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Liver Imaging Reporting and Data System Category on Magnetic Resonance Imaging Predicts Recurrence of Hepatocellular Carcinoma After Liver Transplantation Within the Milan Criteria: A Multicenter Study

Authors
 Sunyoung Lee  ;  Kyoung Won Kim  ;  Woo Kyoung Jeong  ;  So Yeong Jeong  ;  Jeong Ah Hwang  ;  Jin Sub Choi  ;  Sung-Gyu Lee  ;  Jae-Won Joh 
Citation
 ANNALS OF SURGICAL ONCOLOGY, Vol.28(11) : 6782-6789, 2021-10 
Journal Title
ANNALS OF SURGICAL ONCOLOGY
ISSN
 1068-9265 
Issue Date
2021-10
MeSH
Carcinoma, Hepatocellular* / diagnostic imaging ; Carcinoma, Hepatocellular* / surgery ; Contrast Media ; Humans ; Liver Neoplasms* / diagnostic imaging ; Liver Neoplasms* / surgery ; Liver Transplantation* ; Magnetic Resonance Imaging ; Neoplasm Recurrence, Local / diagnostic imaging ; Neoplasm Recurrence, Local / surgery ; Retrospective Studies
Abstract
Background: This study was designed to investigate the association between Liver Imaging Reporting and Data System (LI-RADS) category and recurrence of hepatocellular carcinoma (HCC) after primary liver transplantation (LT) within the Milan criteria.

Methods: This multicenter, retrospective study included 140 recipients who underwent living donor LT (LDLT) for treatment-naïve HCC and pretransplant contrast-enhanced magnetic resonance imaging (MRI) between 2009 and 2013. LI-RADS categories were assigned using LI-RADS version 2018. Recurrence-free survival (RFS) and associated factors were evaluated using Cox proportional hazards regression analysis, Kaplan-Meier analysis, and log-rank test. Histological grading and microvascular invasion (MVI) were analyzed on the pathologic examinations of explanted livers.

Results: The overall 1-, 3-, 5-, and 7-year RFS rates were 95.6%, 92.6%, 90.2%, and 89.3%, respectively. In the multivariable analysis, independent predictors of recurrence included HCCs categorized as LR-M (hazard ratio [HR], 18.68; 95% confidence interval [CI], 5.79-60.23; P < 0.001) and the largest tumor size of ≥ 3 cm on MRI (HR, 4.18; 95% CI, 1.42-12.37; P = 0.010). The 5-year RFS rate was significantly lower in patients with HCCs categorized as LR-M than in those with HCCs categorized as LR-5 or 4 (LR-5/4) (36.9% vs. 95.8%, respectively; P < 0.001). HCCs categorized as LR-M exhibited significantly more MVI than HCCs categorized as LR-5/4 (57.1% vs. 17.5%, respectively; P = 0.002).

Conclusions: Patients with HCCs categorized as LR-M using LI-RADS version 2018 may have a worse prognosis after primary LT within the Milan criteria than those with HCCs categorized as LR-5/4.
Full Text
https://link.springer.com/article/10.1245%2Fs10434-021-09772-8
DOI
10.1245/s10434-021-09772-8
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Surgery (외과학교실) > 1. Journal Papers
Yonsei Authors
Lee, Sunyoung(이선영) ORCID logo https://orcid.org/0000-0002-6893-3136
Choi, Jin Sub(최진섭)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/185446
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