Background: Current guidelines do not indicate any comprehensive management of hepatic hypervascular incidentalomas (HVIs) discovered in hepatocellular carcinoma (HCC) patients during intra-arterial therapies (IATs). This study aims to evaluate the prognostic value of HVIs detected on per-interventional cone beam computed tomography (CBCT) during IAT for HCC in patients waiting for liver transplantation (LT). Material and methods: In this retrospective single-institutional study, all liver-transplanted HCC patients between January 2014 and December 2018 who received transarterial chemoembolization (TACE) or radioembolization (TARE) before LT were included. The number of ≥10 mm HCCs diagnosed on contrast-enhanced pre-interventional imaging (PII) was compared with that detected on per-interventional CBCT with a nonparametric Wilcoxon test. The correlation between the presence of an HVI and histopathological criteria associated with poor prognosis (HPP) on liver explants was investigated using the chi-square test. Tumor recurrence (TR) and TR-related mortality were investigated using the chi-square test. Recurrence-free survival (RFS), TR-related survival (TRRS), and overall survival (OS) were assessed according to the presence of HVI using Kaplan–Meier analysis. Results: Among 63 included patients (average age: 59 ± 7 years, H/F = 50/13), 36 presented HVIs on per-interventional CBCT. The overall nodule detection rate of per-interventional CBCT was superior to that of PII (median at 3 [Q1:2, Q3:5] vs. 2 [Q1:1, Q3:3], respectively,p< 0.001). No significant correlation was shown between the presence of HVI and HPP (p= 0.34), TR (p= 0.095), and TR-related mortality (0.22). Kaplan–Meier analysis did not show a significant impact of the presence of HVI on RFS (p= 0.07), TRRS (0.48), or OS (p= 0.14). Conclusions: These results may indicate that the treatment plan during IAT should not be impacted or modified in response to HVI detection.
背景:目前指南未对肝细胞癌(HCC)患者经动脉介入治疗(IAT)期间发现的肝富血供偶发瘤(HVI)提出系统管理方案。本研究旨在评估等待肝移植(LT)的HCC患者接受IAT期间,介入术中锥形束计算机断层扫描(CBCT)检测到的HVI对预后的预测价值。材料与方法:本回顾性单中心研究纳入2014年1月至2018年12月期间接受肝移植的所有HCC患者,这些患者在移植前均接受过经动脉化疗栓塞(TACE)或放射栓塞(TARE)治疗。通过非参数Wilcoxon检验,比较增强介入前影像(PII)与介入术中CBCT检测到的≥10 mm HCC病灶数量。采用卡方检验分析HVI存在与移植肝标本中不良预后相关组织病理学标准(HPP)之间的相关性。肿瘤复发(TR)及TR相关死亡率同样采用卡方检验分析。根据HVI存在情况,使用Kaplan-Meier法评估无复发生存期(RFS)、TR相关生存期(TRRS)和总生存期(OS)。结果:在纳入的63例患者中(平均年龄59±7岁,男/女=50/13),36例在介入术中CBCT发现HVI。介入术中CBCT总体结节检出率显著优于PII(中位数3[Q1:2, Q3:5] vs. 2[Q1:1, Q3:3],p<0.001)。HVI存在与HPP(p=0.34)、TR(p=0.095)及TR相关死亡率(p=0.22)均无显著相关性。Kaplan-Meier分析显示HVI存在对RFS(p=0.07)、TRRS(p=0.48)或OS(p=0.14)均无显著影响。结论:这些结果表明,IAT期间的治疗方案可能无需因HVI的检测而调整或改变。