Article(id=1322191026308104400, tenantId=1146029695717560320, journalId=1319373162502258839, issueId=1322191025829953744, articleNumber=null, orderNo=null, doi=10.16016/j.2097-0927.202503004, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1740931200000, receivedDateStr=2025-03-03, revisedDate=1743523200000, revisedDateStr=2025-04-02, acceptedDate=null, acceptedDateStr=null, onlineDate=1793164505793, onlineDateStr=2026-10-28, pubDate=1753804800000, pubDateStr=2025-07-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793164505793, onlineIssueDateStr=2026-10-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793164505793, creator=13701087609, updateTime=1793164505793, updator=13701087609, issue=Issue{id=1322191025829953744, tenantId=1146029695717560320, journalId=1319373162502258839, year='2025', volume='47', issue='14', pageStart='1557', pageEnd='1684', issueExtLink='null', onlineDate='null', pubDate='1753804800000', pubDateStr='2025-07-30', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1793164505679, creator='13701087609', updateTime=1793164547848, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322191202804420934, tenantId=1146029695717560320, journalId=1319373162502258839, issueId=1322191025829953744, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322191202804420935, tenantId=1146029695717560320, journalId=1319373162502258839, issueId=1322191025829953744, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1587, endPage=1594, ext={EN=ArticleExt(id=1322191026505236689, articleId=1322191026308104400, tenantId=1146029695717560320, journalId=1319373162502258839, language=EN, title=Clinical application of combined CT radiomics and clinical features in survival prediction for pancreatic ductal adenocarcinoma patients, columnId=1320442291748192970, journalTitle=Journal of Army Medical University, columnName=Monographic Reports, runingTitle=null, highlight=null, articleAbstract=
Objective To develop a CT radiomics-based prediction model for prognosis of pancreatic ductal adenocarcinoma (PDAC) in order to provide evidence for individualized treatment decisions.
Methods A retrospective study was carried on 118 PDAC patients admitted in the First Affiliated Hospital of Army Medical University between January 2020 and December 2023. They were assigned into a training group (n=83) and a validation group (n=35) at a 7∶3 ratio. ITK-SNAP software was used to perform 3-D segmentation on the preoperatively enhanced arterial phase CT images, and radiomic features were extracted using pyradiomics. High-reproducibility features were selected through ICC analysis (>0.85), and core features were determined using LASSO regression to construct the Rad-score. Cox regression analysis was employed to develop both a radiomics model and a model integrating radiomic and clinical features for predicting overall survival in PDAC patients. Receiver operating characteristic (ROC) curves and calibration curves were plotted to evaluate the prognostic models for survival prediction.
Results From 1 453 extracted radiomic features, 7 core features were finally selected to construct the Rad-score. The radiomics prediction model based on the Rad-score achieved an AUC value of 0.796 (95%CI: 0.702~0.890) and 0.744 (95%CI: 0.589~0.899) for 1-year survival prediction in the training and validation groups, respectively. The integrated model combining 2 types of features together demonstrated improved performance with an AUC value of 0.906 (95%CI: 0.842~0.970) and 0.872 (95%CI: 0.753~0.992) in the 2 groups. Calibration curve analysis indicated good prediction accuracy for both models.
Conclusion Both the CT radiomics-based model and the integrated model incorporating clinical features demonstrate good predictive performance for survival outcomes.
