Journal of Korean Endocrine Society 1996;11(2):175-181.
Published online November 7, 2019.
Diagnostic Value of Thallium-201 Scan in The Thyroid Nodule.
Jeong Sik Moon, Kee Hyeon Kim, Chul Sung Park, Jae Haak Lee, Gyeong Heon Jeong, Sun Ho Kim, Jung Kyu Lim, Chin Duk Huh, Hyeng Suk Cho, Jang Shin Son
Abstract
To investigate diagnostic value of Thallium 201(T1-201) thymid scan in differentiating malignant nodule from benign, 135 patients with thyroid nodule were evaluated with Tl-201 thyroid scan, fine needle aspiration(FNA), clinical characteristics and laboratory data. Each had histological diagnosis after thyroidectomy. Tl-201 scan had a sensitivity of 67.3% and a specificity of 66.3% and FNA had sermitivity of 46.9% and specificity of 100% in predicting malignancy. As the size of thyroid nodule and age of patient incteases, diagnostic value of 11-201 thyroid scan was improved. In the thyroid nodules larger then 3cm, sensitivity, specificity and negative predictive value were 100%, 70% and 100%, reqectively. By cornbining Tl-201 throid scan and FNA, sensitivity had 91.8%. From the data we conclude that Tl-201 thyroid scan is valuable with adjuvant diagnostic method in differentiating malignant fmm benign thyroid nodule and treatment planning.
Key Words: Thallium-201 thyroid scan, Thyroid nodule


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