Article(id=1190669165523513572, tenantId=1146029695717560320, journalId=1189873630562394117, issueId=1190669163988398295, articleNumber=null, orderNo=null, doi=10.11855/j.issn.0577-7402.0933.2025.0102, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1719331200000, receivedDateStr=2024-06-26, revisedDate=null, revisedDateStr=null, acceptedDate=1725811200000, acceptedDateStr=2024-09-09, onlineDate=1761807250624, onlineDateStr=2025-10-30, pubDate=1745769600000, pubDateStr=2025-04-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1761807250624, onlineIssueDateStr=2025-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1761807250624, creator=13701087609, updateTime=1761807250624, updator=13701087609, issue=Issue{id=1190669163988398295, tenantId=1146029695717560320, journalId=1189873630562394117, year='2025', volume='50', issue='4', pageStart='367', pageEnd='503', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1761807250258, creator=13701087609, updateTime=1761807667423, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1190670913772339410, tenantId=1146029695717560320, journalId=1189873630562394117, issueId=1190669163988398295, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1190670913772339411, tenantId=1146029695717560320, journalId=1189873630562394117, issueId=1190669163988398295, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=409, endPage=417, ext={EN=ArticleExt(id=1190669165716451558, articleId=1190669165523513572, tenantId=1146029695717560320, journalId=1189873630562394117, language=EN, title=The predictive value of high-kilovoltage CT radiomics for urate crystallization in gouty arthritis, columnId=1190310109000602400, journalTitle=Medical Journal of Chinese People’s Liberation Army, columnName=Clinical Research, runingTitle=null, highlight=null, articleAbstract=
Objective To explore the value of a combined model based on high-kilovoltage CT radiomics and clinical factors for predicting monosodium urate (MSU) crystal deposition in gouty arthritis. Methods The clinical data of 136 patients with MSU crystal deposition adjacent to joints confirmed by dual-energy CT (DECT) and 79 patients with non-MSU calcifications adjacent to joints were retrospectively analyzed. The dataset was randomly divided into a training set (n=150) and a validation set (n=65) at a ratio of 7:3 for the construction of predictive models. Radiomic features were extracted from high-kilovolt (135 kV) images, and 20 radiomic features were selected using minimum redundancy-maximum relevance and least absolute shrinkage and selection operator (LASSO) regression. Logistic regression, light gradient boosting machine (LightGBM), and support vector machine models were built based on the selected features, and the best-performing model was identified. Multivariate logistic regression analysis was used to screen for risk factors associated with MSU crystal deposition adjacent to joints. A nomogram model was then constructed by integrating radiomic features and clinical variables. The diagnostic performance of the models was evaluated by means of the receiver operating characteristics (ROC) area under the curve (AUC). Results Multivariate logistic regression analysis revealed that CT value was an independent risk factor for MSU crystal deposition adjacent to joints (P<0.001). Among the three machine-learning models, the LightGBM model demonstrated the best predictive performance and good dataset robustness. Therefore, the nomogram was constructed using the LightGBM model. The AUCs of the nomogram model for predicting MSU crystal deposition in the training and validation sets were 0.932 and 0.856, respectively, both exceeding 0.85 and significantly higher than those of the clinical model (De-long test, P<0.05). No statistically significant difference was observed between nomogram model and radiomics model (De-long test, P>0.05). Conclusions High-kilovoltage CT radiomics analysis can predict MSU crystal deposition adjacent to joints. The nomogram model and the radiomics model both demonstrate high diagnostic performance, which can provide valuable references for clinical decision-making.
