT/EP2005/054041
    • 2005-08-17
    • BRACCO RESEARCH SABUSSAT, PhilippeFRINKING, PeterGUILLOT, ChristianSCHNEIDER, Michel
    • BUSSAT, PhilippeFRINKING, PeterGUILLOT, ChristianSCHNEIDER, Michel
    • A61K49/22
    • A61K49/223
    • The present invention relates to a new composition comprising gas-filled microvesicles for contrast imaging which are particularly suitable for providing an effective echo response to at least two selected ultrasound waves having different frequencies. Said composition preferably comprises at least two different preparations of gas-filled microvesicles having respective peaks of non-linear echographic response differing by at least 2 MHz to each other, and preferably have respective size distributions with different median sizes. In particular, said preparations preferably have size distributions with respective D V50 values differing from each other by at least 0.5 μm, more preferably at least 1.0 μm. Alternatively, said composition has a volume size distribution showing a value of Bowley skewness of 0.16 or higher. According to a preferred embodiment, at least 95% of the total volume of gas contained in said microvesicles, calculated on the population of microvesicles up to a diameter of 10 μm, is contained in microvesicles having a diameter of 8 micron or less.
    • 本发明涉及一种新的组合物,其包括用于造影成像的充气微泡,其特别适合于向具有不同频率的至少两个选定的超声波提供有效的回波响应。 所述组合物优选包含气体填充微泡的至少两种不同制剂,其具有彼此相差至少2MHz的非线性回波影响响应的各个峰,并且优选具有不同中值大小的相应尺寸分布。 特别地,所述制剂优选具有各自的D