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Evaluating microvascular invasion in hepatitis B virus-related hepatocellular carcinoma based on contrast-enhanced computed tomography radiomics and clinicoradiological factors
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作者 Zi-Ling Xu Gui-Xiang Qian +6 位作者 Yong-Hai Li Jian-Lin Lu Ming-Tong Wei Xiang-Yi Bu Yong-Sheng Ge Yuan Cheng Wei-Dong Jia 《World Journal of Gastroenterology》 SCIE CAS 2024年第45期4801-4816,共16页
BACKGROUND Microvascular invasion(MVI)is a significant indicator of the aggressive behavior of hepatocellular carcinoma(HCC).Expanding the surgical resection margin and performing anatomical liver resection may improv... BACKGROUND Microvascular invasion(MVI)is a significant indicator of the aggressive behavior of hepatocellular carcinoma(HCC).Expanding the surgical resection margin and performing anatomical liver resection may improve outcomes in patients with MVI.However,no reliable preoperative method currently exists to predict MVI status or to identify patients at high-risk group(M2).AIM To develop and validate models based on contrast-enhanced computed tomo-graphy(CECT)radiomics and clinicoradiological factors to predict MVI and identify M2 among patients with hepatitis B virus-related HCC(HBV-HCC).The ultimate goal of the study was to guide surgical decision-making.METHODS A total of 270 patients who underwent surgical resection were retrospectively analyzed.The cohort was divided into a training dataset(189 patients)and a validation dataset(81)with a 7:3 ratio.Radiomics features were selected using intra-class correlation coefficient analysis,Pearson or Spearman’s correlation analysis,and the least absolute shrinkage and selection operator algorithm,leading to the construction of radscores from CECT images.Univariate and multivariate analyses identified significant clinicoradiological factors and radscores associated with MVI and M2,which were subsequently incorporated into predictive models.The models’performance was evaluated using calibration,discrimination,and clinical utility analysis.RESULTS Independent risk factors for MVI included non-smooth tumor margins,absence of a peritumoral hypointensity ring,and a high radscore based on delayed-phase CECT images.The MVI prediction model incorporating these factors achieved an area under the curve(AUC)of 0.841 in the training dataset and 0.768 in the validation dataset.The M2 prediction model,which integrated the radscore from the 5 mm peritumoral area in the CECT arterial phase,α-fetoprotein level,enhancing capsule,and aspartate aminotransferase level achieved an AUC of 0.865 in the training dataset and 0.798 in the validation dataset.Calibration and decision curve analyses confirmed the models’good fit and clinical utility.CONCLUSION Multivariable models were constructed by combining clinicoradiological risk factors and radscores to preoper-atively predict MVI and identify M2 among patients with HBV-HCC.Further studies are needed to evaluate the practical application of these models in clinical settings. 展开更多
关键词 Radiomics Contrast-enhanced computed tomography Hepatocellular carcinoma microvascular invasion Hepatitis B virus
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Application of texture signatures based on multiparameter-magnetic resonance imaging for predicting microvascular invasion in hepatocellular carcinoma:Retrospective study
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作者 Hai-Yang Nong Yong-Yi Cen +5 位作者 Mi Qin Wen-Qi Qin You-Xiang Xie Lin Li Man-Rong Liu Ke Ding 《World Journal of Gastrointestinal Oncology》 SCIE 2024年第4期1309-1318,共10页
BACKGROUND Despite continuous changes in treatment methods,the survival rate for advanced hepatocellular carcinoma(HCC)patients remains low,highlighting the importance of diagnostic methods for HCC.AIM To explore the ... BACKGROUND Despite continuous changes in treatment methods,the survival rate for advanced hepatocellular carcinoma(HCC)patients remains low,highlighting the importance of diagnostic methods for HCC.AIM To explore the efficacy of texture analysis based on multi-parametric magnetic resonance(MR)imaging(MRI)in predicting microvascular invasion(MVI)in preoperative HCC.METHODS This study included 105 patients with pathologically confirmed HCC,categorized into MVI-positive and MVI-negative groups.We employed Original Data Analysis,Principal Component Analysis,Linear Discriminant Analysis(LDA),and Non-LDA(NDA)for texture analysis using multi-parametric MR images to predict preoperative MVI.The effectiveness of texture analysis was determined using the B11 program of the MaZda4.6 software,with results expressed as the misjudgment rate(MCR).RESULTS Texture analysis using multi-parametric MRI,particularly the