대한핵의학회지 (1967년~2009년)
대한핵의학회지 1994;28(2)167~5
원저 : 두뇌혈류영상용 방사성의약품인 Ethylcystein Dimer ( ECD ) 의 합성과 99mTc 표지 및 뇌단일광자단층영상 구성 ( Syntheis and 99mTc labeling of Ethylcystein Dimer and Its Brain SPECT Image )
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Author 정재민(Jae Min Jeong),이명철(Myung Chul Lee),정수욱(Soo Wook Chung),이경한(Kyung Han Lee),조정혁(Jung Hyuck Cho),곽철은(Cheol Eun Kwark),이동수(Dong Soo Lee),정준기(June Key Chung),고창순(Chang Soon Koh),
Affiliation
Abstract

Et.hylcystein dimer(ECD) was synthesized by dimerization of L-thiazo1idine-4-carboxylic acid in liquid ammania with sodium metal and successive esterification in ethanolic solution of hydrogen chlorde. The purified product was labeled with Tc in the presence of sodium glucarate(pH=5.6) and stannous chloride. Best result was obtained from the preparation consisting of O.lmg ECD, 40 ul of 0.4M sodium glucarate (pH=5.6), and 20 ug of stannous chloride. The labeling efficiency was 90% with previous condition. The labeled 99mTc-ECD was stable at least for 3 hours in PBS(pH 7.4) at roorn temperature. About. 10mCi of 99mTc-ECD was inject.ed to normal volunteer, and SPECT image of brain was obtained by triple head camera 10 minutes after inectian. The image showed similar distribution of radioact.ivity in brain with that of HMPAO image.

Keyword Ethylcystein dimer, Brain SPECT
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