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KMID : 1039320230230010157
Journal of Liver Cancer
2023 Volume.23 No. 1 p.157 ~ p.165
Diagnostic performance of the 2022 KLCA-NCC criteria for hepatocellular carcinoma on magnetic resonance imaging with extracellular contrast and hepatobiliary agents: comparison with the 2018 KLCA-NCC criteria
Yoon Ja-Kyung

Lee Sun-Young
Hwang Jeong-Ah
Lee Ji-Eun
Kim Seung-Seob
Kim Myeong-Jin
Abstract
Background/Aim: This study aimed to determine the diagnostic performance of 2022 Korean Liver Cancer Association-National Cancer Center (KLCA-NCC) imaging criteria compared with the 2018 KLCA-NCC for hepatocellular carcinoma (HCC) in high-risk patients using magnetic resonance imaging (MRI).

Methods: This retrospective study included 415 treatment-naive patients (152 patients who underwent extracellular contrast agent [ECA]-MRI and 263 who underwent hepatobiliary agent [HBA]-MRI; 535 lesions, including 412 HCCs) with a high risk of HCC who underwent contrast-enhanced MRI. Two readers evaluated all lesions according to the 2018 and 2022 KLCA-NCC imaging diagnostic criteria, and the per-lesion diagnostic performances were compared.

Results: In ¡°definite¡± HCC category of both 2018 and 2022 KLCA-NCC, HBA-MRI showed a significantly higher sensitivity for the diagnosis of HCC than ECA-MRI (77.0% vs. 64.3%, P=0.006) without a significant difference in specificity (94.7% vs. 95.7%, P=0.801). On ECA-MRI, ¡°definite¡± or ¡°probable¡± HCC categories of the 2022 KLCA-NCC had significantly higher sensitivity than those of the 2018 KLCA-NCC (85.3% vs. 78.3%, P =0.002) with identical specificity (93.6%). On HBA-MRI, the sensitivity and specificity of ¡°definite¡± or ¡°probable¡± HCC categories of both 2018 and 2022 KLCA-NCC were not significantly different (83.3% vs. 83.6%, P>0.999 and 92.1% vs. 90.8%, P>0.999, respectively).

Conclusions: In ¡°definite¡± HCC category of both 2018 and 2022 KLCA-NCC, HBA-MRI provides better sensitivity than ECA-MRI without compromising specificity. On ECA-MRI, ¡°definite¡± or ¡°probable¡± HCC categories of the 2022 KLCA-NCC may improve sensitivity in the diagnosis of HCC compared with the 2018 KLCA-NCC.
KEYWORD
Hepatocellular carcinoma, Diagnosis, Magnetic resonance imaging, Contrast media
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