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中华消化病与影像杂志(电子版) ›› 2025, Vol. 15 ›› Issue (02) : 155 -161. doi: 10.3877/cma.j.issn.2095-2015.2025.02.011

论著

MSCT 肝脏体积测量评估肝硬化患者肝脏功能代偿状态的可行性研究
张志硕1, 王紫仪1, 马宁1,()   
  1. 1. 102600 北京市大兴区人民医院放射科
  • 收稿日期:2024-11-01 出版日期:2025-04-01
  • 通信作者: 马宁

Feasibility study of MSCT liver volume measurement in evaluating liver function compensatory status in patients with liver cirrhosis

Zhishuo Zhang1, Ziyi Wang1, Ning Ma1,()   

  1. 1. Department of Radiology,Beijing Daxing District People's Hospital,Beijing 102600,China
  • Received:2024-11-01 Published:2025-04-01
  • Corresponding author: Ning Ma
引用本文:

张志硕, 王紫仪, 马宁. MSCT 肝脏体积测量评估肝硬化患者肝脏功能代偿状态的可行性研究[J/OL]. 中华消化病与影像杂志(电子版), 2025, 15(02): 155-161.

Zhishuo Zhang, Ziyi Wang, Ning Ma. Feasibility study of MSCT liver volume measurement in evaluating liver function compensatory status in patients with liver cirrhosis[J/OL]. Chinese Journal of Digestion and Medical Imageology(Electronic Edition), 2025, 15(02): 155-161.

目的

分析经临床证实的肝硬化患者的MSCT 检查资料及肝功能Child-Pugh 评分等临床资料,构建基于MSCT 肝脏体积测量的肝脏功能代偿状态评价模型,并验证其准确性和可靠性。

方法

选取2020 年7 月至2023 年7 月于北京市大兴区人民医院接受MSCT 检查170 例肝硬化患者为研究对象,进行回顾性分析。按照3∶1 比例将患者分为建模集、验证集。其中建模集144 例,验证集26 例。建模集根据肝功能分级Child-Pugh 评分分为Child-Pugh A 及B 组、Child-Pugh C 组。比较建模集两组的临床资料差异、CT 参数CT 体积、灌注参数,采用二元Logistic 构建预测模型,采用ROC 曲线、Z 检验。比较各模型的诊断效果。

结果

建模集Child-Pugh C 组肝性脑病、腹水占比、TBIL、INR 高于Child-Pugh A 及B 组,ALB 低于Child-Pugh A 及B 组,差异有统计学意义(P<0.05)。建模集Child-Pugh C 组MTT 长于Child-Pugh A 及B 组,HAF、A/V、尾状叶体积高于Child-Pugh A及B 组;而BF、BV、PVP、HAP、全肝体积、右半肝体积、左内叶体积低于Child-Pugh A 及B 组,CAAT 短于Child-Pugh A 及B 组(P<0.05)。根据多因素Logistic 回归模型分析发现,BF、BV、MTT、HAF、PVP、CAAT、HAP、A/V、全肝体积、右半肝体积、左内叶体积和尾状叶体积均是影响肝硬化患者肝脏功能代偿状态的独立危险因素(P<0.05)。Hosmer-Lemeshow 拟合度检验显示,未加入MSCT 肝脏体积参数预测模型和加入MSCT 肝脏体积参数预测模型差异均无统计学意义(P=0.889、0.388)。Z 检验表明两种预测模型的ROC 曲线下面积之差为0.037(P<0.05)。建模集加入MSCT 肝脏体积参数预测模型ROC AUC 达0.865(95% CI 0.814~0.936),预测效能良好。独立验证集加入MSCT 肝脏体积参数预测模型AUC 为0.749(95% CI 0.622~0.840)。验证集Hosmer-Lemeshow 检验示模型预测与实际值一致性尚可(P=0.084)。

结论

MSCT 肝脏体积测量在评估肝硬化患者肝脏功能代偿状态中展现出良好的应用前景。通过结合MSCT 提供的肝脏体积及灌注参数,能够更准确地评估患者的肝脏功能代偿状态,为临床决策提供支持。

Objective

To analyze the clinical data of MSCT examination and Child-Pugh score of liver function in patients with clinically proven cirrhosis,to establish the evaluation model of liver function compensatory status based on MSCT liver volume measurement,and to verify its accuracy and reliability.

Methods

This study was a retrospective analysis. A total of 170 patients with liver cirrhosis who underwent MSCT examination in Beijing Daxing District People's Hospital from July 2020 to July 2023 were selected as the research objects. The patients were divided into a modeling set and a validation set according to a 3∶1 ratio. There were 144 cases in the modeling set and 26 cases in the validation set.According to the total score of Child-Pugh classification of liver function,the modeling set was divided into two groups: Child-Pugh A and B group and Child-Pugh C group. The differences in clinical data,CT parameters,CT volume and perfusion parameters between the two groups were compared in the modeling set. Binary Logistic regression was used to construct the prediction model,and ROC curve and Z test were used. The diagnostic performance of each model was compared.

Results

In the modeling set,the proportion of hepatic encephalopathy,ascites,TBIL and INR in Child-Pugh C group were higher than those in Child-Pugh A and B group,and ALB was lower than that in Child-Pugh A and B group,with statistically significant differences (P<0.05). In the modeling set,the MTT in Child-Pugh C group was longer than that in Child-Pugh A and B group,and HAF,A/V and caudate lobe volume were higher than those in Child-Pugh A and B group. BF,BV,PVP,HAP,total liver volume,right liver volume and left medial lobe volume were lower than those in Child-Pugh A and B group,and CAAT was shorter than that in Child-Pugh A and B group (P<0.05). According to multivariate Logistic regression model analysis,BF,BV,MTT,HAF,PVP,CAAT,HAP,A/V,total liver volume,right liver volume,left medial lobe volume and caudate lobe volume were all independent risk factors affecting liver function compensatory status in patients with cirrhosis (P<0.05). Hosmer-Lemeshow fit test showed that there were no statistically significant differences between the prediction model of liver volume parameters without MSCT and the prediction model with MSCT (P=0.889,0.388). Z-test showed that the difference of area under ROC curve between the two prediction models was 0.037 (P<0.05). The ROC AUC of liver volume parameter prediction model with MSCT was 0.865 (95% CI: 0.814-0.936),and the prediction efficiency was good.The AUC of liver volume parameter prediction model with MSCT of the independent validation set was 0.749 (95% CI: 0.622-0.840). The Hosmer-Lemeshow test of verification set showed that the model prediction was in good agreement with the actual value (P=0.084).

Conclusion

MSCT liver volume measurement shows a good application prospect in evaluating liver function compensatory status in patients with cirrhosis. By combining the liver volume and perfusion parameters provided by MSCT,the liver function compensatory status of patients can be evaluated more accurately and provide strong support for clinical decision-making.

表1 建模集、验证集一般资料比较
表2 建模集两组的临床资料差异比较
表3 建模集两组的肝脏体积、灌注参数差异比较(± s
表4 多因素Logistic 回归分析影响肝硬化患者肝脏功能代偿状态的独立危险因素
图1 预测模型加入MSCT 肝脏体积参数前后的ROC 曲线
图2 肝硬化患者肝脏功能代偿状态预测模型校准曲线
图3 建模集加入MSCT 肝脏体积参数预测模型对肝硬化患者肝脏功能代偿状态的预测价值ROC 曲线
图4 验证集加入MSCT 肝脏体积参数预测模型对肝硬化患者肝脏功能代偿状态的预测价值ROC 曲线
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