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Intracavitary therapy with radioactive yttrium: results of animal experiments.

The distribution of radioactive yttrium was studied in guinea-pigs. The injection of 1,5 mci of radioactive yttrium leads to a mean surface dose of 20 Gy which can be obtained within 5 days. An extrapolation of these findings to the peritoneal surface of human beings should lead to a corresponding dose of 64 mci.