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정규원(Kyu Won Chung),선희식(Hee Sik Sun),정인식(In Sik Chung),양진모(Jin Mo Yang),심상인(Sang In Shim),최명규(Myung Gyu Choi),한현복(Hyun Bok Han),정홍량(Hong Ryang Jeong),이재학(Jae Hak Lee),강창석(Chang Suck Kang) 대한소화기학회 1990 대한소화기학회지 Vol.22 No.3
Recent advent of non-surgical treatment for gallstones desires accurate in vivo analysis of chemical composition to select optimal candidate. As preliminary work, we undertook in vitro CT examimation of the surgically removed 53 gallstones and compared CT pattern with chemical compsotion. Those results were correlated with in vitro lithotripsy of the gallstones. The CT appearances were classified as follows: Laminated (43%), dense (32%), rimmed (11%), isodense (8%) and faint (6%). Dense pattern contains high calcium content. As CT density increased, calcium content increased, but cholesterol content decreased proportionslly. The number of shock waves to breakdown the gallstone ]ess than 2 mm in size, has increased as stone volume and cholesterol content increases but did not have any correlation with calcium content level. As a result, the CT exmination is very sensitive to detect small amount of calcium content in gallstones and CT pattern and density of the gallstones are well correlated with chemical compsotion and therefore in vivo CT exmination for ESWL candidate is desirable.