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分析１０例肾癌（９例直径＞６ｃｍ）的彩色多普勒超声的基本特征，血流类型以彩球型为主，散点型次之；肿瘤内出现动脉＋静脉两种血流信号；较大肿瘤以动脉高速者居多；肿瘤血管流速大于同侧肾动脉流速．
The basic features of color Doppler ultrasound in 10 cases of renal cell carcinoma (9 cases> 6 cm in diameter) were analyzed. The main types of blood flow were color ball type and scattered type followed by arterial + venous blood flow signals. Larger tumors are mostly arterial high-speed; tumor blood flow velocity is greater than ipsilateral renal artery flow velocity.