MI+PA+F dimensionality reduction method combined with NDA discrimination,demonstrated the most effective prediction of MVI in HCC.Prediction accuracy in the pulse and equilibrium phases was 83.81%.MCRs for the combination of T2-weighted imaging(T2WI),arterial phase,portal venous phase,and equilibrium phase were 22.86%,16.19%,20.95%,and 20.95%,respectively.The area under the curve for predicting MVI positivity was 0.844,with a sensitivity of 77.19%and specificity of 91.67%.CONCLUSION Texture analysis of arterial phase images demonstrated superior predictive efficacy for MVI in HCC compared to T2WI,portal venous,and equilibrium phases.This study provides an objective,non-invasive method for preoperative prediction of MVI,offering a theoretical foundation for the selection of clinical therapy. 展开更多
关键词 Magnetic resonance imaging Hepatocellular carcinoma Texture analysis microvascular invasion
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Preoperative prediction of hepatocellular carcinoma microvascular invasion based on magnetic resonance imaging feature extraction artificial neural network
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作者 Jing-Yi Xu Yu-Fan Yang +2 位作者 Zhong-Yue Huang Xin-Ye Qian Fan-Hua Meng 《World Journal of Gastrointestinal Surgery》 SCIE 2024年第8期2546-2554,共9页
BACKGROUND Hepatocellular carcinoma(HCC)recurrence is highly correlated with increased mortality.Microvascular invasion(MVI)is indicative of aggressive tumor biology in HCC.AIM To construct an artificial neural networ... BACKGROUND Hepatocellular carcinoma(HCC)recurrence is highly correlated with increased mortality.Microvascular invasion(MVI)is indicative of aggressive tumor biology in HCC.AIM To construct an artificial neural network(ANN)capable of accurately predicting MVI presence in HCC using magnetic resonance imaging.METHODS This study included 255 patients with HCC with tumors<3 cm.Radiologists annotated the tumors on the T1-weighted plain MR images.Subsequently,a three-layer ANN was constructed using image features as inputs to predict MVI status in patients with HCC.Postoperative pathological examination is considered the gold standard for determining MVI.Receiver operating characteristic analysis was used to evaluate the effectiveness of the algorithm.RESULTS Using the bagging strategy to vote for 50 classifier classification results,a prediction model yielded an area under the curve(AUC)of 0.79.Moreover,correlation analysis revealed that alpha-fetoprotein values and tumor volume were not significantly correlated with the occurrence of MVI,whereas tumor sphericity was significantly correlated with MVI(P<0.01).CONCLUSION Analysis of variable correlations regarding MVI in tumors with diameters<3 cm should prioritize tumor sphericity.The ANN model demonstrated strong predictive MVI for patients with HCC(AUC=0.79). 展开更多
关键词 Hepatocellular carcinoma microvascular invasion Artificial neural network Magnetic resonance imaging Tumor sphericity Area under the curve
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Postoperative adjuvant therapy for hepatocellular carcinoma with microvascular invasion 被引量:3
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作者 Jiang Li Fan Yang +3 位作者 Jian Li Zhi-Yong Huang Qi Cheng Er-Lei Zhang 《World Journal of Gastrointestinal Surgery》 SCIE 2023年第1期19-31,共13页
Hepatocellular carcinoma(HCC)is one of the most lethal tumors in the world.Liver resection(LR)and liver transplantation(LT)are widely considered as radical treatments for early HCC.However,the recurrence rates after c... Hepatocellular carcinoma(HCC)is one of the most lethal tumors in the world.Liver resection(LR)and liver transplantation(LT)are widely considered as radical treatments for early HCC.However,the recurrence rates after curative treatment are still high and overall survival is unsatisfactory.Microvascular invasion(MVI)is considered to be one of the important prognostic factors affecting postoperative recurrence and long-term survival.Unfortunately,whether HCC patients with MVI should receive postoperative adjuvant therapy remains unknown.In this review,we summarize the therapeutic effects of transcatheter arterial chemoembolization,hepatic arterial infusion chemotherapy,tyrosine protein kinase inhibitor-based targeted therapy,and immune checkpoint inhibitors in patients with MVI after LR or LT,aiming to provide a reference for the best adjuvant treatment strategy for HCC patients with MVI after LT or LR. 展开更多
关键词 microvascular invasion Hepatocellular carcinoma Liver resection Liver transplantation POSTOPERATIVE Adjuvant treatment
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Preoperative prediction of microvascular invasion in hepatocellular carcinoma using ultrasound features including elasticity 被引量:1
