1KOITO K,NAMIETO T,MORITA K.Differential diagnosis of hepatocellular carcinoma and adenomatous hyperplasia with power Doppler sonography[J].Am J Roentgenol,1998,170(1):157-161.
2IMAMURA M,SHIRATORI Y,SHIINA S,et al.Power Doppler sonography for hepatocellular carcinoma : factors affecting power Doppler signals of the tumors[J].Liver,1998,18(6):427-433.
4QUAIA E,BERTOLOTTO M,CALDERAN L,et al.US characterization of focal hepatic lesions with intermittent high-acoustic-power mode and contrast material[J].Acad Radiol,2003,10(7):739-750.
5PENNISI F,FARINA R,POLITI G,et al.Hepatic focal lesions: role of color Doppler ultrasonography with contrast media[J].Radiol Med(Torino),1998,96(6):579-587.
6SCHNEIDER M,ARDITI M,BARRAU M B,et al.BRI: a new ultrasonographic contrast agent based on sulfur hexafluoride-filled microbubbles[J].Invest Radiol,1995,30(8):451-457.
7BASILIXO R,BLOMLEY M J,HARVEY C J,et al.Which continuous US scanning mode is optimal for the detection of vascularity in liver lesions when enhanced with a second generation contrast agent?[J].Eur Radiol,2002,41(3):184-191.
8KIM A Y,CHOI B I,KIM T K,et al.Comparison of contrast-enhanced fundamental imaging,second-harmonic imaging,and pulse-inversion harmonic imaging[J].Invest Radiol,2001,36(10):582-588.
9MARUYAMA H,MATSUTANI S,SATO G,et al.Enhanced color imaging small hepatocellular carcinoma[J].Abdom Imaging,2000,25(2):164-169.
10TANAKA S,KITAMRA T,YOSHIOKA F,et al.Effectiveness of galactose based intravenous contrast medium on colour Doppler sonography of deeply located hepatocellular carcinoma[J].Ultrasound Med Biol,1995,21(2):157-160.
