However, the radioactive iodine uptake ( nuclear thyroid uptake test ) may still be helpful in the diagnosis and management of amiodarone-induced hyperthyroidism.
12.
This test procedure typically involves two tests performed in connection with each other : an iodine uptake test and a scan ( imaging ) with a gamma camera.
13.
Goitrogens are substances ( whether in drugs, chemicals, or foods ) that disrupt the production of thyroid hormones by interfering with iodine uptake in the thyroid gland.
14.
Perchlorate ions, a common water contaminant in the USA due to the aerospace industry, has been shown to reduce iodine uptake and thus is classified as a goitrogen.
15.
However, iodine-131 may also be used for medicinal purposes in radiation therapy for this very reason, when tissue destruction is desired after iodine uptake by the tissue.
16.
Due to the unique properties of iodine uptake in these cells, iodine 123 ( I-123 ) may be used to image MV-NIS-infected tumor cells.
17.
For differentiated thyroid carcinoma, strategies are evolving to use selected types of targeted therapy to increase radioactive iodine uptake in papillary thyroid carcinomas that have lost the ability to concentrate iodide.
18.
The half-life of approximately 13.13 h ( hours ) is ideal for the 24-h ( hour ) iodine uptake test and 123 I has other advantages for diagnostic imaging thyroid tissue and thyroid cancer metastasis.
19.
However, when the average perchlorate absorption in perchlorate plant workers subjected to the highest exposure has been estimated as approximately 0.5 mg / kg-day, as in the above paragraph, a 67 % reduction of iodine uptake would be expected.