, authors=Ke LI
1, 2, Jiafei CHEN
1, Jing YANG
1, Wei CHEN
1, authorsList=Ke LI, Jiafei CHEN, Jing YANG, Wei CHEN, authorCompany=null, correspAuthors=Wei CHEN, authorNote=null, correspAuthorsNote=null, copyrightStatement=© 2025 Journal of Army Medical University, copyrightOwner=Editorial Office of Journal of Army Medical University, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1322191027671253212, articleId=1322191026308104400, tenantId=1146029695717560320, journalId=1319373162502258839, language=CN, title=CT影像组学联合临床特征对胰腺导管腺癌患者生存预测的应用研究, columnId=1322190423666315871, journalTitle=陆军军医大学学报, columnName=专题报道, runingTitle=null, highlight=null, articleAbstract=
目的 构建基于CT影像组学的胰腺导管腺癌(pancreatic ductal adenocarcinoma,PDAC)预后预测模型,为个体化治疗决策提供依据。
方法 回顾性纳入2020年1月至2023年12月在陆军军医大学第一附属医院就诊的118例PDAC患者,按7∶3比例将患者分为训练组(n=83)和验证组(n=35)。采用ITK-SNAP软件对术前增强CT动脉期图像进行3D分割,通过pyradiomics提取影像组学特征。经ICC分析(>0.85)筛选高重复性特征,采用LASSO回归确定核心特征并构建Rad-score。基于Cox回归分析构建影像组学模型及联合临床特征的综合模型,用于预测PDAC患者总生存时间。采用受试者工作特征(ROC)曲线及校准曲线对模型进行评价。
结果 共提取1 453个影像组学特征,经筛选最终确定7个核心特征构建Rad-score。基于Rad-score构建的影像组学预测模型在训练组和验证组的1年生存预测AUC分别为0.796(95%CI:0.702~0.890)和0.744(95%CI:0.589~0.899)。联合临床特征的综合预测模型分别为0.906(95%CI:0.842~0.970)和0.872(95%CI:0.753~0.992)。校准曲线显示模型具有良好的预测准确性。
结论 基于CT影像特征构建的影像组学模型和联合临床特征的综合预测模型具有良好的生存时间预测效能。
, authors=李可
1, 2, 陈家飞
1, 杨靖
1, 陈伟
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1Department of Radiology,First Affiliated Hospital,Army Medical University (Third Military Medical University),Chongqing, Sichuan Corps Hospital of Chinese People’s Armed Police Force,Leshan,Sichuan,China), AuthorCompanyExt(id=1322191027885162719, tenantId=1146029695717560320, journalId=1319373162502258839, articleId=1322191026308104400, companyId=1322191027872579805, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1陆军军医大学(第三军医大学):第一附属医院放射科,重庆,四川乐山)]), AuthorCompany(id=1322191027956465888, tenantId=1146029695717560320, journalId=1319373162502258839, articleId=1322191026308104400, xref=2, ext=[AuthorCompanyExt(id=1322191027964854497, tenantId=1146029695717560320, journalId=1319373162502258839, articleId=1322191026308104400, companyId=1322191027956465888, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2Department of Medical Imaging, Sichuan Corps Hospital of Chinese People’s Armed Police Force,Leshan,Sichuan,China), AuthorCompanyExt(id=1322191027973243106, tenantId=1146029695717560320, journalId=1319373162502258839, articleId=1322191026308104400, companyId=1322191027956465888, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2陆军军医大学(第三军医大学):武警四川总队医院医学影像科,四川 乐山)])], figs=[ArticleFig(id=1322191031110582528, tenantId=1146029695717560320, journalId=1319373162502258839, articleId=1322191026308104400, language=EN, label=null, caption=null, figureFileSmall=QBMmvChAEtP+IRO9imJyKg==, figureFileBig=COcbKJw870ytRrVBWCFnGA==, tableContent=null), ArticleFig(id=1322191031181885697, tenantId=1146029695717560320, journalId=1319373162502258839, articleId=1322191026308104400, language=CN, label=图1, caption=