, correspAuthors=Guo-Zheng Zhang, authorNote=null, correspAuthorsNote=
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目的 探讨基于高千伏CT影像组学和临床因素的联合模型预测痛风性关节炎单钠尿酸盐(MSU)结晶的价值。方法 回顾性分析2019年1月-2023年5月在衢州市人民医院经双能CT(DECT)明确诊断为关节旁MSU结晶沉积的136例患者和关节旁非MSU钙化的79例患者的临床资料;按7:3的比例随机分为训练集(n=150)和验证集(n=65)用于预测模型的构建及验证。从高千伏(135 kV)图像中提取影像组学特征,采用最小冗余-最大相关性和最小绝对收缩选择算子(LASSO)回归筛选出20个影像组学特征。采用逻辑回归、光梯度增强机(LightGBM)和支持向量机对所选特征进行建模,并选出性能最佳的模型。采用多因素logistic回归分析筛选关节旁MSU结晶沉积的危险因素,结合影像组学特征和临床变量构建列线图模型。采用受试者操作特征(ROC)曲线下面积(AUC)评价各模型的预测效能。结果 多因素logistic回归分析显示,CT值是关节旁MSU结晶沉积的独立危险因素(P<0.001)。在3种机器学习模型中,LightGBM模型具有最佳的预测性能和良好的数据集鲁棒性,因此采用LightGBM模型构建列线图。列线图模型在训练集和验证集中预测关节旁MSU结晶沉积的AUC分别为0.932和0.856,均高于0.85,明显高于临床模型(De-long检验,P<0.05),但与影像组学模型差异无统计学意义(De-long检验,P>0.05)。结论 基于高千伏CT影像组学分析可预测关节旁MSU结晶沉积,列线图模型及影像组学模型的预测效能均较高,可为临床决策提供参考。
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黄渭涛,硕士研究生,主要从事人工智能及影像组学方面的研究
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Flowchart of the process of inclusion and exclusion of participants in the study, figureFileSmall=zBO+n66DM6sofx/3uSMW6g==, figureFileBig=yxrpL4W4UBs7Mq37M7hvew==, tableContent=null), ArticleFig(id=1190669411267785636, tenantId=1146029695717560320, journalId=1189873630562394117, articleId=1190669165523513572, language=CN, label=图1, caption=
研究对象纳入与排除的流程图DECT. 双能CT; MSU. 单钠尿酸盐
, figureFileSmall=zBO+n66DM6sofx/3uSMW6g==, figureFileBig=yxrpL4W4UBs7Mq37M7hvew==, tableContent=null), ArticleFig(id=1190669411431363493, tenantId=1146029695717560320, journalId=1189873630562394117, articleId=1190669165523513572, language=EN, label=Fig.2, caption=
The flowchart of to build a combined model for predicting monosodium urate (MSU) crystal deposition in gouty arthritis, figureFileSmall=Aah+6dem9kkT1gUTe28SOw==, figureFileBig=tli5p+G0qiTyVr4HDm/NAA==, tableContent=null), ArticleFig(id=1190669411485889446, tenantId=1146029695717560320, journalId=1189873630562394117, articleId=1190669165523513572, language=CN, label=图2, caption=
痛风性关节炎单钠尿酸盐(MSU)结晶联合预测模型的构建流程图ROI. 感兴趣区;LASSO. 最小绝对收缩和选择算子;A. MSU结晶ROI的分割;B.从ROI和LASSO回归中提取影像组学特征用于特征分割;C. 构建影像组学列线图
, figureFileSmall=Aah+6dem9kkT1gUTe28SOw==, figureFileBig=tli5p+G0qiTyVr4HDm/NAA==, tableContent=null), ArticleFig(id=1190669411548804007, tenantId=1146029695717560320, journalId=1189873630562394117, articleId=1190669165523513572, language=EN, label=Fig.3, caption=
Imaging radiomics feature selection using the least absolute shrinkage and selection operator (LASSO) regression model, figureFileSmall=aXLhIyypovKeJlZXAC0ogw==, figureFileBig=+3quv+ANlqHl+fOnW1shQQ==, tableContent=null), ArticleFig(id=1190669411620107176, tenantId=1146029695717560320, journalId=1189873630562394117, articleId=1190669165523513572, language=CN, label=图3, caption=
采用最小绝对收缩和选择算子(LASSO)回归模型进行影像组学特征选择MSE. 均方误差;A. 使用LASSO回归模型进行影像组学特征选择,根据最小准则使用5折交叉验证确定最佳的参数λ(λ=0.0687),在最优λ=0.0687处绘制垂直虚线;B. 1843个影像组学特征的LASSO系数分布图,最终垂直线处20个影像学特征被保留
, figureFileSmall=aXLhIyypovKeJlZXAC0ogw==, figureFileBig=+3quv+ANlqHl+fOnW1shQQ==, tableContent=null), ArticleFig(id=1190669411678827433, tenantId=1146029695717560320, journalId=1189873630562394117, articleId=1190669165523513572, language=EN, label=Fig.4, caption=
