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Journal of Medical Ultrasonics

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1992 - Vol.19

Vol.19 No.07

Original Article(原著)

(0514 - 0518)

肝癌に対するエタノール注入療法におけるEnhanced ultrasonographyの有用性

Usefulness of Enhanced Ultrasonography for Ethanol Injection Therapy of Hepatocellular Carcinoma

白鹿 正通1, 松田 康雄2, 位藤 俊一2, 野村 康晴1, 籔内 以和夫1, 西岡 稔1

Masamichi SHIRAGA1, Yasuo MATSUDA2, Toshikazu ITOH2, Yasuharu NOMURA1, Iwao YABUUCHI1, Minoru NISHIOKA1

1大手前病院内科, 2大手前病院外科

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

キーワード : Enhanced ultrasonography, Ethanol injection therapy, Hepatocellular carcinoma

We studied ultrasonographic changes in 13 cases (14 nodules) of hepatocellular carcinoma treated by ethanol injection (EI). We performed plain ultrasonography (PU) and enhanced ultrasonography (EU) before and after EI on each nodule. All the nodules revealed hyperechoic change by EU before EL EU findings after EI were classified into three patterns; Pattern 1: Total hypoechoic change. (3 nodules) Pattern 2: Hypoechoic change with capsular hyperechoic change. (3 nodules) Pattern 3: Hypoechoic change with capsular and subcapsular hyperechoic change. (8 nodules) In a patient who showed pattern 3, during the enhancement of the tumor by microbubbles we added percutaneous ethanol injection (PEI), because the enhanced lesions were still considered viable. EU thus makes it possible to recognize residual cancers to be treated.