Abstract
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Describe liver hemangiomas and their appearance by contrast-enhanced ultrasound (CEUS).
Identify malignant or benign liver lesions by looking at the delayed phase.
Describe the typical phases and washout after contrast injection in contrast-enhanced liver ultrasound.
Which contrast pattern was seen in hemangiomas in the arterial enhancement phase? Central Peripheral None Complete
How long was complete disappearance of contrast bubbles in liver tissue expected in the early contrast imaging era? 360 – 420 seconds 480 – 540 seconds 240 – 360 seconds 120 – 240 seconds
Which mechanical index was used for the research study described in the article? 0.01 0.05 0.03 0.07
Which was the only reliable finding in the study to diagnose a hemangioma with CEUS? Peripheral arterial enhancement Uneven enhancement of the liver Hypoechoic delayed contrast phase Central enhancement in the transit phase
Which percentage of hepatic hemangiomas showed washout from 240-540 seconds in the study? 60% 90% 70% 80%
How many patients were included in this research study? 10 15 20 5
Which liver lesion was included for each patient in this research study? Smallest hemangioma All hemangiomas Largest hemangioma Most worrisome hemangioma