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Published in: European Radiology 10/2018

01-10-2018 | Gastrointestinal

Quantitative correlation between uptake of Gd-BOPTA on hepatobiliary phase and tumor molecular features in patients with benign hepatocellular lesions

Authors: Edouard Reizine, Giuliana Amaddeo, Frederic Pigneur, Laurence Baranes, François Legou, Sebastien Mulé, Benhalima Zegai, Vincent Roche, Alexis Laurent, Alain Rahmouni, Julien Calderaro, Alain Luciani

Published in: European Radiology | Issue 10/2018

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Abstract

Purpose

The purpose of our study was to correlate the quantitative analysis of benign hepatocellular tumor uptake on delayed hepatobiliary phase (HBP) imaging with the quantitative level of OATP expression.

Methods

This single-center retrospective study, which took place between September 2009 and March 2015, included 20 consecutive patients with a proven pathologic and immunohistochemical (IHC) diagnosis of FNH or HCA, including quantification of the OATP expression. The patients underwent Gd-BOPTA-enhancement MRI, including an HBP. The analysis of HBP uptake was performed using the liver-to-lesion contrast enhancement ratio (LLCER). Mean LLCER and OATP expressions were compared between FNH and HCA, and the expression of OATP was correlated with the LLCER value.

Results

Of the 23 benign hepatocellular tumors, 9 (39%) were FNH and 14 (61%) were HCA, including 6 inflammatory, 2 HNF1a inactivated, 3 β-catenin-mutated and 3 unclassified HCAs. On HBP, 100% of the FNH appeared hyper- or isointense, and 79% of the adenomas appeared hypointense. The mean OATP expression of FNH (46.67 ± 26.58%) was significantly higher than that of HCA (22.14 ± 30.74%) (p = 0.0273), and the mean LLCER of FNH (10.66 ± 7.403%) was significantly higher than that of HCA (-13.5 ± 12.25%) (p < 0.0001). The mean LLCER of β-catenin-mutated HCA was significantly higher than that of other HCAs (p = 0.011). Significant correlation was found between the OATP expression and LLCER values (r = 0.661; p = 0.001).

Conclusion

In benign hepatocellular tumors, the quantitative analysis of hepatobiliary contrast agent uptake on HBP is correlated with the level of OATP expression and could be used as an imaging biomarker of the molecular background of HCA and FNH.

Key Points

• Gd-BOPTA uptake on HBP correlates with the OATP level in benign hepatocellular tumors
• FNH and β-catenin-mutated HCA showed an increased lesion-to-liver contrast enhancement ratio (LLCER)
• Increased LLCER may be explained by activation of the Wnt β-catenin pathway
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Metadata
Title
Quantitative correlation between uptake of Gd-BOPTA on hepatobiliary phase and tumor molecular features in patients with benign hepatocellular lesions
Authors
Edouard Reizine
Giuliana Amaddeo
Frederic Pigneur
Laurence Baranes
François Legou
Sebastien Mulé
Benhalima Zegai
Vincent Roche
Alexis Laurent
Alain Rahmouni
Julien Calderaro
Alain Luciani
Publication date
01-10-2018
Publisher
Springer Berlin Heidelberg
Published in
European Radiology / Issue 10/2018
Print ISSN: 0938-7994
Electronic ISSN: 1432-1084
DOI
https://doi.org/10.1007/s00330-018-5438-7

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