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作者 Dong Jiang Yi Qian +3 位作者 Bi-Bo Tan Xia-Ling Zhu Hui Dong Rong Qian 《World Journal of Gastrointestinal Surgery》 SCIE 2023年第9期2042-2051,共10页
BACKGROUND Microvascular invasion(MVI)is an important predictor of poor prognosis in patients with hepatocellular carcinoma(HCC).Accurate preoperative prediction of MVI in HCC would provide useful information to guide... BACKGROUND Microvascular invasion(MVI)is an important predictor of poor prognosis in patients with hepatocellular carcinoma(HCC).Accurate preoperative prediction of MVI in HCC would provide useful information to guide the choice of therapeutic strategy.Shear wave elastography(SWE)plays an important role in hepatic imaging,but its value in the preoperative prediction of MVI in HCC has not yet been proven.AIM To explore the value of conventional ultrasound features and SWE in the preoperative prediction of MVI in HCC.METHODS Patients with a postoperative pathological diagnosis of HCC and a definite diagnosis of MVI were enrolled in this study.Conventional ultrasound features and SWE features such as maximal elasticity(Emax)of HCCs and Emax of the periphery of HCCs were acquired before surgery.These features were compared between MVI-positive HCCs and MVI-negative HCCs and between mild MVI HCCs and severe MVI HCCs.RESULTS This study included 86 MVI-negative HCCs and 102 MVI-positive HCCs,including 54 with mild MVI and 48 with severe MVI.Maximal tumor diameters,surrounding liver tissue,color Doppler flow,Emax of HCCs,and Emax of the periphery of HCCs were significantly different between MVI-positive HCCs and MVI-negative HCCs.In addition,Emax of the periphery of HCCs was significantly different between mild MVI HCCs and severe MVI HCCs.Higher Emax of the periphery of HCCs and larger maximal diameters were independent risk factors for MVI,with odds ratios of 2.820 and 1.021,respectively.CONCLUSION HCC size and stiffness of the periphery of HCC are useful ultrasound criteria for predicting positive MVI.Preoperative ultrasound and SWE can provide useful information for the prediction of MVI in HCCs. 展开更多
关键词 Hepatocellular carcinoma microvascular invasion Conventional ultrasound Shear wave elastography
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基于钆塞酸二钠增强MRI列线图预测MVI阴性肝细胞癌术后复发
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作者 瞿琦 张涛 +5 位作者 张学琴 鲁梦恬 徐磊 张继云 刘茂童 姜吉峰 《放射学实践》 CSCD 北大核心 2024年第5期591-597,共7页
目的:探讨基于钆塞酸二钠(Gd-EOB-DTPA)增强MRI列线图模型预测微血管浸润(MVI)阴性肝细胞癌(HCC)患者根治性切除术后无复发生存(RFS)的价值。方法:回顾性搜集2015年2月-2021年5月在我院接受根治性肝切除术且经病理证实为MVI阴性的HCC患... 目的:探讨基于钆塞酸二钠(Gd-EOB-DTPA)增强MRI列线图模型预测微血管浸润(MVI)阴性肝细胞癌(HCC)患者根治性切除术后无复发生存(RFS)的价值。方法:回顾性搜集2015年2月-2021年5月在我院接受根治性肝切除术且经病理证实为MVI阴性的HCC患者125例,分析患者的术前临床资料、MRI资料及术后病理资料。通过单因素和多因素Cox比例风险模型分析获得患者术后RFS的独立危险因素,并构建预测患者1、3和5年RFS率的列线图模型,采用C指数和受试者工作特征(ROC)曲线评价模型的区分度,采用校准曲线评价模型的一致性。结果:随访过程中,37例HCC患者复发,中位RFS时间为27.1个月[95%置信区间(CI):43.3~54.1个月],术后1、3和5年RFS率分别为88.0%、71.9%、45.9%。多因素分析结果显示病理分级[风险比(HR)=4.807,95%CI:1.126~20.526,P=0.034]、肝胆期瘤周低信号(HR=3.755,95%CI:1.736~8.122,P=0.001)、肝胆期病灶-肝实质信号强度比(RIR)(HR=0.019,95%CI:0.001~0.396,P=0.010)是HCC患者术后RFS的独立危险因素。整合上述3个变量构建的列线图预测模型的曲线下面积(AUC)为0.819(95%CI:0.740~0.882),同时经Bootstrap内部验证,该模型的C指数为0.795(95%CI:0.723~0.867),且校准曲线验证结果显示该模型预测概率与实际观察概率吻合度较好。结论:基于Gd-EOB-DTPA增强MRI构建的列线图可以有效预测MVI阴性HCC患者的术后RFS。 展开更多
关键词 肝细胞癌 钆塞酸二钠 磁共振成像 微血管浸润 列线图 无复发生存
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Prediction of the lymphatic,microvascular,and perineural invasion of pancreatic neuroendocrine tumors using preoperative magnetic resonance imaging
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作者 Yu-Liang Liu Hai-Bin Zhu +3 位作者 Mai-Lin Chen Wei Sun Xiao-Ting Li Ying-Shi Sun 《World Journal of Gastrointestinal Surgery》 SCIE 2023年第12期2809-2819,共11页
BACKGROUND Significant correlation between lymphatic,microvascular,and perineural invasion(LMPI)and the prognosis of pancreatic neuroendocrine tumors(PENTs)was confirmed by previous studies.There was no previous study... BACKGROUND Significant correlation between lymphatic,microvascular,and perineural invasion(LMPI)and the prognosis of pancreatic neuroendocrine tumors(PENTs)was confirmed by previous studies.There was no previous study reported the relationship between magnetic resonance imaging(MRI)parameters and LMPI.AIM To determine the feasibility of using preoperative MRI of the pancreas to predict LMPI in patients with non-functioning PENTs(NFPNETs).METHODS A total of 61 patients with NFPNETs who underwent MRI scans and lymphadenectomy from May 2011 to June 2018 were included in this retrospective study.The patients were divided into group 1(n=34,LMPI negative)and group 2(n=27,LMPI positive).The clinical characteristics and qualitative MRI features were collected.In order to predict LMPI status in