田野 茂夫¹, 上野 規男¹, 冨山 剛¹, 佐々木 厚博¹, 木村 健¹, 佐藤 武史², 平間 信²

Shigeo TANO¹, Norio UENO¹, Takeshi TOMIYAMA¹, Atsuhiro SASAKI¹, Ken KIMURA¹, Takeshi SATO², Makoto HIRAMA²

¹自治医科大学消化器内科, ²東芝医用機器技術研究所

¹Department of Gartroenterology, Jichi Medical School, ²Medical Engineering Laboratory, Toshiba Corporation

キーワード : 3-dimensional, Color Doppler, Tumor blood flow

We attempted to visualize tumor blood flow by overlaying the tumor outline on 3-D color Doppler images. The equipment used was the Toshiba SSA-270A with a probe (3.75 MHz) installed on the 3-D position detecting arm. A hepatocellular carcinoma with a diameter of 40 mm was discovered. 3-D color Doppler images reveal the blood flow around the tumor; however, it is difficult to distinguish between the intra- and the extra-tumor blood flow without observing the tumor's outline. By overlaying the outline onto 3-D blood flow images, we can clearly distinguish between the intra- and the extra-tumor blood flow. This method is considered to be useful for observing the relationship between a tumor and the surrounding vessels.