Effect of iodinated contrast media on thyroid: a brief review
In parallel to the increased use of computed tomography, iodinated contrast agents are increasingly becoming a source of excess iodide. Iodinated contrast agents may induce thyroid dysfunction in exposed patients, especially in the presence of an underlying thyroid disease. Thus, an ordinary dose of the contrast used for the imaging, can induce hyper or hypothyroidism in a patient with subtle thyroid disease. This review will briefly discuss the physiology of iodine and the clinical evaluation of iodine induced thyroid dysfunction.
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