NF-PNETs,a multivariate logistic regression model was constructed.Diagnostic performance was evaluated by calculating the receiver operator characteristic(ROC)curve with area under ROC,sensitivity,specificity,positive predictive value(PPV),negative predictive value(NPV)and accuracy.RESULTS There were significant differences in the lymph node metastasis stage,tumor grade,neuron-specific enolase levels,tumor margin,main pancreatic ductal dilatation,common bile duct dilatation,enhancement pattern,vascular and adjacent tissue involvement,synchronous liver metastases,the long axis of the largest lymph node,the short axis of the largest lymph node,number of the lymph nodes with short axis>5 or 10 mm,and tumor volume between two groups(P<0.05).Multivariate analysis showed that tumor margin(odds ratio=11.523,P<0.001)was a predictive factor for LMPI of NF-PNETs.The area under the receiver value for the predictive performance of combined predictive factors was 0.855.The sensitivity,specificity,PPV,NPV and accuracy of the model were 48.1%(14/27),97.1%(33/34),97.1%(13/14),70.2%(33/47)and 0.754,respectively.CONCLUSION Using preoperative MRI,ill-defined tumor margins can effectively predict LMPI in patients with NF-PNETs. 展开更多
关键词 Pancreatic neuroendocrine tumors Magnetic resonance imaging Lymphatic invasion microvascular invasion Perineural invasion
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胸腺肽α1对伴MVI的肝细胞癌患者解剖性肝切除术后免疫功能和预后的影响
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作者 钟平勇 刘欣 +2 位作者 牟廷刚 卿明 谢飞 《肝胆胰外科杂志》 2024年第1期7-12,共6页
目的 探讨解剖性肝切除术后应用非特异性免疫调节剂胸腺肽α1(Tα1)治疗对伴有微血管侵犯(MVI)的肝细胞癌(HCC)患者免疫功能和预后的影响。方法 回顾性分析2017年3月至2021年6月在内江市第一人民医院行解剖性肝切除术,术后病理为HCC伴MV... 目的 探讨解剖性肝切除术后应用非特异性免疫调节剂胸腺肽α1(Tα1)治疗对伴有微血管侵犯(MVI)的肝细胞癌(HCC)患者免疫功能和预后的影响。方法 回顾性分析2017年3月至2021年6月在内江市第一人民医院行解剖性肝切除术,术后病理为HCC伴MVI的106例患者临床资料。按术后是否联合应用Tα1,将患者分为Tα1治疗组(Tα1组,49例)和常规治疗组(常规组,57例)。比较两组术前及术后1、3、6个月外周血T淋巴细胞亚群数量百分比和中性粒细胞与淋巴细胞比值(NLR)变化;比较两组肿瘤1年复发率及无复发生存率情况;分析影响HCC患者术后复发的预后因素。结果 (1)Tα1组患者术后CD3^(+)、CD4^(+)、CD4^(+)/CD8^(+)均明显高于常规组(F=10.336,16.541,16.397;均P<0.05);两组术后CD8^(+)比较差异无统计学意义(F=0.638,P=0.426)。Tα1组CD3^(+)、CD4^(+)、CD4^(+)/CD8^(+)术后即明显高于术前水平(P<0.05),CD8^(+)明显低于术前水平(P<0.05)。常规组在术后6个月时,CD3^(+)、CD4^(+)明显高于术前水平(P<0.05),CD8^(+)明显低于术前水平(P<0.05);CD4^(+)/CD8^(+)在术后3、6个月明显高于术前水平(P<0.05)。(2)Tα1组患者NLR在术后1、3、6个月下降率明显高于常规组(χ^(2)=9.811,10.271,10.120;P<0.05)。(3)Tα1组术后1年复发率为18.4%,常规组为26.3%,两组比较差异无统计学意义(χ^(2)=0.950,P=0.330);Tα1组术后无复发生存率优于常规组(χ^(2)=4.348,P<0.05)。(4)多因素Cox分析结果显示:术后应用Tα1是一个显著影响HCC患者术后复发的独立预后因素(OR=0.554,95%CI 0.317-0.967,P=0.038)。结论 Tα1可以通过调节炎症和免疫状态,提高伴有MVI的HCC患者在解剖性肝切除术后的无复发生存率,使患者生存预后获益。 展开更多
关键词 肝细胞癌 微血管侵犯 解剖性肝切除术 胸腺肽Α1 T淋巴细胞亚群 中性粒细胞与淋巴细胞比值
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基于术前DCE-MRI特征的肝癌患者术后MVI风险模型效能分析 被引量:2
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作者 温桂海 孔维 《西部医学》 2023年第9期1331-1335,共5页
目的探讨基于术前动态对比增强MRI(DCE-MRI)特征建立的风险模型在早期预测肝细胞癌存在微血管侵犯(MVI)效能。方法纳入我院在2020年1月—2022年4月收治的接受手术治疗的肝细胞肝癌(HCC)患者242例,收集患者临床实验室资料,于术前2周对所... 目的探讨基于术前动态对比增强MRI(DCE-MRI)特征建立的风险模型在早期预测肝细胞癌存在微血管侵犯(MVI)效能。方法纳入我院在2020年1月—2022年4月收治的接受手术治疗的肝细胞肝癌(HCC)患者242例,收集患者临床实验室资料,于术前2周对所有患者进行DCE-MRI扫描,分析患者DCE-MRI的定量指标和定性指标。术后根据HCC是否存在微血管侵犯分为MVI组和对照组,对比两组患者临床实验室资料,分析影响HCC出现MVI的因素;将所有患者按7∶3比例分为训练集170例和测试集72例,基于训练集的数据采用R软件建立列线图模型,在测试集中验证模型效能。结果训练集170例患者中共出现70例MVI,据此分组后对比两组临床资料显示,MVsI组K trans、K ep、V e、V p指标明显高于对照组,MVI组肿瘤边缘不规则、肝胆期瘤周低信号比例高于对照组(P<0.05);多因素Logistics回归分析显示,K trans、V e、K ep、V p、肿瘤边缘不规则、肝胆期瘤周低信号是HCC出现MVI的独立相关因素(P<0.05);通过构建列线图预测模型,结果显示模型预测HCC出现MIV风险的一致性指数(C-index)为0.948。外部验证显示敏感性为88.00%,特异性为96.36%。结论K trans、V e、K ep、V p、肿瘤边缘不规则、肝胆期瘤周低信号是HCC存在MVI的独立相关因素;基于术前DCE-MRI特征建立的风险模型在早期预测HCC出现MVI方面具有良好的预测效能。 展开更多
关键词 动态对比增强 核磁共振成像 肝细胞肝癌 微血管侵犯 预测模型
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Efficacy of postoperative adjuvant transcatheter arterial chemoembolization in hepatocellular carcinoma patients with microvascular invasion 被引量:33
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作者 Jia-Zhou Ye Jun-Ze Chen +5 位作者 Zi-Hui Li Tao Bai Jie Chen Shao-Liang Zhu Le-Qun Li Fei-Xiang Wu 《World Journal of Gastroenterology》 SCIE CAS 2017年第41期7415-7424,共10页
