谷口 信行, 伊東 紘一, 鈴木 修, 川井 夫規子, 森 博昭, 中村 みちる

Nobuyuki TANIGUCHI, Kouichi ITOH, Osamu SUZUKI, Fukiko KAWAI, Hiroaki MORI, Michiru NAKAMURA

自治医科大学臨床病理学教室

Department of Clinical Pathology, Jichi Medical School

キーワード : Ultrasound, Histogran, Echo level, Fatty liver, Hepatorenal echo contrast

Hepatorenal echo contrast (HR-EC) is a useful ultrasonographic hallmark of fatty liver. The contrast is best quantified by measuring the difference in echo intensity between hepatic and renal regions that are located close to each other along a single beam. A difference of 7 dB or more clearly distinguished fatty livers from normal livers in this study. Contrary to the conventional difference at the same depth or intensity ratio, this parameter is not affected by either the echoic attenuation through surface structures or shifts in the gain.