Portovenous phase enhanced CT texture analysis of hepatic alveolar echinococcosis for predicting extrahepatic metastasis
10.13929/j.issn.1003-3289.2024.09.017
- VernacularTitle:肝泡型棘球蚴病门静脉期增强CT纹理分析预测其肝外转移
- Author:
AYINUER·Teliewubieergen
1
,
2
;
Juan HOU
;
Simiao ZHANG
;
Wenya LIU
Author Information
1. 新疆医科大学第一附属医院影像中心,新疆乌鲁木齐 830054
2. 阿勒泰地区人民医院放射科,新疆阿勒泰 836500
- Keywords:
echinococcosis,hepatic;
tomography,X-ray computed;
metastasis;
texture analysis
- From:
Chinese Journal of Medical Imaging Technology
2024;40(9):1357-1360
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the value of portovenous phase enhanced CT texture analysis of hepatic alveolar echinococcosis(HAE)for predicting extrahepatic metastasis.Methods A total of 105 patients with HAE confirmed by pathology were retrospectively collected.The patients were divided into metastatic group(n=55)and non-metastatic group(n=50)according to findings of preoperative imaging.Based on preoperative abdominal portovenous phase enhanced CT images,the grayscale histogram texture feature parameters of intrahepatic lesions,including mean,variance,skewness,kurtosis,and the 1,10,50,90,and 99th percentiles(recorded as Perc1,Perc10,Perc50,Perc90,and Perc99)were extracted using MaZda software.Univariate and multivariate logistic regression were used to analyze the histogram texture parameters and screen independent predictors of extrahepatic metastasis of HAE.Then receiver operating characteristic(ROC)curve was drawn,and the area under the curve(AUC)was calculated to evaluate the efficacy of each independent predictor alone and their combination for predicting extrahepatic metastasis of HAE.Results The mean and skewness were both independent predictors of extrahepatic metastasis of HAE(both P＜0.05),with AUC of 0.853 and 0.850 for predicting HAE extrahepatic metastasis,respectively,while the AUC of their combination was 0.902.Conclusion Portovenous phase enhanced CT texture analysis of HAE could be used to effectively predict extrahepatic metastasis.
