The biodistribution of 188Re-DTPA-DG in nude mice bearing MCF-7 mammary cancer cell shows that tumor-to-muscle ratio (T/NT) at 12 h post intravenous injection is 12.76. 188Re-DTPA-DG shows excellent tumor targeting.

• 188Re-DTPA-DG在荷瘤裸鼠体内的分布结果显示；其在肿瘤中的摄取较高；静脉注射188Re-DTPA-DG后12h；肿瘤与周围肌肉的摄取比值(T/NT)高达12.；76；显示出良好的肿瘤靶向性。