<99m>^Tc-Sn-Colloid肝シンチグラムComputer自動診断の試み : び慢性肝疾患の鑑別

概要

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Hepatic scintigrams using <99m>^Tc-compounds are now routinely performed. In. this study, automated computerized pattern characterizations of right lateral hepatic scintigrams using <99m>^Tc-Sn colloid were studied to extract characteristic indicators, which are effective for an automated computerized differential diagnosis. The program, deveopled by us, of the automated computerized pattern characterization and the automated computerized differential diagnosis can be performed without the aid of professional doctors' ability of pattern recognition. The right lateral hepatic scintigrams of fifty one cases, which are confirmedly diagnosed by biopsy, are applied as the training group. The results of the automated computerized differential diagnosis were as follows : Three cases were accurately diagnosed among 3 normal cases ; Three among 3 acute hepatitis ; Seven among 7 chronic inactive hepatitis ; Twenty among 22 chronic active hepatitis ; Sixteen among 16 liver cirrhosis. Only two cases of chronic active hepatitis are falselydiagnosed as chronic inactive hepatitis and as liver cirrhosis respectively. The over all accuracy rate was 96% in the training group. With this result, the automated computerized differential diagnosis of diffuse liver diseases is suggested to be possible, based on the hepatic scintigram.
神戸大学の論文