AIM To investigate the efficacy and safety of postoperative adjuvant transcatheter arterial chemoembolization(PA-TACE) in preventing tumor recurrence and improving survival in Barcelona Clinic Liver Cancer(BCLC) early... AIM To investigate the efficacy and safety of postoperative adjuvant transcatheter arterial chemoembolization(PA-TACE) in preventing tumor recurrence and improving survival in Barcelona Clinic Liver Cancer(BCLC) early(A) and intermediate(B) stage hepatocellular carcinoma(HCC) patients with microvascular invasion(MVI).METHODS A total of 519 BCLC A or B HCC patients treated by liver resection alone or followed by PA-TACE between January 2012 and December 2015 were studied retrospectively. Univariate and multivariate analyses were performed to investigate the risk factors for recurrence-free survival(RFS) and overall survival(OS). Multiple logistic regression was used to identify the clinicopathological characteristics associated with MVI. The rates of RFS and OS were compared among patients with or without MVI treated with liver resection alone or followed by PA-TACE. RESULTS Univariate and multivariate analyses demonstrated that serum AFP level > 400 ng/m L, tumor size > 5 cm, tumor capsule invasion, MVI, and major hepatectomy were risk factors for poor OS. Tumor capsule invasion, MVI, tumor size > 5 cm, HBV-DNA copies > 1 x 104 IU/m L, and multinodularity were risk factors for poor RFS. Multiple logistic regression identified serum AFP level > 400 ng/m L, tumor size > 5 cm, and tumor capsule invasion as independent predictors of MVI. Both OS and DFS were significantly improved in patients with MVI who received PA-TACE as compared to those who underwent liver resection alone. Patients without MVI did not show a significant difference in OS and RFS between those treated by liver resection alone or followed by PA-TACE.CONCLUSION PA-TACE is a safe adjuvant intervention and can efficiently prevent tumor recurrence and improve the survival of BCLC early-and intermediate-stage HCC patients with MVI. 展开更多
关键词 Hepatocellular carcinoma microvascular invasion Postoperative adjuvant transcatheter arterial chemoembolization Recurrence-free survival Overall survival
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Radiomics for the detection of microvascular invasion in hepatocellular carcinoma 被引量:20
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作者 Kun Lv Xin Cao +3 位作者 Peng Du Jun-Yan Fu Dao-Ying Geng Jun Zhang 《World Journal of Gastroenterology》 SCIE CAS 2022年第20期2176-2183,共8页
Hepatocellular carcinoma(HCC)is the most common primary liver cancer,accounting for about 90%of liver cancer cases.It is currently the fifth most common cancer in the world and the third leading cause of cancer-relate... Hepatocellular carcinoma(HCC)is the most common primary liver cancer,accounting for about 90%of liver cancer cases.It is currently the fifth most common cancer in the world and the third leading cause of cancer-related mortality.Moreover,recurrence of HCC is common.Microvascular invasion(MVI)is a major factor associated with recurrence in postoperative HCC.It is difficult to evaluate MVI using traditional imaging modalities.Currently,MVI is assessed primarily through pathological and immunohistochemical analyses of postoperative tissue samples.Needle biopsy is the primary method used to confirm MVI diagnosis before surgery.As the puncture specimens represent just a small part of the tumor,and given the heterogeneity of HCC,biopsy samples may yield false-negative results.Radiomics,an emerging,powerful,and non-invasive tool based on various imaging modalities,such as computed tomography,magnetic resonance imaging,ultrasound,and positron emission tomography,can predict the HCC-MVI status preoperatively by delineating the tumor and/or the regions at a certain distance from the surface of the tumor to extract the image features.Although positive results have been reported for radiomics,its drawbacks have limited its clinical translation.This article reviews the application of radiomics,based on various imaging modalities,in preoperative evaluation of HCC-MVI and explores future research directions that facilitate its clinical translation. 展开更多
关键词 microvascular invasion Hepatocellular carcinoma Radiomics Texture analysis Diagnostic imaging LIVER
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Development and validation of a prediction model for microvascular invasion in hepatocellular carcinoma 被引量:12
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作者 Lin Wang Yue-Xinzi Jin +3 位作者 Ya-Zhou Ji Yuan Mu Shi-Chang Zhang Shi-Yang Pan 《World Journal of Gastroenterology》 SCIE CAS 2020年第14期1647-1659,共13页
BACKGROUND Microvascular invasion(MVI)is an important prognostic factor affecting early recurrence and overall survival in hepatocellular carcinoma(HCC)patients after hepatectomy and liver transplantation,but it can b... BACKGROUND Microvascular invasion(MVI)is an important prognostic factor affecting early recurrence and overall survival in hepatocellular carcinoma(HCC)patients after hepatectomy and liver transplantation,but it can be determined only in surgical specimens.Accurate preoperative prediction of MVI is conducive to clinical decisions.AIM To develop and validate a preoperative prediction model for MVI in patients with HCC.METHODS Data from 454 patients with HCC who underwent hepatectomy at the First Affiliated Hospital of Nanjing Medical University between May 2016 and October 2019 were