MRI CONTRAST MEDIA RECOGNIZING MINOR ENVIRONMENTAL CHANGES
    1.
    发明公开
    MRI CONTRAST MEDIA RECOGNIZING MINOR ENVIRONMENTAL CHANGES 失效
    MRI-KONTRASTMITTELNZUR ERKENNUNG VON MINEURE

    公开(公告)号:EP1034796A1

    公开(公告)日:2000-09-13

    申请号:EP98907246.7

    申请日:1998-03-16

    IPC分类号: A61K49/00

    摘要: This relates to a contrast medium containing a complex of a gadolinium (Gd) type contrast agent and a polymer. More particularly, the contrast medium wherein the polymer capable of phase transit in response to environmental changes, particularly, pH, light or temperature, to develop a different water solubility, and a method for imaging by the use of this contrast medium. By binding a polymer responsive to microenvironmental changes with a Gd type MRI contrast agent, on-off switching of MRI imaging capability is enabled, wherein imaging occurs only on the target sites. Consequently, a highly specific MRI contrast medium can be obtained, whereby a highly specific MRI diagnosis is made possible, wherein only the target sites such as a tumor and a particular site are imaged and otherwise at the site where imaging is not necessary.

    摘要翻译: 这涉及含有钆(Gd)型造影剂和聚合物的复合物的造影剂。 更具体地,其中响应于环境变化,特别是pH,光或温度相变转移以形成不同水溶性的聚合物的造影剂,以及通过使用该造影剂进行成像的方法。 通过用Gd型MRI造影剂结合响应于微环境变化的聚合物,能够进行MRI成像能力的开 - 关切换,其中成像仅在靶位点上发生。 因此,可以获得高度特异性的MRI造影剂,由此可以进行高度特异性的MRI诊断,其中只有目标部位如肿瘤和特定部位成像,否则在不需要成像的部位进行成像。