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Abstracts 3) and two or three layered enhancement on dynamic phase and delayed peripheral dense enhancement and combined direct abdominal wall invasion (n ⫽ 2) and soap-bubble appearance (n ⫽ 2). The US findings were the following: poorly-defined margin (n ⫽ 7), welldefined margin (n ⫽ 5), homogeneous (n ⫽ 9) or heterogeneous low echogenicity (n ⫽ 3), peripheral or septal vascularity on color Doppler image (n ⫽ 3). Conclusions: Hepatic inflammatory pseudotumors are demonstrate mainly poorly-defined, low echogenicity, characteristic layered with delayed peripheral enhancement, but rarely show direct invasion of surrounding structure mimicking infiltrative mass and soap-bubble appearance mimicking classic abscess. 3023 Basics and technical tips in clinical applications of hepatic Doppler ultrasound Kim M-J, Kim PN, Ha HK, Lee M-G, Kim KW, Kim HJ, Lee SS, Park SH, Byun JH, Won HJ, Shin YM, Kim AY, Asan Medical Center, University of Ulsan College of Medicine, Korea Doppler US is an important diagnostic tool for detecting hepatic vascular abnormalities, especially following liver transplantation. Doppler US has an advantage over CT or other imaging modalities in that it is noninvasive, can be used intraoperatively or immediately postoperatively at the patient’s bedside, and free from radiation hazard. Doppler US is also sensitive to very slow flow and is not limited by optimal temporal window because it is a real-time examination. However, this examination is highly operator-dependent. For a proper evaluation of patient’s hemodynamic status, optimization of Doppler parameters and liberal use of spectral analysis will help prevent misinterpretation and may lead to improved diagnostic accuracy. Therefore, it is important for a radiologist to keep in mind a perspective on basic principle of Doppler phenomenon and tips in practical applications. In this exhibit, we present a comprehensive review of Doppler US emphasizing the basics and technical tips in clinical applications. 3024 Usefulness of Doppler US in the differentiation between alcoholic and hepatitis B virus-related cirrhosis Byun JN, Kim DH, Choi JY, Chosun University Hospital, Korea Objectives: To assess the usefulness of splenic artery resistive index (RIS) in differentiation between alcoholic cirrhosis and HBV-related cirrhosis. Methods: Three groups with 109 subjects (28 controls, 38 patients with HBV-related cirrhosis and 43 patients with alcoholic cirrhosis) were included in the study. Spleen size and RIS were compared in three groups. Spleen size, Child-Pugh score and RIS were compared in two cirrhotic groups. A ROC curve was used to determine the cut-off value of RIS for differentiation between two cirrhotic groups. Sensitivity, specificity, accuracy, positive predictive value and negative predictive value for prediction of alcoholic cirrhosis were calculated with the cut-off value of RIS. Results: Spleen size and RIS (0.58 ⫾ 0.05) in controls were less than those of two cirrhotic groups (p ⬍ 0.05). The mean RIS in patients with alcoholic cirrhosis was significantly higher than in patients with HBVrelated cirrhosis (0.72 ⫾ 0.07 versus 0.62 ⫾ 0.06, p ⬍ 0.01). For RIS ⱖ0.70, sensitivity, specificity, accuracy, positive predictive value and negative predictive value were 62.8%, 97.4%, 79.0%, 96.4% and 69.8%, respectively, for the detection of alcoholic cirrhosis. Conclusions: A reasonable lower limit of RIS for alcoholic cirrhosis was 0.70, which appeared to be a specific parameter for differentiation between alcoholic and hepatitis B virus-related cirrhosis.

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3025 Investigation of liver parenchymal flow using contrast-enhanced ultrasound in patients with acute hepatitis Fujita Y, Yoshizawa K, Watanabe M, Sasao K, Wakui N, Ikehara T, Shinohara M, Ishii K, Iida K, Sumino Y, Miki K, Toho University Omori Medical Center, Japan Objectives: This study was designed to assess the characteristics of peripheral blood flow within the liver parenchyma using Levovist in patients with acute hepatitis. Methods: Six normal controls (NC) and eight patients with acute hepatitis (AH) were enrolled for the study. Stimulated acoustic emission (SAE) imaging was compared between the liver parenchyma and the right kidney until 30 s at 3 s intervals after injection of Levovist. We defined the K-L time as the time between the maximal brightness of the kidney and the liver parenchyma after injection. And cardiac index (CI) and resistive index (RI) of the right hepatic artery and the interlobar artery of the right kidney were also measured. Results: In AH, the K-L time was significantly shorter than in NC. RI of the liver was significantly lower in AH than in NC. However, RI of kidney in AH was not significantly different from NC. And CI of AH was not significantly increased compared with NC. Conclusions: Our results suggest that shortening of the K-L time in AH does not correlate with cardiac output rather than arterialization of the liver due to decreased liver arterial resistance. 3026 Relation between indexes of portal vein, splenic vein and G/S staging in chronic viral hepatitis Ge H, Miao L, Wang J, Peking University Third Hospital, China Objectives: To discuss the relation between indexes of portal vein, splenic vein and G/S staging in chronic viral hepatitis. Methods: According to the pathology of needle biopsy, the status of hepatic fibrosis was graded as S0 ⬃ S4, and the inflammatory reaction in the liver was graded as Gl ⬃ G4. The discrepancy of indexes of portal vein and splenic vein was compared among G/S stagings. Results: The discrepancy of Drpv and MYFV was significant among G stagings, and the value of these indexes increased as the G staging went up. The discrepancy of Dpv, Drpv, Dspv, VsSPV and VmSPV was significant among S stagings. The value of Drpv, Dspv and MYFV increased as the patient’s condition became graver according the inflammatory activity of liver. The correlation coefficients between MVX and MYVX, MZVX, SPVX were 0.496, 0.377, 0.442 (and between PVFV and MYFV, MZFV, SPFV were 0.482,0.334,0.370, respectively. Conclusions: The changes of hemodynamic indexes of portal vein and splenic vein were related to G/S stagings. Dynamic changes of the velocity and the blood flow of portal vein and splenic vein can reflect the function of liver and the status of hepatic fibrosis. 3028 The usefulness of a novel noninvasive transient elastometry for assessment of liver fibrosis stage in chronic hepatitis C Takeda T, Nakaya M, Kaji M, Yasuda T, Nakayama Y, Torii Y, Sawada A, Yamashita M, Abo K, Takeda S, Asai H, Osaka City University, Graduate School of Medicine, Japan; Central Clinical Laboratory, Osaka City University Medical School Hospital, Japan; Osaka Kyoiku University, Japan Objectives: Staging of liver fibrosis is important for predicting the clinical course of chronic hepatitis C, including the incidence of hepatocellular carcinoma (HCC). Transient elastometry (FibroScan502;