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Correlation between SonoVue enhancement in CEUS, HCC differentiation and HCC diameter: analysis of 130 patients with hepatocellular carcinoma (HCC).

AbstractPURPOSE:
The aim of the study was to characterize SonoVue enhancement in hepatocellular carcinoma in correlation to both lesion diameter and histological differentiation of the lesion.
MATERIALS AND METHODS:
In a prospective study 130 patients (72 male, 58 female, 62 +/- 10 years) with HCC lesions detected by B-mode sonography were examined. After injection of 1.2 - 2.4 ml SonoVue, HCC lesions were examined continuously for up to 5 min using "low MI" sonography.
RESULTS:
Arterial hypervascularization was found in 72 % of the HCC lesions without correlation to the lesion diameter or histological grading, when analyzed for the total group. However, the analysis of the G 1 subgroup showed significant correlation between lesion diameter and arterial hypervascularization. Arterial hypervascularization was found in 95 % of the G 1 lesions > 3 cm but in only 43 % of the G 1 lesions < 3 cm (p < 0.001). In contrast, analysis of the remaining HCC lesions (without G 1) showed arterial hypervascularization in 69 % of the lesions < 3 cm and in 72 % of the lesions > 3 cm (n. s.) without correlation to the diameter. In the late phase in the G 1 subgroup, hypoechoic demarcation was found in 95 % of the G 1 lesions > 3 cm, but in only 64 % of the G 1 lesions < 3 cm (p < 0.001). In contrast, in the less differentiated HCC lesions (without G 1), hypoechoic demarcation was found in 91 % (HCC > 3 cm) and in 82 % (HCC < 3 cm) of the lesions (n. s.).
CONCLUSION:
In well-differentiated HCCs (G1) hyperechoic enhancement in the arterial phase and hypoechoic demarcation in the late phase correlate to the diameter.
AuthorsA von Herbay, C Vogt, J Westendorff, D Häussinger, M Gregor
JournalUltraschall in der Medizin (Stuttgart, Germany : 1980) (Ultraschall Med) Vol. 30 Issue 6 Pg. 544-50 (Dec 2009) ISSN: 1438-8782 [Electronic] Germany
PMID19998208 (Publication Type: Journal Article)
CopyrightGeorg Thieme Verlag KG Stuttgart, New York.
Chemical References
  • Contrast Media
  • Phospholipids
  • contrast agent BR1
  • Sulfur Hexafluoride
Topics
  • Aged
  • Carcinoma, Hepatocellular (diagnostic imaging, pathology)
  • Cell Differentiation
  • Contrast Media
  • Diagnosis, Differential
  • Female
  • Humans
  • Image Enhancement
  • Liver (diagnostic imaging, pathology)
  • Liver Neoplasms (diagnostic imaging, pathology)
  • Male
  • Middle Aged
  • Phospholipids
  • Prospective Studies
  • Sensitivity and Specificity
  • Sulfur Hexafluoride
  • Ultrasonography

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