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英文誌(2004-)

Journal of Medical Ultrasonics

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1984 - Vol.11

Vol.11 No.05

Original Article(原著)

(0286 - 0294)

肝動脈内炭酸ガスMicrobubble注入法による肝腫瘍の超音波造影法(Enhanced Ultrasonography)の試み

Ultrasonic Contrast Enhancement of Liver Tumors by injecting Carbon Dioxide Microbubbles into Hepatic Artery (Enhanced Ultrasonography)

松田 康夫1, 薮内 以和夫2

Yasuo MATSUDA1, Iwao YABUUCHI2

1大手前病院外科, 2大手前病院内科

1Department of Surgery,Otemae General Hospital, 2Department of Internal Medicine,Otemae General Hospital

キーワード : Ultrasonography, Contrast agents, Carbon dioxide microbubbles, Liver tumor

Last one year and 10 months 23 patients who had various types of liver tumor histologically diagnosed by ultrasound-guided liver biopsies or surgeries were studied. The enhanced ultrasonography (EUS) by carbon dioxide microbubble injection into hepatic artery turned out useful.
Findings of EUS were classified into 4 types: 1) hyperechoic change, 2) isoechoic change, 3) hypoechoic change, and 4) marginal spotty hyperechoic change. The technique also identified rim sign in some cases.
Eleven out of 13 hepatocellular carcinoma nodules (85%) showed hyperechoic changes, while 7 of 9 (78%) cases of metastatic liver tumor showed hypoechoic changes (p This study also indicated that the EUS is superior to other image diagnoses in detectability of microlesions.