Abstract
Contrast-enhanced ultrasonography is a relatively new imaging technique that can be successfully used for the diagnosis and surveillance of liver lesions, among other important roles. The real-time examination possibility and its excellent safety profile represent unique features that make this procedure a highly valuable one. As this technique becomes more widely available, it is of extreme importance that specialists in the field of hepatology understand its clinical applications and capabilities, as well as its disadvantages and limitations. This chapter aims to provide a basic understanding of contrast-enhanced ultrasonography, focusing on its applications in liver imaging.
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Self Study
Self Study
1.1 Questions
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1.
Which statement is true:
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(a)
The arterial phase of CEUS lasts from the first 10 s to 30–45 s.
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(b)
The portal phase of CEUS last from 30–45 s to 120 s.
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(c)
The late phase of CEUS last from 120 s to 4–6 min, until the gas bubbles are fully eliminated.
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(d)
CEUS should not be performed in patients with renal impairment.
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(a)
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2.
Which statement is true:
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(a)
Hepatocellular carcinoma appears hyperenhanced in the arterial phase of CEUS.
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(b)
Malignant thrombus in the portal vein appears hyperenhanced in the arterial phase of CEUS.
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(c)
Liver metastases typically have rapid wash-out and appear hypoenhanced in the portal phase.
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(d)
Liver hemangiomas have nodular peripheral enhancement during arterial phase, with centripetal progression during portal venous and late phases.
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(a)
1.2 Answers
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1.
Which statement is true:
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(a)
CORRECT
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(b)
CORRECT
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(c)
CORRECT
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(d)
FALSE
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(a)
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2.
Which statement is true:
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(a)
CORRECT
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(b)
CORRECT
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(c)
CORRECT
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(d)
CORRECT
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(a)
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Iliescu, L. (2020). Dynamic Contrast-Enhanced Ultrasonography of the Liver. In: Radu-Ionita, F., Pyrsopoulos, N., Jinga, M., Tintoiu, I., Sun, Z., Bontas, E. (eds) Liver Diseases. Springer, Cham. https://doi.org/10.1007/978-3-030-24432-3_44
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DOI: https://doi.org/10.1007/978-3-030-24432-3_44
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