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김광원(Kwang Won Kim),최영길(Young Kil Choi),고은미(Eun Mi Koh),김덕윤(Deog Yoon Kim),김병호(Byung Ho Kim),장영운(Young Woon Chang),장린(Rin Chang),김용봉(Yong Bong Kim) 대한핵의학회 1990 핵의학 분자영상 Vol.24 No.2
N/A Scintigraphic measurement of gastric emptying time has been reported to be influenced by the variation in depth of radionuclide within the stomach. In order to determine the effect of tissue attenuation in the measurement of gastric emptying time, 15 gastric emptying studies were performed with Tc-99m labeled egg sandwiches. Single anterior detector method overestimated the T1/2 by an average of 13% than geometric mean method and the range of overestimation was wide (from -13% to +32%). Therefore, to evaluate the gastric empthying time accurately, methods of attenuation correction are needed.
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201T1/99mTc 감영스캔으로 부갑상선종괴를 얼마나 찾을 수 있는가 ?
김광원(Kwang Won Kim),최영길(Young Kil Choi),김덕윤(Deog Yoon Kim),양형인(Hyung In Yang) 대한핵의학회 1994 핵의학 분자영상 Vol.28 No.1
We studied 65 patients with hypercalcemia who had beed performed 201T1/99mTc subtraction scan, 21 of them were confirmed as parathyroid tumor (19 adenoma, 2 carcinoma). The diagnostic sensitivity of 201T1/99mTc subtraction scan for detecting parathyroid mass was 90.5%, specificity was 97.6%, ultrasonography was 80.6%, 58.8%, respectively. The causes of two false negative cases were relatively small size (1.5*1*8cm) compared to remainig cases and poor thallium uptake due to cystic necrosis of parathyroid adenorna. The one false positive case was non-functioning thyroid nodule. 21T1/99mTc subtraetion scan was simple, effective diagnostic tool and superior to ultrasonography for evaluating the parathyroid mass with high sensitivity and specificity.
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