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Comparison of ^sup 123^I and ^sup 131^I for Whole-Body Imaging in Thyroid Cancer
- Article from:
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The Journal of Nuclear Medicine
- Article date:
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May 1, 2002
- Author:
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Copyright informationCopyright Society of Nuclear Medicine May 2002. Provided by ProQuest LLC. (Hide copyright information)
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We compared the diagnostic sensitivities of ^sup 123^I and ^sup 131^I whole-body imaging in differentiated thyroid cancer. Methods: Twelve thyroidectomized patients (3 previously treated with ^sup 131^I) were studied. After a period of thyroid hormone withdrawal, whole-body imaging was performed approximately 24 and 72-96 h after administration of 74-185 MBq (2-5 mCi) ^sup 131^I and 111-185 MBq (3-5 mCi) ^sup 131^I, respectively. Results: Both ^sup 123^I and ^sup 131^I revealed residual thyroid tissue, present in 9 patients. ^sup 131^I detected msetastases in 5 studies of 4 patients. In 4 of 5 studies, ^sup 123^I missed metastases shown by ^sup 131^I in 8 body regions including the neck, ...
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