患者纳入与排除流程图, figureFileSmall=QBMmvChAEtP+IRO9imJyKg==, figureFileBig=COcbKJw870ytRrVBWCFnGA==, tableContent=null), ArticleFig(id=1322191031370629378, tenantId=1146029695717560320, journalId=1319373162502258839, articleId=1322191026308104400, language=EN, label=null, caption=null, figureFileSmall=MLYgzCRmY0HPutyCgIxcBw==, figureFileBig=44xGNEvHW6HbyyZViBO+xw==, tableContent=null), ArticleFig(id=1322191031441932547, tenantId=1146029695717560320, journalId=1319373162502258839, articleId=1322191026308104400, language=CN, label=图2, caption=
PDAC图像分割示意图A:原始增强CT动脉期图像,绿色箭头示病灶;B:单层ROI勾画;C:3D ROI提取;D:HE染色(×100)
, figureFileSmall=MLYgzCRmY0HPutyCgIxcBw==, figureFileBig=44xGNEvHW6HbyyZViBO+xw==, tableContent=null), ArticleFig(id=1322191031513235716, tenantId=1146029695717560320, journalId=1319373162502258839, articleId=1322191026308104400, language=EN, label=null, caption=null, figureFileSmall=xYlCkJYtZ9ehEHcIP6ZwKA==, figureFileBig=1/QXSBxgI0UYtEv5iqQSnQ==, tableContent=null), ArticleFig(id=1322191031609704709, tenantId=1146029695717560320, journalId=1319373162502258839, articleId=1322191026308104400, language=CN, label=图3, caption=
基于LASSO回归的影像组学特征筛选结果A:LASSO回归系数曲线,随着Lambda(λ)值增加,特征系数逐渐趋近于零;B:通过10倍交叉验证确定最优Lambda值,虚线表示最优λ值对应的特征数量;C:最终筛选出的7个影像组学特征的危险比(HR)森林图
, figureFileSmall=xYlCkJYtZ9ehEHcIP6ZwKA==, figureFileBig=1/QXSBxgI0UYtEv5iqQSnQ==, tableContent=null), ArticleFig(id=1322191031706173702, tenantId=1146029695717560320, journalId=1319373162502258839, articleId=1322191026308104400, language=EN, label=null, caption=null, figureFileSmall=XKmIgSH+r1lGEGxfuMef0A==, figureFileBig=zMidylFaJCiR54uZ5rWHew==, tableContent=null), ArticleFig(id=1322191031777476871, tenantId=1146029695717560320, journalId=1319373162502258839, articleId=1322191026308104400, language=CN, label=图4, caption=
基于影像组学特征的风险预测模型分析结果A:患者的风险评分(Rad-score)分布;B:患者生存状态散点图,红色表示死亡事件,绿色表示存活或失访;C:筛选出的关键影像组学特征表达热图,红色表示高表达,蓝色表示低表达,颜色深浅代表特征表达水平;D:训练组中高低风险组K-M生存曲线对比;E:验证组中高低风险组K-M生存曲线对比
, figureFileSmall=XKmIgSH+r1lGEGxfuMef0A==, figureFileBig=zMidylFaJCiR54uZ5rWHew==, tableContent=null), ArticleFig(id=1322191031915888904, tenantId=1146029695717560320, journalId=1319373162502258839, articleId=1322191026308104400, language=EN, label=null, caption=null, figureFileSmall=jqvc2CCGWwCgh5n03aqoSw==, figureFileBig=b/ICb8zPbN1j5vaBNNSKLg==, tableContent=null), ArticleFig(id=1322191031995580681, tenantId=1146029695717560320, journalId=1319373162502258839, articleId=1322191026308104400, language=CN, label=图5, caption=
PDAC患者预后预测模型的评价结果A:基于Rad-score和临床特征(肿瘤位置、肿瘤最大直径、CA199)构建的预后预测列线图;B:训练组中单纯影像组学模型(AUC=0.796,95%CI:0.702~0.890)和综合预测模型(AUC=0.906,95%CI:0.842~0.970)的ROC曲线比较;C:验证组中单纯影像组学模型(AUC=0.744,95%CI:0.589~0.899)和综合预测模型(AUC=0.872,95%CI:0.753~0.992)的ROC曲线比较;D:训练组中模型预测的1年生存概率校准曲线;E:验证组中模型预测的1年生存概率校准曲线;校准曲线显示预测值与实际观察值具有良好的一致性
, figureFileSmall=jqvc2CCGWwCgh5n03aqoSw==, figureFileBig=b/ICb8zPbN1j5vaBNNSKLg==, tableContent=null), ArticleFig(id=1322191032058495242, tenantId=1146029695717560320, journalId=1319373162502258839, articleId=1322191026308104400, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 临床特征 | 训练组(n=83) | 验证组(n=35) | t/χ2 | P值 |
|---|
| 年龄/岁 | 55.39±9.69 | 55.77±9.85 | 0.197 | 0.844 |
| 肿瘤最大直径/cm | 3.31±1.02 | 3.40±0.97 | 0.414 | 0.679 |
| 性别 | | | 0.192 | 0.661 |
