Update on Gastrointestinal Radiopharmaceuticals and Dosimetry Estimates

Dosimetry Calculations of Radiopharmaceuticals

Abstract. The goal of this project is to determine the absorbed dose of radiation to a patient using 99mTc-MAA as a tracer for a lung scan using the MIRD formula accounting only for the radiation dose contributed by the target organ. The radiation dose for other organs to the target organ is considered negligible as the uptake of 99mTc-MAA from other organs is less than 1%. In addition to calcu...

Radiopharmaceuticals for nuclear cardiology: radiation dosimetry, uncertainties, and risk.

UNLABELLED The technical basis for the dose estimates for several radiopharmaceuticals used in nuclear cardiology is reviewed, and cases in which uncertainty has been encountered in the dosimetry of an agent are discussed. Also discussed is the issue of uncertainties in radiation dose estimates and how to compare the relative risks of studies. METHODS Radiation dose estimates (organ absorbed ...

Update on Gastrointestinal Imaging

Breast milk excretion of radiopharmaceuticals: mechanisms, findings, and radiation dosimetry.

The excretion of radiopharmaceuticals in breast milk is studied to understand excretion mechanisms and to determine recommended breast feeding interruption times for many compounds based on the radiation absorbed dose estimated. A literature review is summarized, providing information on breast milk excretion of many radiopharmaceuticals, including the observed fractions of administered activit...

[Update on the use of PET radiopharmaceuticals in inflammatory disease].

The use of molecular imaging with PET/CT technology using different radiotracers, especially the (18)F-FDG is currently spreading beyond the area of oncology, the most interest being placed on inflammatory and infectious diseases. This article presents a review of its contribution in different inflammatory conditions in the context of structural and conventional nuclear medicine imaging. Specia...