The weight values of the 20 imaging radiomics features were calculated, figureFileSmall=fS00Bm7p+TOFEuJkNFJ3Xw==, figureFileBig=PNnJpreRP8EHqG8q+Fozuw==, tableContent=null), ArticleFig(id=1190669411737547690, tenantId=1146029695717560320, journalId=1189873630562394117, articleId=1190669165523513572, language=CN, label=图4, caption=
20个影像组学特征的权重数值LBP. 局部二值变换;M1、M2. 表示某种特定的模式或版本;GLSZM. 灰度级区域大小矩阵;GLCM. 灰度共生矩阵;GLRLM. 灰度级长跑矩阵;特征的系数越大提示其对结果影响越大
, figureFileSmall=fS00Bm7p+TOFEuJkNFJ3Xw==, figureFileBig=PNnJpreRP8EHqG8q+Fozuw==, tableContent=null), ArticleFig(id=1190669411813045163, tenantId=1146029695717560320, journalId=1189873630562394117, articleId=1190669165523513572, language=EN, label=Fig.5, caption=
The ROC curves of the three machine learning models in train set and validation set, figureFileSmall=fZRwQH2I7KNudQuzt9kYFA==, figureFileBig=bGXb/zEeMNz0yM+PklXAzw==, tableContent=null), ArticleFig(id=1190669411884348332, tenantId=1146029695717560320, journalId=1189873630562394117, articleId=1190669165523513572, language=CN, label=图5, caption=
三种机器学习模型在训练集和验证集中的ROC曲线逻辑回归(LR)、支持向量机(SVM)和光梯度增强机(LightGBM)机器学习模型在训练集(A)和验证集(B)中对应的ROC曲线,LightGBM模型在验证集中表现最好
, figureFileSmall=fZRwQH2I7KNudQuzt9kYFA==, figureFileBig=bGXb/zEeMNz0yM+PklXAzw==, tableContent=null), ArticleFig(id=1190669411947262893, tenantId=1146029695717560320, journalId=1189873630562394117, articleId=1190669165523513572, language=EN, label=Fig.6, caption=
Performance of the Nomogram model for prediction of monosodium urate (MSU) crystals, figureFileSmall=E+ASMOFtPF1Ln7PFbkdAuA==, figureFileBig=gR8thqysCGim5F2RAJyobw==, tableContent=null), ArticleFig(id=1190669411997594542, tenantId=1146029695717560320, journalId=1189873630562394117, articleId=1190669165523513572, language=CN, label=图6, caption=
列线图模型预测MSU结晶沉积的效能MSU. 单钠尿酸盐;A. 基于影像组学模型和有意义的临床因素构建的列线图模型;B. 临床模型、影像组学模型及列线图模型在训练集和验证集中的校准曲线,校准曲线表示拟合优度,45°虚线表示理想预测值,实线表示3种模型的预测效能。预测结果越接近理想预测线,模型的预测效果越好;C. 3种模型在训练集和验证集中的ROC曲线,列线图模型和影像组学模型的AUC值均>0.85,优于临床模型
, figureFileSmall=E+ASMOFtPF1Ln7PFbkdAuA==, figureFileBig=gR8thqysCGim5F2RAJyobw==, tableContent=null), ArticleFig(id=1190669412064703407, tenantId=1146029695717560320, journalId=1189873630562394117, articleId=1190669165523513572, language=EN, label=Fig.7, caption=
Decision curve analysis of the three models in the training set (A) and validation set (B), figureFileSmall=PEdYL1bVkNUhmncEMpntrA==, figureFileBig=XI+nqoCSGnJApMRIBg/ExA==, tableContent=null), ArticleFig(id=1190669412119229360, tenantId=1146029695717560320, journalId=1189873630562394117, articleId=1190669165523513572, language=CN, label=图7, caption=
三种预测模型在训练集(A)及验证集(B)中的决策曲线分析MSU. 单钠尿酸盐;Y轴是净收益,X轴表示阈值概率。蓝色、橙色和绿色线条分别表示临床模型、影像模型和列线图模型的净收益。与其他两种模型和简单诊断如所有患者均有MSU结晶(黑实线)或所有患者均无MSU结晶(黑虚线)相比,影像组学模型和列线图模型具有较高的净效益
, figureFileSmall=PEdYL1bVkNUhmncEMpntrA==, figureFileBig=XI+nqoCSGnJApMRIBg/ExA==, tableContent=null), ArticleFig(id=1190669412190532529, tenantId=1146029695717560320, journalId=1189873630562394117, articleId=1190669165523513572, language=EN, label=Fig.8, caption=
