Consideration of Thyroid Weight Estimation Methods Using Thyroid Scintigraphy

IR Web Site

Bibliographic Information

Other Title
  • 甲状腺シンチグラフィによる甲状腺重量推定方法の検討
  • コウジョウセン シンチグラフィ ニ ヨル コウジョウセン ジュウリョウ スイテイ ホウホウ ノ ケントウ

Search this article

Abstract

In radioiodine therapy for Graves’ disease, it is necessary to estimate the thyroid weight. Four methods, including the Allen-Goodwin, Ohkubo, and Himanka methods, which use thyroid scintigraphy, and a method that involves taking a lateral view of the thyroid and using an equation that substitutes the elliptical body’s volume （elliptical method），were used to determine the optimal cut-off value for estimating the known syringe volume as the estimated weight. A comparison was made between the estimated weight obtained using SPECT/CT and that obtained using each methods. As a result, the optimal cutoff value in the Himanka method had less variation than the Allen-Goodwin and Ohkubo methods. The optimal cut-off value in the elliptical method was constant at 30 % except for 5 ml. If an appropriate cut-off value is selected for estimating weight based on thyroid scintigraphy, weight estimation can be performed similarly to SPECT/CT and additional radiation exposure from CT.

Journal

Keywords

Details 詳細情報について

Report a problem

Back to top