The Korean Journal of Nuclear Medicine (대한핵의학회지)

The Korean Society of Nuclear Medicine (대한핵의학회)
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Attenuation Correction in Measurements of Gastric Emptying Time

위배출시간 측정시 감쇠보정에 의한 효과

  • Koh, Eun-Mi (Department of Internal Medicine, College of Medicine, Kyung Hee University) ;
  • Kim, Deog-Yoon (Department of Internal Medicine, College of Medicine, Kyung Hee University) ;
  • Kim, Byung-Ho (Department of Internal Medicine, College of Medicine, Kyung Hee University) ;
  • Chang, Young-Woon (Department of Internal Medicine, College of Medicine, Kyung Hee University) ;
  • Kim, Kwang-Won (Department of Internal Medicine, College of Medicine, Kyung Hee University) ;
  • Chang, Rin (Department of Internal Medicine, College of Medicine, Kyung Hee University) ;
  • Choi, Young-Kil (Department of Internal Medicine, College of Medicine, Kyung Hee University) ;
  • Kim, Yong-Bong (Division of Nuclear Medicine, Kyung Hee Medical Center)
  • 고은미 (경희대학교 의과대학 내과학교실) ;
  • 김덕윤 (경희대학교 의과대학 내과학교실) ;
  • 김병호 (경희대학교 의과대학 내과학교실) ;
  • 장영운 (경희대학교 의과대학 내과학교실) ;
  • 김광원 (경희대학교 의과대학 내과학교실) ;
  • 장린 (경희대학교 의과대학 내과학교실) ;
  • 최영길 (경희대학교 의과대학 내과학교실) ;
  • 김용봉 (경희의료원 핵의학실)
  • Published : 1990.11.25
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Abstract

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 range of overestimation was wide (from -13% to 132%). Therefore, to evaluate the gastric empthying time accurately, methods of attenuation correction are needed.

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