radioiodine


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to radioiodine: radioiodine uptake

radioiodine

 [ra″de-o-i´o-dīn]
any radioactive isotope of iodine; of the nine isotopes, iodine 123, iodine 125, and iodine 131 are the most commonly used in diagnosis and treatment of benign and malignant diseases of the thyroid gland and in scintiscans of organs such as the lung, liver, and kidney. Called also radioactive iodine.
radioiodine uptake test one of the most common thyroid function tests; a known quantity of radioiodine is administered and 24 hours later the per cent is calculated that has been absorbed by the thyroid gland. Patients who have recently been exposed to iodine compounds, such as in dietary supplements, contrast media, medications, or antiseptics may not be good candidates for this test.

ra·di·o·i·o·dine

(rā'dē-ō-ī'ō-dīn),
A radioactive isotope of iodine, for example, 123I.

radioiodine

/ra·dio·io·dine/ (-i´o-dīn) any radioactive isotope of iodine, particularly 123I, 125I, and 131I; used in diagnosis and treatment of thyroid disease and in scintiscanning.

radioiodine

(rā′dē-ō-ī′ə-dīn′)
n.
A radioactive isotope of iodine widely used as a tracer in medical diagnosis.

radioiodine

[rā′dē·ō·ī′ədīn]

radioactive iodine

Any of the radionuclides of iodine, the most commonly used of which is beta- and gamma-emitting 131I, with a half-life of 8 days. It is used clinically as an implant for treating thyroid cancer and hyperactivity, and for scintigraphy of other organs. The gamma-emitting 125I has a half-life of 59.4 days and has been used in bioassays, nuclear medicine imaging and in radiation oncology as brachytherapy to treat prostate cancer and brain tumours.

radioiodine

any radioactive isotope of iodine.

radioiodine therapy
see iodine-131.
radioiodine uptake t
131I or 125I are used by oral or intravenous administration as a test of thyroidal function.
References in periodicals archive ?
This might be attributable to the contribution of the subm andibular and sublingual glands to saliva composition, because these glands appear to be less affected by radioiodine therapy.
Women who have no thyroid reserve because of thyroid surgery or radioiodine, or both, require more thyroxine during pregnancy.
Radioiodine treatment is worth investigating as an alternative therapy for treatment-resistant tumors or for patients who cannot have radiotherapy or chemotherapy because of severe side effects.
It is important to emphasize that prior to the 2009 revision of the guidelines, many of these low-risk patients, in their follow-ups, would have received the benefit of radioiodine ablation therapy and diagnostic whole-body imaging.
As local tumor control was achieved postoperatively, it is hoped that subsequent radioiodine ablation will improve the patient's survival as suggested in a 2003 study.
Quality of life and cost-effectiveness assessment of radioiodine ablation strategies in patients with thyroid cancer: results from the randomized phase IIIESTIMABL trial," Journal of Clinical Oncology, vol.
Surgery, selective postoperative radioiodine and thyroid stimulating hormone (TSH) suppressive therapy are the primary treatment modalities for DTC.
Patients who have been unsuccessful with anti-thyroid drugs or are deemed unsuitable for radioiodine therapy are offered a surgical solution.
Radioiodine (iodine 131) is used in radiation therapy for thyroid cancer patients after surgery, to destroy any remaining cancer cells and to lower the risk of a recurrence of the disease, it said.
Radioiodine ablation of post-surgical thyroid remnants after preparation with recombinant human TSH: why, how and when.
She was treated successfully with radioiodine ablation.