2Albrecht T, Blomley MJ, Cosgrove DO, Taylor-Robinson SD,Jayaram V, Eckersley R, Urbank A, Buffer-Barnes J, Patel N. Noninvasive diagnosis of hepatic cirrhosis by transit-time analysis of an ultrasound contrast agent. Lancet 1999; 353:1579-1583.
3Bang N, Nielsen MB, Rasmussen AN, Osterhammel PA, Pedersen JF. Hepatic vein transit time of an ultrasound contrast agent: simplified procedure using pulse inversion imaging. Br J Radiol 2001;74:752-755.
4Kim T, Murakami T, Takahashi S, Tsuda K, Tomoda K, Narumi Y, Oi H, Sakon M, Nakamura H. Optimal phases of dynamic CT for detecting hepatocellular carcinoma: evaluation of unenhanced and triple-phase images. Abdom Imaging 1999; 24:473-480.
5Kudo M. Morphological diagnosis of hepatocellular carcinoma:special emphasis on intranodular hemodynamic imaging.Hepatogastroenterology 1998; 45(Suppl 3): 1226-1231.
6Koito K, Namieno T, Morita K. Differential diagnosis of small hepatocellular carcinoma and adenomatous hyperplasia with power Doppler sonography. AJR Am J Roentgenol 1998; 170: 157-161.
7Brancatelli G, Federle MP, Grazioli L, Blachar A, Peterson MS,Thaete L. Focal nodular hyperplasia: CT findings with emphasis on multiphasic helical CT in 78 patients. Radiology 2001; 219:61-68.
8Kudo M. Imaging diagnosis of hepatocellular carcinoma and premalignant/borderline lesions. Semin Liver Dis 1999; 19:297-309.
9Kim-TK, Choi BI, Han JK, Hong HS, Park SH, Moon SG. Hepatic tumors: contrast agent-enhancement patterns with pulse-inversion harmonic US. Radiology 2000; 216:411-417.
10Ding H, Kudo M, Onda H, Suetomi Y, Minami Y, Maekawa K. Hepatocellular carcinoma: depiction of tumor parenchymal flow with intermittent harmonic power Doppler US during the early arterial phase in dual-display mode. Radiology 2001; 220:349-356.