Nomogram score and the result of dual-energy CT (DECT) of one patient with gouty arthritis of the 1st interphalangeal joint of the left foot, figureFileSmall=iseSvaQldBflwTMKFFFtxQ==, figureFileBig=ZxuwWR7mvnHbZBTL85kXwQ==, tableContent=null), ArticleFig(id=1190669412278612914, tenantId=1146029695717560320, journalId=1189873630562394117, articleId=1190669165523513572, language=CN, label=图8, caption=
1例左足第1趾间关节痛风性关节炎患者列线图评分与双能CT(DECT)检查结果MSU. 单钠尿酸盐;A. 列线图评分为111分;B. 经DECT检查后重建处理显示左足第1趾间关节旁MSU结晶沉积,MSU结晶发生概率>0.75
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Comparison of clinical data between two groups of patients
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| 指标 | 训练集(n=150) | 验证集(n=65) |
|---|
| MSU结晶(n=93) | 非MSU钙化(n=57) | P | MSU结晶(n=43) | 非MSU钙化(n=22) | P |
|---|
| 年龄(岁, x±s) | 58.4±17.4 | 57.3±16.1 | 0.624 | 58.5±16.2 | 58.9±16.5 | 0.622 |
| 血清尿酸(μmol/L, x±s) | 612.29±559.16 | 554.17±128.80 | 0.498 | 520.88±147.31 | 530.48±129.97 | 0.830 |
| CT值(HU, x±s) | 362.43±182.49 | 680.84±290.05 | <0.001 | 358.49±202.93 | 696.50±299.42 | <0.001 |
| 性别[例(%)] | | | 0.444 | | | 0.731 |
| 男 | 89(95.7) | 52(91.2) | | 43(100.0) | 21(95.5) | |
| 女 | 4(4.3) | 5(8.8) | | 0 | 1(4.5) | |
| 关节面侵蚀[例(%)] | 63(67.7) | 34(59.6) | 0.406 | 27(62.8) | 15(68.2) | 0.876 |
| 高血压[例(%)] | 25(26.9) | 40(70.2) | 1.000 | 13(30.2) | 12(54.5) | 0.102 |
| 糖尿病[例(%)] | 14(15.1) | 23(40.4) | <0.001 | 8(18.6) | 6(27.3) | 0.627 |
| 肾结石[例(%)] | 25(26.9) | 28(49.1) | 0.010 | 11(25.6) | 16(72.7) | <0.001 |
| 饮酒史[例(%)] | 37(39.8) | 27(47.4) | 0.458 | 12(27.9) | 16(72.7) | 0.284 |
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两组患者临床资料比较
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| 指标 | 训练集(n=150) | 验证集(n=65) |
|---|
| MSU结晶(n=93) | 非MSU钙化(n=57) | P | MSU结晶(n=43) | 非MSU钙化(n=22) | P |
|---|
| 年龄(岁, x±s) | 58.4±17.4 | 57.3±16.1 | 0.624 | 58.5±16.2 | 58.9±16.5 | 0.622 |
| 血清尿酸(μmol/L, x±s) | 612.29±559.16 | 554.17±128.80 | 0.498 | 520.88±147.31 | 530.48±129.97 | 0.830 |
| CT值(HU, x±s) | 362.43±182.49 | 680.84±290.05 | <0.001 | 358.49±202.93 | 696.50±299.42 | <0.001 |
| 性别[例(%)] | | | 0.444 | | | 0.731 |
| 男 | 89(95.7) | 52(91.2) | | 43(100.0) | 21(95.5) | |
| 女 | 4(4.3) | 5(8.8) | | 0 | 1(4.5) | |
| 关节面侵蚀[例(%)] | 63(67.7) | 34(59.6) | 0.406 | 27(62.8) | 15(68.2) | 0.876 |
| 高血压[例(%)] | 25(26.9) | 40(70.2) | 1.000 | 13(30.2) | 12(54.5) | 0.102 |
| 糖尿病[例(%)] | 14(15.1) | 23(40.4) | <0.001 | 8(18.6) | 6(27.3) | 0.627 |
| 肾结石[例(%)] | 25(26.9) | 28(49.1) | 0.010 | 11(25.6) | 16(72.7) | <0.001 |
| 饮酒史[例(%)] | 37(39.8) | 27(47.4) | 0.458 | 12(27.9) | 16(72.7) | 0.284 |
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Univariate and multivariate logistic regression analysis on risk factors of monosodium urate (MSU)
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| 因素 | 单因素logistic回归 | 多因素logistic回归 |
|---|
| OR(95%CI) | P | OR(95%CI) | P |
|---|
| 肾结石 | 0.795(0.695~0.909) | 0.005 | 0.996(0.879~1.129) | 0.957 |
| 糖尿病 | 0.726(0.626~0.84) | 0.000 | 0.905(0.789~1.04) | 0.235 |
| 饮酒史 | 0.93(0.814~1.062) | 0.365 | | |
| 高血压 | 0.992(0.868~1.133) | 0.920 | | |
| CT值 | 0.999(0.999~0.999) | 0.000 | 0.999(0.999~0.999) | <0.001 |
