Thyroid nodule other imaging findings: Difference between revisions
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=== Radionuclide thyroid scan/scintigraphy === | === Radionuclide thyroid scan/scintigraphy === | ||
using either technetium 99 mTc pertechnetate or 123I | |||
Thyroid scintigraphy is useful to determine the functional status of a nodule. It is specifically indicated in patients with thyroid nodule and a low serum TSH to determine if the nodule is autonomously functioning. | Thyroid scintigraphy is useful to determine the functional status of a nodule. It is specifically indicated in patients with thyroid nodule and a low serum TSH to determine if the nodule is autonomously functioning. | ||
Revision as of 16:05, 10 August 2017
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Thyroid nodule other imaging findings On the Web |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Other Imaging Studies
Radionuclide thyroid scan/scintigraphy
using either technetium 99 mTc pertechnetate or 123I
Thyroid scintigraphy is useful to determine the functional status of a nodule. It is specifically indicated in patients with thyroid nodule and a low serum TSH to determine if the nodule is autonomously functioning.
In scintigraphy, iodine radioisotopes (more commonly used; usually 123I) or technetium pertechnetate (99Tc), are injected to the patient and then the radioisotope uptake time by the thyroid gland is measured.4406304 16910877
- High radioisotopes uptake=Hot nodule:
- Hyperfunctioning nodules
- Low radioisotopes uptake=Cold nodule:
- Most benign nodules
- Most malignant thyroid nodules