On October 24, 2017, in Chicago, the Society of Radiologists in Ultrasound convened a panel of specialists in contrast-enhanced ultrasound (CEUS) to arrive at a white paper regarding the use of CEUS in noncardiac applications in North America. Recommendations are based on analysis of the current literature and common practice strategies. They represent a reasonable approach to introduce the advantages of this safe and noninvasive technique for the benefit of our patients. Characterization of liver nodules with CEUS, as the approval indication worldwide, is the major focus of this endeavor. In addition, many off label uses are reviewed and literature supporting these indications provided.Key Points(1) Contrast-enhanced ultrasound (CEUS) allows cross-sectional imaging of the liver, kidneys and multiple other solid and hollow viscera, providing excellent characterization of identified focal mass lesions.(2) Performed with the injection of a microbubble contrast agent, CEUS provides a safe and readily available imaging technique which requires no ionizing radiation, making it appropriate for use in all ages, in those with renal insufficiency and when a portable examination is needed.(3) The CEUS can be considered in abdominal imaging whenever blood flow information is of value to diagnosis.(4) Dynamic real-time acquisition and the use of a purely intravascular contrast agent are the 2 most essential technical aspects of CEUS imaging which distinguish it from both computed tomography and magnetic resonance scan.
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