杤尾 人司¹, 冨田 周介², 工藤 正俊², 簑輪 和士¹, 島田 啓子¹, 豼オ逕ー 充生¹, 樫田 博史², 岡部 純弘², 三村 純², 豼オ逕ー 一美¹, 平佐 昌弘², 伊吹 康良², 小森 英司², 織野 彬雄², 森本 義人¹, 藤堂 彰男²

Hitoshi TOCHIO¹, Syusuke TOMITA², Masatoshi KUDO², Kazushi MINOWA¹, Keiko SHIMADA¹, Michio HAMADA¹, Hiroshi KASHIDA², Yoshihiro OKABE², Jun MIMURA², Kazumi HAMADA¹, Masahiro HIRASA², Yasuyoshi IBUKI², Hideshi KOMORI², Akio ORINO², Yoshito MORIMOTO¹, Akio TODO²

¹神戸市立中央市民病院臨床病理科腹部超音波室, ²神戸市立中央市民病院消化器センター内科

¹Section of Abdominal Ultrasound, Kobe City General Hospital, ²Division of Gastroenterology, Kobe City General Hospital

キーワード : Color Doppler, Hepatic tumor, Efferent blood flow

Thirteen hepatic tumors(6 metastatic liver tumors, 2 cholangiocellular carcinomas, 3 hemangiomas and 2 abscesses) in which efferent blood flow signals were detected by color Doppler imaging, were evaluated in this study. A total of 19 efferent color flow signals were detected in 13 hepatic tumors. Eighteen out of 19 signals showed a continuous waveform pattern and the remaining 1 signal showed a venous waveform pattern. Thirteen out of 19 efferent signals were shown to be connected to the portal vein branch and 2 signals were shown to be connected to the hepatic vein. Fourteen out of 19 efferent signals were associated with pulsatile waveform signals, which were considered to be feeding the artery adjacent to the efferent vessel. In conclusion, color Doppler flow imaging is useful in detecting efferent blood flow signals in hepatic tumors other than hepatocellular carcinoma, which is not readily available with any other modalities.