ABSTRACT
Due to high iodine loading from iodinated contrast media, the thyroid uptake of common radiopharmaceuticals ([99mTc]NaTcO4 and [123I]NaI) can be influenced up to 2 mo after administration. In such cases, and generally when differential diagnosis between productive and destructive thyrotoxicosis is necessary, [99mTc]Tc-sestamibi scintigraphy could be an option. This case highlights the role of [99mTc]Tc-sestamibi in the evaluation of thyrotoxicosis in a patient with a blocked thyroid gland as a result of stable iodine saturation.
Subject(s)
Iodine , Thyrotoxicosis , Humans , Radiopharmaceuticals , Technetium Tc 99m Sestamibi , Organotechnetium Compounds , NitrilesABSTRACT
Medical uses of radiation have grown rapidly over the past decade in Hellas. A part of these concern diagnostic Nuclear Medicine procedures. Effective dose which is the risk weighted effective whole-body dose provides an indicator of potential detriment from ionizing radiation. The purpose of this review is to provide a data base of effective doses for nuclear medicine procedures in Hellas which are determined by National and European protocols and laws. Average effective dose for most nuclear medicine procedures in Hellas varies between 0.3 and 25 mSv which can be compared to the annual effective dose from background radiation of about 2.8 mSv.
