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3D versus 2D contrast-enhanced sonography in the evaluation of therapeutic response of hepatocellular carcinoma after locoregional therapies: preliminary findings

  • ABDOMINAL RADIOLOGY
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Abstract

Objective

To investigate diagnostic performance of 3D contrast-enhanced ultrasound (CEUS) compared with 2D CEUS in the assessment of therapeutic response of hepatocellular carcinoma (HCC) treated with locoregional therapies (LRT).

Materials and methods

Twenty-three consecutive patients (13 men and 10 women; mean age 65.5 years) with 23 HCCs (size range 1.2–7.2 cm; mean size 2.9 ± 1.4 cm) treated by means of radiofrequency ablation (RFA n = 9), transarterial chemoembolization (TACE n = 8), combined RFA and TACE (n = 3), percutaneous alcoholization (n = 2), and wedge resection (n = 1) underwent 2D and 3D CEUS 1 month (30 ± 2 days) after treatment. Magnetic resonance (n = 17) and computed tomography (n = 6) acted as standard of reference (SOR). Two radiologists assessed the absence (complete response CR) or presence (residual tumor RT) of any nodular arterially enhancing area within or along the margin of the treated HCC.

Results

Both 2D and 3D CEUS observed CR in 10/23 (43.5 %) HCCs and RT in 11/23 (47.8 %) HCCs. In 1/23 (4.3 %) HCC, RT was documented by SOR and 2D CEUS, but it was not appreciable at 3D CEUS. In 1/23 (4.3 %) HCC, the presence of peripheral residual tumor was suspected by both 2D and 3D CEUS, but it was not confirmed by SOR. No statistically significant difference between 2D and 3D CEUS in depicting either CR or RT was found (p > 0.05). Sensitivity, specificity, positive and negative predictive values, and accuracy of 3D CEUS were 91.7 % [95 % confidence interval (CI) 0.760–1.073], 90.9 % (95 % CI 0.739–1.079), 91.7, 90.9, and 91.3 %, respectively.

Conclusion

2D and 3D CEUS provided similar diagnostic performance in the assessment of therapeutic response of HCC treated with LRT.

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Conflict of interest

The authors declare no conflict of interest.

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This article does not contain any studies with human participants or animals performed by any of the authors.

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Authors and Affiliations

  1. Department of Radiology, University of Palermo, Via Del Vespro 127, 90129, Palermo, Italy

    Tommaso Vincenzo Bartolotta, Adele Taibbi, Domenica Matranga, Massimo Midiri & Roberto Lagalla

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  1. Tommaso Vincenzo Bartolotta
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  2. Adele Taibbi
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  3. Domenica Matranga
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  4. Massimo Midiri
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  5. Roberto Lagalla
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Correspondence to Tommaso Vincenzo Bartolotta.

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Bartolotta, T.V., Taibbi, A., Matranga, D. et al. 3D versus 2D contrast-enhanced sonography in the evaluation of therapeutic response of hepatocellular carcinoma after locoregional therapies: preliminary findings. Radiol med 120, 695–704 (2015). https://doi.org/10.1007/s11547-015-0514-4

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  • DOI: https://doi.org/10.1007/s11547-015-0514-4

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