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Contrast-enhanced ultrasound Liver Imaging Reporting and Data System (LI-RADS) in hepatocellular carcinoma ≤ 5cm: biological characteristics and patient outcomes
Liver Cancer ( IF 13.8 ) Pub Date : 2023-01-24 , DOI: 10.1159/000527498
Wen-Jia Cai 1 , Minghua Ying 2 , Rong-Qin Zheng 3 , Jintang Liao 4 , Baoming Luo 5 , Lina Tang 6 , Wen Cheng 7 , Hong Yang 8 , An Wei 9 , Yilin Yang 10 , Hui Wang 11 , Yan-Chun Luo 1 , Cun Liu 12 , Hui Zhong 13 , Qi Yang 14 , Jie Yu 1 , Ping Liang 1
Affiliation  

Introduction: The present study aimed to evaluate the influence of biological characteristics of hepatocellular carcinoma (HCC) on the Liver Imaging Reporting and Data System (LI-RADS) v2017 category of contrast-enhanced ultrasound (CEUS) in patients with high risk and compare the outcomes among different categories after radical resection. Methods: Between June 2017 and December 2020, standardized CEUS data of liver nodules were prospectively collected from multiple centers across China. We conducted a retrospective analysis of the prospectively collected data on HCCs measuring no more than 5 cm as diagnosed by pathology. LI-RADS categories were assigned after thorough evaluation of CEUS features. Then, CEUS LI-RADS categories and major features were compared in different differentiation, Ki-67 and microvascular invasion (MVI) statuses. Differences in recurrence-free survival (RFS) among different LI- RADS categories were further analyzed. Results: A total of 293 HCC nodules in 293 patients were included. This study revealed significant differences in the CEUS LI-RADS category of HCCs among differentiation (p < 0.001) and levels of Ki-67 (p = 0.01), and that poor differentiation (32.7% in LR-M, 12% in LR-5 and 6.2% in LR-4) (p < 0.001) and high level of Ki-67 (median value 30%) were more frequently classified into the LR-M category, whereas well differentiation (37.5% in LR-4, 15.1% in LR-5 and 11.5% in LR-M) and low levels of Ki-67 (median value 11%) were more frequently classified into the LR-4 category. No significant differences were found between MVI and CEUS LI-RADS categories (p > 0.05). With a median follow-up of 23 months, HCCs assigned to different CEUS LI-RADS classes showed no significant differences in RFS after resection. Conclusions: Biological characteristics of HCC, including differentiation and level of Ki-67 expression could influence major features of CEUS and impact the CEUS LI-RADS category. HCCs in different CEUS LI-RADS categories showed no significant differences in RFS after resection.
更新日期:2023-01-24
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