| 女 | 32(38.55) | 12(34.29) | | |
| 男 | 51(61.45) | 23(65.71) | | |
| CEA/(μg/L) | | | 0.003 | 0.954 |
| <5 | 55(66.27) | 23(65.71) | | |
| ≥5 | 28(33.73) | 12(34.29) | | |
| CA125/(U/mL) | | | 2.083 | 0.149 |
| <35 | 61(73.49) | 30(85.71) | | |
| ≥35 | 22(26.51) | 5(14.29) | | |
| CA199/(U/mL) | | | 0.192 | 0.661 |
| <37 | 32(38.55) | 12(34.29) | | |
| ≥37 | 51(61.45) | 23(65.71) | | |
| 肿瘤位置 | | | 2.613 | 0.106 |
| 胰体/尾 | 14(16.87) | 2(5.71) | | |
| 胰头 | 69(83.13) | 33(94.29) | | |
), ArticleFig(id=1322191032150769931, tenantId=1146029695717560320, journalId=1319373162502258839, articleId=1322191026308104400, language=CN, label=表1, caption=
PDAC患者一般资料 [例(%),±s]
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| 临床特征 | 训练组(n=83) | 验证组(n=35) | t/χ2 | P值 |
|---|
| 年龄/岁 | 55.39±9.69 | 55.77±9.85 | 0.197 | 0.844 |
| 肿瘤最大直径/cm | 3.31±1.02 | 3.40±0.97 | 0.414 | 0.679 |
| 性别 | | | 0.192 | 0.661 |
| 女 | 32(38.55) | 12(34.29) | | |
| 男 | 51(61.45) | 23(65.71) | | |
| CEA/(μg/L) | | | 0.003 | 0.954 |
| <5 | 55(66.27) | 23(65.71) | | |
| ≥5 | 28(33.73) | 12(34.29) | | |
| CA125/(U/mL) | | | 2.083 | 0.149 |
| <35 | 61(73.49) | 30(85.71) | | |
| ≥35 | 22(26.51) | 5(14.29) | | |
| CA199/(U/mL) | | | 0.192 | 0.661 |
| <37 | 32(38.55) | 12(34.29) | | |
| ≥37 | 51(61.45) | 23(65.71) | | |
| 肿瘤位置 | | | 2.613 | 0.106 |
| 胰体/尾 | 14(16.87) | 2(5.71) | | |
| 胰头 | 69(83.13) | 33(94.29) | | |
), ArticleFig(id=1322191032331125004, tenantId=1146029695717560320, journalId=1319373162502258839, articleId=1322191026308104400, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 特征 | 单因素Cox回归分析 | 多因素Cox回归分析 |
|---|
| HR值 | 95%CI | P值 | HR值 | 95%CI | P值 |
|---|
| 年龄 | 0.996 | 0.969~1.024 | 0.778 | | | |
| 肿瘤最大直径 | 1.427 | 0.849~2.397 | 0.180 | 2.466 | 0.960~3.098 | 0.580 |
| 性别(女性vs男性) | 1.009 | 0.584~1.741 | 0.976 | | | |
| CEA(<5 μg/L vs ≥5 μg/L) | 0.839 | 0.445~1.580 | 0.586 | | | |
| CA125(<35 U/mL vs ≥35 U/mL) | 1.529 | 0.831~2.815 | 0.173 | | | |
| CA199(<37 U/mL vs ≥37 U/mL) | 1.686 | 0.746~3.809 | 0.209 | 1.725 | 0.960~3.098 | 0.068 |
| 肿瘤位置(胰体/尾vs胰头) | 2.545 | 1.746~3.709 | <0.001 | 1.764 | 0.885~3.516 | 0.107 |
| Rad-score | 1.891 | 1.412~2.532 | <0.001 | 1.856 | 1.395~2.469 | <0.001 |
), ArticleFig(id=1322191032398233869, tenantId=1146029695717560320, journalId=1319373162502258839, articleId=1322191026308104400, language=CN, label=表2, caption=
PDAC患者生存预后影响因素的单因素及多因素Cox回归建模
, figureFileSmall=null, figureFileBig=null, tableContent=
| 特征 | 单因素Cox回归分析 | 多因素Cox回归分析 |
|---|
| HR值 | 95%CI | P值 | HR值 | 95%CI | P值 |
|---|
| 年龄 | 0.996 | 0.969~1.024 | 0.778 | | | |
| 肿瘤最大直径 | 1.427 | 0.849~2.397 | 0.180 | 2.466 | 0.960~3.098 | 0.580 |
| 性别(女性vs男性) | 1.009 | 0.584~1.741 | 0.976 | | | |
| CEA(<5 μg/L vs ≥5 μg/L) | 0.839 | 0.445~1.580 | 0.586 | | | |
| CA125(<35 U/mL vs ≥35 U/mL) | 1.529 | 0.831~2.815 | 0.173 | | | |
| CA199(<37 U/mL vs ≥37 U/mL) | 1.686 | 0.746~3.809 | 0.209 | 1.725 | 0.960~3.098 | 0.068 |
| 肿瘤位置(胰体/尾vs胰头) | 2.545 | 1.746~3.709 | <0.001 | 1.764 | 0.885~3.516 | 0.107 |
| Rad-score | 1.891 | 1.412~2.532 | <0.001 | 1.856 | 1.395~2.469 | <0.001 |
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