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Journal of Diagnostic Medical Sonography
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Contrast-Enhanced Hepatic Sonography

Daniel A. Merton, BS, RDMS

Jefferson Ultrasound Research and Education Institute, Thomas Jefferson University, 132 South 10th Street, Philadelphia, PA 19107 daniel.a.merton{at}mail.tju.edu

Hepatic applications of sonography include evaluation of the gallbladder and bile ducts, assessment of patients with suspected portal hypertension, and evaluation of focal and diffuse parenchymal liver disease. Ultrasound imaging (US) is generally a reliable and accurate method to diagnose a variety of hepatic abnormalities; however, in some cases there is a need to improve sonography's sensitivity and specificity, particularly for the detection and characterization of hepatic masses. Recent clinical experience has shown that the addition of a US contrast agent can enhance sonography's diagnostic capabilities including improving assessments of hepatic blood flow and the detection and characterization of hepatic neoplasms. One intravenously administered US contrast agent is now available in the United States, but its approved indication is limited to echocardiographic applications. Additional agents that have more diagnostic applications are likely to become available. Contrast-enhanced sonography may play a significant role in the diagnosis and management of patients with suspected hepatic abnormalities. This article describes two generic types of US contrast agents—vascular agents and tissue-specific agents—and includes a review of recent published reports on clinical applications of contrast-enhanced hepatic sonography.

Key Words: sonography • ultrasound contrast • liver imaging

Journal of Diagnostic Medical Sonography, Vol. 18, No. 1, 5-15 (2002)
DOI: 10.1177/875647930201800103
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