4Orrego H,Blendis L M,Crossley I R,et al.Correlation of intrahepatic pressure with collagen in the Disse space and hepatomegaly in humans and in the rat[J].Gastroenterology,1981,80(3):546-556.
5Albrecht T,Blomley M J,Cosgrove D O,et al.Non-invasive diagnosis of hepatic cirrhosis by transit-time analysis of an ultrasound contrast agent[J].Lancet,1999,353(9164):1579-1583.
6Lim A K,Taylor-Robinson S D,Patel N,et al.Hepatic vein transit times using a microbubble agent can predict disease severity non-invasively in patients with hepatitis C[J].Gut,2005,54(1):128-133.
7Hirota M,Kaneko T,Sugimoto H,et al.Intrahepatic circulatory time analysis of an ultrasound contrast agent in liver cirrhosis[J].Liver Int,2005,25(2):337-342.
8Blomley M J,Lim A K,Harvey C J,et al.Liver microbubble transit time compared with histology and Child-Pugh score in diffuse liver disease:a cross sectional study[J].Gut,2003,52(8):1188-1193.
9Kaneko T,Teshigawara O,Sugimoto H,et al.Signal intensity of the liver parenchyma in microbubble contrast agent in the late liver phase reflects advanced fibrosis of the liver[J].Liver Int,2005,25(2):288-293.
10Forsberg F,Goldberg B B,Liu J B,et al.Tissue-specific US contrast agent for evaluation of hepatic and splenic parenchyma[J].Radiology,1999,210(1):125-132.
4YuSC, HoS S, LauWY , et al. Treatment ofpyo- genic liver abscess: prospective randomized comparison of catheter drainage and needle aspiration[ J]. Hepatol- ogy, 2004, 39: 932-938.
5Tsai F C, Huang Y T, Chang L Y, et al. Pyogenie liver abscess as endemic disease, [ J ]. Emerg Infect Dis, 2008, 14 : 1592-1600.
6Ferraioli G, Garlasehelli A, Zanaboni D, et al. Percu- taneous and surgical treatment of pyogenic liver absces- ses: observation over a 21-year period in 148 patients [ J]. Dig Liver Dis, 2008, 40 : 690-696.
7Rajak C L, Gupta S, Jain S, et al. Percutaneous treatment of liver abscesses : needle aspiration versus catheter drain- age[J]. Am J Roentgenol, 1998, 170:1035-1039.
8Zerem E, Hadzic A. Sonographically guided percutane- ous catheter drainage versus needle aspiration in the management of pyogenic liver abscess [ J ]. Am J Roent- genol, 2007, 189:W138-142.