{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,24]],"date-time":"2026-06-24T08:27:31Z","timestamp":1782289651024,"version":"3.54.5"},"reference-count":32,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2020,2,26]],"date-time":"2020-02-26T00:00:00Z","timestamp":1582675200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J Med Imag Rad Onc"],"published-print":{"date-parts":[[2020,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Introduction<\/jats:title><jats:p>Radioisotope methods have shown to be useful in the non\u2010invasive diagnosis of thyroid nodules over the past years. The present prospective study aims to evaluate the efficacy of gamma imaging using single and dual tracer using Tc\u201099m pertechnetate and Tc\u201099m tetrofosmin for evaluation and management of thyroid nodules.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Dynamic (perfusion) imaging was performed after injecting 148\u2013185\u00a0MBq (4\u20135\u00a0mCi) of Tc\u201099m pertechnetate followed by static imaging. A second, dynamic (perfusion) imaging study within same week was performed with 296\u2013370MBq (8\u201310mCi) of Tc\u201099m tetrofosmin on same group of patients followed by early and delayed images. Results of radionuclide perfusion scan from both studies were compared qualitatively with postsurgical histopathology or fine needle aspiration cytology (FNAC).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Total 65 nodules in 50 patients were included in the study. With single tracer, the specificity and accuracy of Tc\u201099m pertechnetate was 23% and 45% and for Tc\u201099m tetrofosmin scan was 40% and 49%. When dual tracers were evaluated for the same group of patients, the specificity was 56% and accuracy was 55%.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Dual Tracer technique with Tc<jats:bold>\u2010<\/jats:bold>99m pertechnetate and Tc\u201099m tetrofosmin could be helpful in selecting nodules need surgical intervention. This technique can be used for convenient and rapid diagnostic evaluation of thyroid nodules non\u2010invasively. We suggest a combination of fine needle aspiration biopsy and dual use of Tc<jats:bold>\u2010<\/jats:bold>99m\u2010pertechnetate and Tc\u201099m\u2010tetrofosmin as a routine diagnostic approach to thyroid nodules.<\/jats:p><\/jats:sec>","DOI":"10.1111\/1754-9485.13006","type":"journal-article","created":{"date-parts":[[2020,2,27]],"date-time":"2020-02-27T07:16:52Z","timestamp":1582787812000},"page":"189-196","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Efficacy of dual use of Tc\u201099m\u2010pertechnetate and Tc\u201099m\u2010tetrofosmin scintigraphy for the assessment of thyroid nodules"],"prefix":"10.1111","volume":"64","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4742-2051","authenticated-orcid":false,"given":"Nisha","family":"Bhatia","sequence":"first","affiliation":[{"name":"Centre of Nuclear Medicine Panjab University Chandigarh India"},{"name":"Department of Nuclear Medicine Cancer Research 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