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http://dx.doi.org/10.7742/jksr.2021.15.4.533

Two Measurement Considerations for Counting of Background Radioactivity using the Thigh during Thyroid Uptake Rate Test  

Do, Yongho (Department of Nuclear Medicine, Seoul National University Boramae Medical Center)
Cho, Youngkwon (Department of Radiological Science, Cheongju University)
Publication Information
Journal of the Korean Society of Radiology / v.15, no.4, 2021 , pp. 533-538 More about this Journal
Abstract
99mTcO4- is used to measure thyroid uptake. When measuring background radioactivity of the thigh, the distance between the detector and the thigh was 20 cm at a position 10 cm above the knee from the knee to the pelvis. At 25 cm, many hospitals are measuring at different distances. The purpose of this study was to study the difference in effectiveness in obtaining the thyroid uptake rate by quantitatively analyzing the uptake rate measurement at two distances. As a result, the average thyroid uptake rate measured at 20 cm in the thigh of 50 patients was 3.532±4.312%, and the average thyroid uptake rate measured at 25 cm was 3.680±4.304%. As a result of the thyroid uptake rate test result, the femoral background radioactivity value measured at a distance of 20 cm was relatively higher than the background radioactivity value measured at a distance of 25 cm, and as a result, the thyroid uptake rate was 0.148% lower.
Keywords
Pertechnetate; Thyroid Uptake; Background Radioactivity; Thigh;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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