Abstract
After demonstrating that the application form 87Y-NTA-EDTMP-Ca is superior to the so far used citrate form of yttrium especially regarding the tumour/liver and tumour/bone ratios, the relationships between the concentrations of the components in the 87Y-NTA-EDTMP-Ca mixture and the 87Y biokinetics were investigated in tumour-bearing mice. The increase of the EDTMP and Ca2+ concentrations by several orders of magnitude caused no significant changes of tumour radioactivity but a clear radioactivity decrease in the liver, spleen and bone, respectively. The increase of the NTA concentration led also to a radioactivity decrease in all organs and tissues investigated. A significant radioactivity reduction in the tumour could be observed only after administration of rather high NTA amounts. Considerations of the tumour/background ratios depending on different compositions of the injection mixture showed the possibility of optimizing radionuclide biodistribution.
Translated title of the contribution | Studies on the biokinetics of tumour-affine yttrium preparations - Part 2 |
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Original language | German |
Pages (from-to) | 207-214 |
Number of pages | 8 |
Journal | NuklearMedizin |
Volume | 34 |
Issue number | 5 |
DOIs | |
State | Published - 1995 |
Externally published | Yes |