retrospectively collected.Then,the patients were nonrandomly split into a training cohort and a validation cohort.Logistic regression analysis was used to identify variables significantly associated with MVI that were then included in the nomogram.We evaluated the discrimination and calibration ability of the nomogram by using R software.RESULTS MVI was confirmed in 209(46.0%)patients by a pathological examination.Multivariate logistic regression analysis identified four risk factors independently associated with MVI:Tumor size[odds ratio(OR)=1.195;95%confidence interval(CI):1.107–1.290;P<0.001],number of tumors(OR=4.441;95%CI:2.112–9.341;P<0.001),neutrophils(OR=1.714;95%CI:1.036–2.836;P=0.036),and serumα-fetoprotein(20–400 ng/mL,OR=1.955;95%CI:1.055–3.624;P=0.033;>400 ng/mL,OR=3.476;95%CI:1.950–6.195;P<0.001).The concordance index was 0.79(95%CI:0.74–0.84)and 0.81(95%CI:0.74–0.89)in the training and validation cohorts,respectively.The calibration curves showed good agreement between the predicted risk by the nomogram and real outcomes.CONCLUSION We have developed and validated a preoperative prediction model for MVI in patients with HCC.The model could aid physicians in clinical treatment decision making. 展开更多
关键词 microvascular invasion NOMOGRAM HEPATOCELLULAR carcinoma Discrimination and calibration NEUTROPHILS Early RECURRENCE
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Prediction of microvascular invasion in solitary hepatocellular carcinoma≤5 cm based on computed tomography radiomics 被引量:7
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作者 Peng Liu Xian-Zhen Tan +4 位作者 Ting Zhang Qian-Biao Gu Xian-Hai Mao Yan-Chun Li Ya-Qiong He 《World Journal of Gastroenterology》 SCIE CAS 2021年第17期2015-2024,共10页
BACKGROUND Liver cancer is one of the most common malignant tumors,and ranks as the fourth leading cause of cancer death worldwide.Microvascular invasion(MVI)is considered one of the most important factors for recurre... BACKGROUND Liver cancer is one of the most common malignant tumors,and ranks as the fourth leading cause of cancer death worldwide.Microvascular invasion(MVI)is considered one of the most important factors for recurrence and poor prognosis of liver cancer.Thus,accurately identifying MVI before surgery is of great importance in making treatment strategies and predicting the prognosis of patients with hepatocellular carcinoma(HCC).Radiomics as an emerging field,aims to utilize artificial intelligence software to develop methods that may contribute to cancer diagnosis,treatment improvement and evaluation,and better prediction.AIM To investigate the predictive value of computed tomography radiomics for MVI in solitary HCC≤5 cm.METHODS A total of 185 HCC patients,including 122 MVI negative and 63 MVI positive patients,were retrospectively analyzed.All patients were randomly assigned to the training group(n=124)and validation group(n=61).A total of 1351 radiomic features were extracted based on three-dimensional images.The diagnostic performance of the radiomics model was verified in the validation group,and the Delong test was applied to compare the radiomics and MVIrelated imaging features(two-trait predictor of venous invasion and radiogenomic invasion).RESULTS A total of ten radiomics features were finally obtained after screening 1531 features.According to the weighting coefficient that corresponded to the features,the radiomics score(RS)calculation formula was obtained,and the RS score of each patient was calculated.The radiomics model exhibited a better correction and identification ability in the training and validation groups[area under the curve:0.72(95%confidence interval:0.58-0.86)and 0.74(95%confidence interval:0.66-0.83),respectively].Its prediction performance was significantly higher than that of the image features(P<0.05).CONCLUSION Computed tomography radiomics has certain predictive value for MVI in solitary HCC≤5 cm,and the predictive ability is higher than that of image features. 展开更多
关键词 Hepatocellular carcinoma microvascular invasion Radiomics Image features Computed tomography
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Anatomic resection improved the long-term outcome of hepatocellular carcinoma patients with microvascular invasion:A prospective cohort study 被引量:10
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作者 Jiang-Min Zhou Chen-Yang Zhou +1 位作者 Xiao-Ping Chen Zhi-Wei Zhang 《World Journal of Gastrointestinal Oncology》 SCIE 2021年第12期2190-2202,共13页
