iodine-131

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iodine-131

[′ī·ə‚dīn ¦wən¦thərd·ē′wən]
(nuclear physics)
A radioactive, artificial isotope of iodine, mass number 131; its half-life is 8 days with beta and gamma radiation; used in medical and industrial radioactive tracer work; moderately radiotoxic.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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The researcher also revealed that her team was unable to find a significant association between the increased risk of cancer mortality and the absorption of radioactive iodine by various organs in the previous analysis of the study that was published nearly 20 years ago.
And he said that more serious cases of hyperthyroidism were more likely to receive radioactive iodine. That means "selection bias" was at play -- in other words, sicker people tended to get the treatment, and for a variety of reasons these patients may have been at higher cancer risk in general.
RAI dose was calculated clinically by consultant nuclear physician on the basis of size of thyroid nodule, thyroid function test and radioactive iodine uptake on thyroid scan.
This review has identified existing Guidelines or Procedure Standards (the current preferred nomenclature) for Radioactive Iodine Therapy of Differentiated Thyroid Carcinoma.
Currently patients have surgery to remove the entire thyroid gland and a few weeks later they take a capsule containing radioactive iodine.
Oral potassium iodide is most effective when administered from up to two days before and up to eight hours after an actual intake of radioactive iodine. (13)
There are other centers in New York City and throughout the country that are licensed to treat cats with radioactive iodine," says Dr.
Patients who were younger and healthier were more likely to receive radioactive iodine, but African American patients and those without health insurance were less likely to receive radioactive iodine.
Among the recommendations that could lead to a change in practice is the concept that antithyroid drugs could be used more often in place of radioactive iodine in Graves' disease, and a recommendation that patients with Graves' hyperthyroidism and active moderate to severe or sight-threatening ophthalmopathy should be treated with methimazole or surgery, said Dr.
The guidelines address in detail initial evaluation and management of thyrotoxicosis; management of Graves' hyperthyroidism using radioactive iodine, antithyroid drugs, or surgery; management of toxic multinodular goiter or toxic adenoma using radioactive iodine or surgery; Graves" disease in children, adolescents, or pregnant patients; subclinical hyperthyroidism; hyperthyroidism in patients with Graves' ophthalmopathy; and management of other miscellaneous causes of thyrotoxicosis.
The thyroid gland will absorb any radioactive iodine leading to a build-up within it.
The company expects its measurements of radioactive iodine and cesium found in water and air at the stricken Fukushima Daiichi nuclear plant to be accurate.