The present invention relates to the use of non-equivalent mobile protons belonging to NMR distinguishable steroisomers of a CEST agent in a ratiometric based CEST imaging procedure and to Lanthanide (III) complex compounds displaying at least two NMR-distinguishable steroisomers in solution useful as concentration independent CEST responsive agents.
本发明涉及在基于比率的CEST成像程序中利用属于NMR可区分的立体异构体的CEST试剂中的非等价移动质子的使用,以及在溶液中显示至少两个NMR可区分的立体异构体的
镧系(III)配合物化合物,可用作浓度独立的CEST响应试剂。