BACKGROUND The long-term effect of anatomic resection(AR)is better than that of nonanatomic resection(NAR).At present,there is no study on microvascular invasion(MVI)and liver resection types.AIM To explore whether AR... BACKGROUND The long-term effect of anatomic resection(AR)is better than that of nonanatomic resection(NAR).At present,there is no study on microvascular invasion(MVI)and liver resection types.AIM To explore whether AR improves long-term survival in patients with hepatocellular carcinoma(HCC)by removing the peritumoral MVI.METHODS A total of 217 patients diagnosed with HCC were enrolled in the study.The surgical margin was routinely measured.According to the stratification of different tumor diameters,patients were divided into the following groups:≤2 cm group,2-5 cm group,and>5 cm group.RESULTS In the 2-5 cm diameter group,the overall survival(OS)of MVI positive patients was significantly better than that of MVI negative patients(P=0.031).For the MVI positive patients,there was a statistically significant difference between AR and NAR(P=0.027).AR leads to a wider surgical margin than NAR(2.0±2.3 cm vs 0.7±0.5 cm,P<0.001).In the groups with tumor diameters<2 cm,both AR and NAR can obtain a wide surgical margin,and the surgical margins of AR are wider than that of NAR(3.5±5.8 cm vs 1.6±0.5 cm,P=0.048).In the groups with tumor diameters>5 cm,both AR and NAR fail to obtain wide surgical margin(0.6±1.0 cm vs 0.7±0.4 cm,P=0.491).CONCLUSION For patients with a tumor diameter of 2-5 cm,AR can achieve the removal of peritumoral MVI by obtaining a wide incision margin,reduce postoperative recurrence,and improve prognosis. 展开更多
关键词 microvascular invasion Hepatocellular carcinoma Anatomic resection Surgical margin RECURRENCE SURGERY
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Radiomic analysis based on multi-phase magnetic resonance imaging to predict preoperatively microvascular invasion in hepatocellular carcinoma 被引量:5
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作者 Yue-Ming Li Yue-Min Zhu +5 位作者 Lan-Mei Gao Ze-Wen Han Xiao-Jie Chen Chuan Yan Rong-Ping Ye Dai-Rong Cao 《World Journal of Gastroenterology》 SCIE CAS 2022年第24期2733-2747,共15页
BACKGROUND The prognosis of hepatocellular carcinoma(HCC)remains poor and relapse occurs in more than half of patients within 2 years after hepatectomy.In terms of recent studies,microvascular invasion(MVI)is one of t... BACKGROUND The prognosis of hepatocellular carcinoma(HCC)remains poor and relapse occurs in more than half of patients within 2 years after hepatectomy.In terms of recent studies,microvascular invasion(MVI)is one of the potential predictors of recurrence.Accurate preoperative prediction of MVI is potentially beneficial to the optimization of treatment planning.AIM To develop a radiomic analysis model based on pre-operative magnetic resonance imaging(MRI)data to predict MVI in HCC.METHODS A total of 113 patients recruited to this study have been diagnosed as having HCC with histological confirmation,among whom 73 were found to have MVI and 40 were not.All the patients received preoperative examination by Gd-enhanced MRI and then curative hepatectomy.We manually delineated the tumor lesion on the largest cross-sectional area of the tumor and the adjacent two images on MRI,namely,the regions of interest.Quantitative analyses included most discriminant factors(MDFs)developed using linear discriminant analysis algorithm and histogram analysis with MaZda software.Independent significant variables of clinical and radiological features and MDFs for the prediction of MVI were estimated and a discriminant model was established by univariate and multivariate logistic regression analysis.Prediction ability of the above-mentioned parameters or model was then evaluated by receiver operating characteristic(ROC)curve analysis.Five-fold cross-validation was also applied via R software.RESULTS The area under the ROC curve(AUC)of the MDF(0.77-0.85)outperformed that of histogram parameters(0.51-0.74).After multivariate analysis,MDF values of the arterial and portal venous phase,and peritumoral hypointensity in the hepatobiliary phase were identified to be independent predictors of MVI(P<0.05).The AUC value of the model was 0.939[95%confidence interval(CI):0.893-0.984,standard error:0.023].The result of internal five-fold cross-validation(AUC:0.912,95%CI:0.841-0.959,standard error:0.0298)also showed favorable predictive efficacy.CONCLUSION Noninvasive MRI radiomic model based on MDF values and imaging biomarkers may be useful to make preoperative prediction of MVI in patients with primary HCC. 展开更多
关键词 Hepatocellular carcinoma microvascular invasion Magnetic resonance imaging Radiomic analysis Imaging biomarkers
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Application of microvascular invasion at primary resection in treatment selection for intermediate-advanced recurrent hepatocellular carcinoma
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作者 Zebin Chen Yuanqi Wang +3 位作者 Shuling Chen Sui Peng Zhenwei Peng Ming Kuang 《Cancer Biology & Medicine》 SCIE CAS CSCD 2018年第S01期21-22,共2页
