1. Intraarterial Contrast-Enhanced Ultrasonography is the Final Goal of Intravenous Contrast-Enhanced Ultrasonography; 2. Vascularity and Hemodynamics of Liver Tumors as Seen with Intraarterial Contrast-Enhanced Ultrasonography; 3. Intranodular Hemodynamic Transition Associated with Dedifferentiation of Hepatocellular Carcinoma; 4. Hepatocellular Carcinoma and the Role of Blood Flow Imaging in Clinical Practice; 5. Properties of Levovist; 6. Comparative Pharmacokinetic Behavior of Levovist with Water-Soluble Contrast Agents; 7.Various Contrast-Enhanced Imaging Modes After Administration of Levovist; 8. Glossary of Harmonic Imaging Terms; 9. Principles of Harmonic Imaging; 10. Harmonic Power Doppler and Other New Techniques on ALOKA ProSound Series; 11. Contrast Imaging (Toshiba PowerVision 8000 and Aplio); 12. Pulse Inversion Harmonic Imaging (ATL HDI 5000); 13. Agent Detection Imaging (Acuson Sequoia 512); 14. Coded Harmonic Angio (GE LOGIQ 700 EXPERT Series); 15. Differential Diagnosis of Various Hepatic Tumors by Harmonic Imaging; 16. The Roles of Contrast-Enhanced Harmonic Imaging in Treating Hepatocellular Carcinoma; 17. Postvascular Phase Sweep Scan Using Liver-Specific Imaging; 18. The Role of Contrast-Enhanced Ultrasonography in the Diagnosis and Treatment of Hepatic Tumors (Summary); 19. Application of Contrast-Enhanced Harmonic Imaging in Biliary and Pancreatic Tumors; 20. Update and Direction of Ultrasonic Contrast Agents.