1Quaia E,Calliada F,Bertolotto M,et al.Characterization of focal liver lesions with contrast-specific US modes and a sulfur hexafluoride-filled microbubble contrast agent:diagnostic performance and confidence[J].Radiology,2004,232:420-430.
2Leen E,Anderson JR,Robertson J,et al.Doppler index perfusion in the detection of hepatic metastases secondary to gastric carcinoma[J].Am J Surg,1997,173:99-120.
3Blomley MJK,Albrecht T,Cosgrove DO,et al.Improved imaging of liver metastases using stimulated acoustic emission in the late enhancement phase of ultrasound contrast agent SHU 508:early experience[J].Radiology,1999,209:409-416.
4Hohmann J,Albrecht T,Hoffmann CW,et al.Ultrasonographic detection of focal lesion:increased sensitivity and specificity with microbubble contrast agents[J].Eur J Radiol,2003,13:147-159.
5Albrecht T,Hoffmann CW,Schettler S,et al.Improved detection of liver metastases with phase inversion ultrasound during the late phase of levovist[J].Acad Radiol,2002,9(suppl1):236-239.
9Yang CC,Chen CH,Yeh YH.Ehanced color flows in hepatic tumors[J].Hepatogastroenterology,2002,49:1506-1509.
10Quaia E,Bertolotto M,Forgacs B,et al.Detection of liver metastases by conventional ultrasound and helical CT in 160 patients[J].Eur J Radiol,2003,13:475-483.
5[2]McGahan JP, Dodd GD Ⅲ. Radiofrequency ablation of the liver: current status[J]. AJR, 2001, 176(1):3-16.
6[3]Lim HK, Choi D, Lee WJ, et al. Hepatocellular carcinoma treated with percutaneous radio-frequency ablation: evaluation with follow-up multiphase helical CT[J]. Radiology, 2001, 221(2):447-454.
7[4]Choi D, Lim HK, Kim SH, et al. Assessment of therapeutic response in hepatocellular carcinoma treated with percutaneous radio frequency ablation: comparison of multiphase helical computed tomography and power Doppler ultrasonography with a microbubble contrast agent[J]. J Ultrasound Med, 2002, 21(4):391-401.
8[5]Tanaka K, Inous S, Numata K, et al. Color Doppler sonography of hepatocellular carcinoma before and after treatment by transcatheter arterial embolization[J]. AJR, 1992, 158(3):541-546.
9[6]Ding H, Kudo M, Onda H, et al. Contrast-enhanced subtraction harmonic sonography for evaluating treatment response in patients with hepatocellular carcinoma[J]. AJR, 2001, 176(3):661-666.
10[7]Frinking PJ, Bouakaz A, Kirkhorn J, et al. Ultrasound contrast imaging: current and new potential methods[J]. Ultrasound Med Biol, 2000, 26(6):965-975.
