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Biomedical subjects

V J Sodd

Publications and source records attributed to V J Sodd.

40 records · Page 3Linked to original sources

Absorbed dose comparison: positron emitters 11C, 13N, and 15O versus gamma-ray emitters.

Absorbed doses were calculated or taken from the literature for various compounds of 11C, 13N, and 15O, and compared to those of presently gamma-ray-emitting nuclear medicine radiopharmaceuticals. As a rule of thumb, the doses per millicurie of the injectable positron-emitting compounds are of the same order of magnitude as the dose per millicurie of 99mTc compounds. The absorbed doses from the injectable positron emitters are nearly one or more orders of magnitude lower on a per millicurie basis than those from the other injectable gamma emitters that were investigated.

Carbon Radioisotopes↗

Measurements of the distribution of technetium-99m sulfur colloid and technetium-99m HEDP in normal humans.

Technetium-99m sulfur colloid and technetium-99m hydroxyethylidene diphosphonate (HEDP) are two radiopharmaceuticals that have been widely used in nuclear medicine. Radiation dose estimates for both materials have been published in the literature and are found in the package inserts of the commercial kits. However, these estimates were made without the benefit of quantitative human organ uptake data. Estimates of absorbed radiation dose to the kidneys differ by nearly a factor of 6 between the two calculations for HEDP. The results of this study are in agreement with the lower previous estimate. Other than that one exception, agreement of the previous estimates with the measurements reported here is surprisingly good.

Adult↗