| 摘要 |
<p>Tc-99m labeled antibody compositions and kits for oreparing them and using them for in vivo diagnostic purposes are provided. Cancer or tumor sites producing hCG or hCG-derivatives are detected by scintigraphy, after administering anti-hCG or anti-hCG derivatives, by administering an antibody composition specific to the anti-hCG or its derivatives, the said antibody composition being tagged with one of the labeling isotopes. To increase sensitivity of detection, extra sites for the labeled composition can be obtained by administering an unlabeled antibody composition specific to the anti-hCG or its derivatives, followed by a second antibody composition specific to the first antibody, the second antibody composition being tagged with one of the labeling isotopes. </p> |