Objective:Treatment strategies for recurrent hepatocellular carcinoma(rHCC)are controversial.We used the status of microvascular invasion(MVI)at primary resection as a marker to choose moderate treatment options for r... Objective:Treatment strategies for recurrent hepatocellular carcinoma(rHCC)are controversial.We used the status of microvascular invasion(MVI)at primary resection as a marker to choose moderate treatment options for rHCC patients with Barcelona Clinic Liver Cancer(BCLC)stage B-C disease.Methods:From June 2009 to June 2017. 展开更多
关键词 APPLICATION microvascular invasion
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MRI增强扫描对原发性肝癌患者肝动脉化疗栓塞术后MVI预后的预测价值
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作者 王兴林 郭志伟 +2 位作者 黄建儒 敬杰 李海青 《广西医科大学学报》 CAS 2023年第12期2043-2050,共8页
目的:探究磁共振成像(MRI)增强扫描预测原发性肝癌(PHC)患者肝动脉化疗栓塞术(TACE)后微血管侵犯(MVI)预后的价值。方法:选取2020年1月至2022年1月四川省南充市中心医院收治的100例TACE后合并MVI的PHC患者,均行MRI增强扫描获取定量参数... 目的:探究磁共振成像(MRI)增强扫描预测原发性肝癌(PHC)患者肝动脉化疗栓塞术(TACE)后微血管侵犯(MVI)预后的价值。方法:选取2020年1月至2022年1月四川省南充市中心医院收治的100例TACE后合并MVI的PHC患者,均行MRI增强扫描获取定量参数〔肝动脉灌注指数(HPI)、容积转移常数(K^(trans))〕;统计术后1年内复发情况,根据术后1年是否复发分为复发组和未复发组,比较两组临床资料、血清肿瘤标志物〔癌胚抗原(CEA)、甲胎蛋白(AFP)〕、MRI影像学特征及定量参数,通过logistic回归模型分析预后影响因素,通过ROC曲线分析MRI定量参数预测复发的价值,进一步通过ROC曲线下面积(AUC)、净重新分类指数(NRI)、综合判别改善指数(IDI)评价含与不含MRI定量参数预测方案的预测效果。结果:完成术后1年随访的98例患者中复发率为45.92%(45/98);复发组肿瘤数目、瘤内坏死、肿瘤直径之比、血清CEA、AFP水平与未复发组比较差异明显(P<0.05);复发与未复发患者MRI影像学特征相近,但复发组HPI、K^(trans)高于未复发组(P<0.05);肿瘤数目、瘤内坏死、肿瘤直径之比、血清CEA、AFP、HPI、K^(trans)均为术后复发的影响因素(P<0.05);HPI、K^(trans)联合预测复发的AUC为0.862,大于二者单独预测(P<0.05)。含与不含MRI定量参数预测方案的AUC(0.930 vs.0.815)比较差异明显(P<0.05)。NRI、IDI分析显示,含MRI定量参数预测方案的预测效果较不含MRI定量参数预测方案有明显改善(P<0.05)。结论:TACE术后合并MVI的PHC患者术后复发受肿瘤数目、瘤内坏死、肿瘤直径之比、血清CEA、AFP、HPI、K^(trans)等因素影响,含MRI定量参数HPI、K^(trans)预测方案对术后复发的预测价值较高。 展开更多
关键词 原发性肝癌 微血管侵犯 肝动脉化疗栓塞术 磁共振成像
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磁共振成像多序列对肝内肿块型胆管细胞癌微血管侵犯的预测价值研究
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作者 陈志林 徐秋贞 +2 位作者 王孝磊 张明府 周成友 《中国CT和MRI杂志》 2024年第7期124-126,共3页
目的探讨磁共振成像(MRI)多序列对肿块型肝内胆管细胞癌(IMCC)微血管侵犯(MVI)的预测价值。方法回顾性分析2017年1月至2023年1月本院收治的80例IMCC患者的临床资料,术前均行MRI多序列扫描。根据病理结果分为MVI组(24例)和非MVI组(56例)... 目的探讨磁共振成像(MRI)多序列对肿块型肝内胆管细胞癌(IMCC)微血管侵犯(MVI)的预测价值。方法回顾性分析2017年1月至2023年1月本院收治的80例IMCC患者的临床资料,术前均行MRI多序列扫描。根据病理结果分为MVI组(24例)和非MVI组(56例),比较两组患者MRI多序列影像特征及相关参数的差异。采用Logistic回归模型确定MVI的影响因素,再通过受试者工作特征曲线(ROC)评估影响因素对MVI的诊断效能。结果本研究IMCC患者中MVI发生率为30.00%。MVI组肿瘤直径、表观扩散系数(ADC)显著高于非MVI组(P<0.05);两组患者之间在肿瘤形态、T1加权图像(T1WI)和T2加权图像(T2WI)信号、有无坏死、强化模式、扩散加权成像(DWI)信号、有无靶征、包膜挛缩以及胆管扩张方面无差异(P>0.05)。采用多因素Logistic回归分析发现ADC值是IMCC患者发生MVI的独立危险因素(P<0.05)。通过绘制ROC曲线分析发现,ADC值预测IMCC患者发生MVI的曲线下面积(AUC)为0.903,敏感度为92.36%,特异度为88.79%,95%CI:85.66%-98.87%;最佳截断阈值为1.45×10^(-3)mm^(2)/s。结论MRI多序列对IMCC患者MVI状态的预测具有良好的诊断效能,其中ADC值可以作为预测MVI发生的独立危险因素,有助于为IMCC患者的精准医疗提供更有价值的术前信息。 展开更多
关键词 磁共振成像 肝内肿块型胆管细胞癌 微血管侵犯 预测价值
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磁共振成像增强扫描及弥散加权成像预测小肝癌微血管侵犯的价值
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作者 张志 瞿刚 +1 位作者 刘朝敏 李进涛 《成都医学院学报》 CAS 2024年第1期84-88,共5页
目的探讨磁共振成像(MRI)增强扫描及弥散加权成像(DWI)预测小肝癌患者微血管侵犯(MVI)的临床价值。方法选取成都医学院第一附属医院2021年5月至2023年5月收治的90例小肝癌患者(术前1周内均接受MRI增强扫描)为研究对象,根据术后病理检查... 目的探讨磁共振成像(MRI)增强扫描及弥散加权成像(DWI)预测小肝癌患者微血管侵犯(MVI)的临床价值。方法选取成都医学院第一附属医院2021年5月至2023年5月收治的90例小肝癌患者(术前1周内均接受MRI增强扫描)为研究对象,根据术后病理检查结果分为MVI阳性组(n=25)和MVI阴性组(n=65),比较两组一般资料、增强扫描特征及DWI参数,采用多因素Logistic回归分析确定MVI的影响因素。基于回归分析结果建立评分模型,绘制评分模型预测小肝癌患者MVI的受试者工作特征(ROC)曲线。结果90例小肝癌患者中MVI阳性率为27.78%(25/90)。MVI阳性组低分化、动脉期瘤周强化、肿瘤边缘不光滑、肝胆期瘤周低信号的占比高于MVI阴性组,而D值、ADC值低于MVI阴性组(P<0.05)。Logistic回归分析显示,动脉期瘤周强化、肿瘤边缘、瘤周低信号、D值、ADC值是小肝癌MVI的影响因素(P<0.05)。根据回归分析建立的评分模型预测小肝癌患者MVI的ROC曲线下面积为0.898,最佳截断值为5分,其敏感度与特异度分别为0.920、0.877。结论MRI增强扫描联合DWI可有效预测小肝癌患者的MVI风险。 展开更多
关键词 磁共振成像 增强扫描 弥散加权成像 小肝癌 微血管侵犯 预测价值
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异常凝血酶原联合甲胎蛋白预测肝细胞癌微血管侵犯的价值研究 被引量:1
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作者 郑华珍 雷秋成 +2 位作者 陈展泽 陈焕伟 李启欣 《国际检验医学杂志》 CAS 2024年第7期790-793,799,共5页
目的探讨术前异常凝血酶原(PIVKA-Ⅱ)联合甲胎蛋白(AFP)预测肝细胞癌(HCC)发生微血管侵犯(MVI)的价值。方法回顾性分析2017年1月1日至2019年12月31日在该院行手术治疗同时病理结果为HCC的104例患者的临床资料。根据是否发生MVI分为MVI... 目的探讨术前异常凝血酶原(PIVKA-Ⅱ)联合甲胎蛋白(AFP)预测肝细胞癌(HCC)发生微血管侵犯(MVI)的价值。方法回顾性分析2017年1月1日至2019年12月31日在该院行手术治疗同时病理结果为HCC的104例患者的临床资料。根据是否发生MVI分为MVI阳性组(38例)和MVI阴性组(66例)。收集患者术前的影像学、PIVKA-Ⅱ、AFP、肝功能等指标,采用单因素及多因素Logistic回归分析HCC发生MVI的影响因素,并通过受试者工作特征(ROC)曲线评估PIVKA-Ⅱ联合AFP预测HCC发生MVI的价值。结果单因素分析显示,肿瘤最大径>3.65 cm、PIVKA-Ⅱ>220 mAU/mL、AFP>305 ng/mL均是HCC发生MVI的危险因素(P<0.05)。多因素分析显示,PIVKA-Ⅱ(OR=3.741,P=0.011)、AFP(OR=3.837,P=0.004)均是HCC发生MVI的独立危险因素。ROC曲线分析显示,PIVKA-Ⅱ和AFP单独检测的灵敏度、特异度和曲线下面积(AUC)分别为76.3%、54.5%、0.709和55.3%、75.8%、0.652;二者联合检测灵敏度、特异度和AUC为78.9%、59.5%、0.719。结论术前PIVKA-Ⅱ>220 mAU/mL、AFP>305 ng/mL均是HCC发生MVI的独立危险因素,二者联合检测能够提高对HCC发生MVI的预测效能。 展开更多
关键词 异常凝血酶原 甲胎蛋白 肝细胞癌 微血管侵犯
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