Abstract
Objectives
To compare the performance of current guidelines applicable to the diagnosis of hepatocellular carcinomas (HCCs) using gadoxetic acid–enhanced magnetic resonance imaging (MRI).
Methods
Two hundred and forty-one hepatic lesions (149 HCCs, six other malignancies, 86 benign lesions) in 177 patients at risk of HCC without a history of previous treatment for hepatic malignancy in a tertiary center were retrospectively reviewed. Either histopathology results or long-term (> 24 months) follow-up images were used as a standard of reference. All lesions were categorized according to the Liver Imaging Reporting and Data System (LI-RADS), European Association for the Study of the Liver (EASL), Asian Pacific Association for the Study of the Liver (APASL), and Korean Liver Cancer Study Group-National Cancer Center (KLCSG-NCC) guidelines. The sensitivity and specificity thereof were assessed using a generalized estimation equation.
Results
For gadoxetic acid–enhanced MRI, LI-RADS (95%, 95% confidence interval [CI] 88–98) and EASL (94%, 95% CI 86–97) yielded the highest specificity, while EASL yielded the lowest sensitivity (54% [95% CI 46–62]). APASL yielded the highest sensitivity (91% [95% CI 86–95]) with the lowest specificity (78% [95% CI 69–86]). KLCSG-NCC showed balanced sensitivity (85% [79–90]) and specificity (88% [95% CI 80–93]). Differences were more prominent in small nodules between 1 and 2 cm.
Conclusion
The diagnostic performance of current guidelines for HCC on gadoxetic acid–enhanced MRI was significantly different, and a potential inverse association between sensitivity and specificity was observed.
Key Points
• EASL and LI-RADS yielded the highest specificity with the lowest sensitivity, whereas APASL yielded the highest sensitivity with the lowest specificity.
• Differences in the diagnostic performances of guidelines were prominent in small nodules between 1 and 2 cm.
• Additional evaluation of CT findings improved the diagnostic sensitivity and accuracy of EASL and LI-RADS. Although doing so decreased specificity, it remained above 89–90%.
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Abbreviations
- AASLD:
-
American Association for the Study of Liver Disease
- APASL:
-
Asian Pacific Association for the Study of the Liver
- CEUS:
-
Contrast-enhanced ultrasonography
- cHCC-CC:
-
Combined hepatocellular carcinoma-cholangiocarcinoma
- CI:
-
Confidence interval
- CT:
-
Computed tomography
- EASL:
-
European Association for the Study of the Liver
- ECA:
-
Extracellular contrast agent
- HCC:
-
Hepatocellular carcinoma
- KLCSG-NCC:
-
Korean Liver Cancer Study Group-National Cancer Center
- LI-RADS:
-
Liver Imaging Reporting and Data System
- MRI:
-
Magnetic resonance imaging
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Funding
This study has received funding by the National Health Insurance Service Ilsan Hospital grant NHIMC 2018CR091.
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The scientific guarantor of this publication is Mi-Suk Park.
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The authors of this manuscript declare no relationships with any companies, whose products or services may be related to the subject matter of the article.
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No complex statistical methods were necessary for this paper.
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Written informed consent was waived by the Institutional Review Board.
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Institutional Review Board approval was obtained.
Study subjects or cohorts overlap
All study subjects have been previously reported in Abdom Radiol (2019;44:3078–3088). However, the objective of the present study, comparison of diagnostic performance of current guidelines for HCC, is different from the previous study.
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• retrospective
• diagnostic or prognostic study
• performed at one institution
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Hwang, S.H., Park, MS., Park, S. et al. Comparison of the current guidelines for diagnosing hepatocellular carcinoma using gadoxetic acid–enhanced magnetic resonance imaging. Eur Radiol 31, 4492–4503 (2021). https://doi.org/10.1007/s00330-020-07468-3
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DOI: https://doi.org/10.1007/s00330-020-07468-3