| 血清尿酸 | 1.000(1.000~1.000) | 0.442 | | |
| 年龄 | 1.001(0.997~1.005) | 0.681 | | |
| 关节侵蚀 | 1.087(0.947~1.247) | 0.317 | | |
| 性别 | 1.205(0.914~1.59) | 0.266 | | |
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单钠尿酸盐(MSU)结晶沉积危险因素的单因素和多因素logistic回归分析
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| 因素 | 单因素logistic回归 | 多因素logistic回归 |
|---|
| OR(95%CI) | P | OR(95%CI) | P |
|---|
| 肾结石 | 0.795(0.695~0.909) | 0.005 | 0.996(0.879~1.129) | 0.957 |
| 糖尿病 | 0.726(0.626~0.84) | 0.000 | 0.905(0.789~1.04) | 0.235 |
| 饮酒史 | 0.93(0.814~1.062) | 0.365 | | |
| 高血压 | 0.992(0.868~1.133) | 0.920 | | |
| CT值 | 0.999(0.999~0.999) | 0.000 | 0.999(0.999~0.999) | <0.001 |
| 血清尿酸 | 1.000(1.000~1.000) | 0.442 | | |
| 年龄 | 1.001(0.997~1.005) | 0.681 | | |
| 关节侵蚀 | 1.087(0.947~1.247) | 0.317 | | |
| 性别 | 1.205(0.914~1.59) | 0.266 | | |
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Predicting efficiency of the three models
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| 模型 | 训练集(n=150) | 验证集(n=65) |
|---|
| AUC(95%CI) | 敏感度 | 特异度 | 准确度 | AUC(95%CI) | 敏感度 | 特异度 | 准确度 |
|---|
| LR | 0.878(0.821~0.934) | 0.857 | 0.789 | 0.814 | 0.863(0.750~0.977) | 0.750 | 0.889 | 0.837 |
| LightGBM | 0.930(0.894~0.966) | 0.968 | 0.743 | 0.826 | 0.866(0.751~0.981) | 0.750 | 0.889 | 0.837 |
| SVM | 0.928(0.879~0.977) | 0.794 | 0.972 | 0.907 | 0.898(0.795~1.000) | 0.750 | 1.000 | 0.907 |
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三种模型的预测效能
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| 模型 | 训练集(n=150) | 验证集(n=65) |
|---|
| AUC(95%CI) | 敏感度 | 特异度 | 准确度 | AUC(95%CI) | 敏感度 | 特异度 | 准确度 |
|---|
| LR | 0.878(0.821~0.934) | 0.857 | 0.789 | 0.814 | 0.863(0.750~0.977) | 0.750 | 0.889 | 0.837 |
| LightGBM | 0.930(0.894~0.966) | 0.968 | 0.743 | 0.826 | 0.866(0.751~0.981) | 0.750 | 0.889 | 0.837 |
| SVM | 0.928(0.879~0.977) | 0.794 | 0.972 | 0.907 | 0.898(0.795~1.000) | 0.750 | 1.000 | 0.907 |
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Diagnostic efficacy of monosodium urate (MSU) crystals of three models in the validation set and validation set
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| 模型 | AUC(95%CI) | 准确度 | 敏感度 | 特异度 |
|---|
| 训练集 | | | | |
| 临床模型 | 0.849(0.790~0.908) | 0.791 | 0.746 | 0.840 |
| 影像组学模型 | 0.930(0.894~0.966) | 0.826 | 0.968 | 0.743 |
| 列线图模型 | 0.932(0.898~0.966) | 0.837 | 0.873 | 0.817 |
| 验证集 | | | | |
| 临床模型 | 0.803(0.646~0.961) | 0.837 | 0.812 | 0.885 |
| 影像组学模型 | 0.866(0.751~0.981) | 0.837 | 0.750 | 0.889 |
| 列线图模型 | 0.856(0.726~0.987) | 0.837 | 0.812 | 0.862 |
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三种模型在验证集和验证集中对MSU结晶沉积的预测效能
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| 模型 | AUC(95%CI) | 准确度 | 敏感度 | 特异度 |
|---|
| 训练集 | | | | |
| 临床模型 | 0.849(0.790~0.908) | 0.791 | 0.746 | 0.840 |
| 影像组学模型 | 0.930(0.894~0.966) | 0.826 | 0.968 | 0.743 |
| 列线图模型 | 0.932(0.898~0.966) | 0.837 | 0.873 | 0.817 |
| 验证集 | | | | |
| 临床模型 | 0.803(0.646~0.961) | 0.837 | 0.812 | 0.885 |
| 影像组学模型 | 0.866(0.751~0.981) | 0.837 | 0.750 | 0.889 |
| 列线图模型 | 0.856(0.726~0.987) | 0.837 | 0.812 | 0.862 |
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