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KMID : 0614619940260050850
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Korean Journal of Gastroenterology
1994 Volume.26 No. 5 p.850 ~ p.858
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Infrared Spectroscopic Analysis of Gallstones Compared with Visual Classification
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Abstract
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Among the various analytic methods of gallstones, infrared spectroscopy has gained popularity because of its benefits. Authors analysed 109 cases of gallstone by qualitative infrared spectroscopy and compared them with classification by visual
inspection. Coincidence rate-between visual and infrared spectroscopic classification was 78% in four boardmen of general surgery and 64.9% in six residents. There was no difference between two groups(p>0.05). The stones classified as all types
of
cholesterol stone by visual inspection. Sometimes it was difficult to differentiate calcium bilirubinate stone from black pigment stone by both visual and infrared spectroscopic classification, and it was not possible to differentiate calcium
palmitate
stone from calcium bilirubinate stone by visual inspection. While al stones containing calcium phosphate by infrared spectroscopy were interpreted as black pigment stone by visual inspection, stones containing calcium carbonate were interpreted
as
several types of gallstone.
In conclusion, gallstone analysis by visual inspection alone is not perfect, so it is necessary to study and educate accurate interpretation of gallstone by visual inspection and other analysing methods of gallstone including infrared
spectroscopy.(Korean J Gastroenterol 1994 ; 26 : 850-859)
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