Value of conventional radiological features and ct radiomics features in differentiating parotid adenolym-phoma from malignant tumors
10.3969/j.issn.1006-5725.2025.21.021
- VernacularTitle:常规影像和CT影像组学特征鉴别腮腺腺淋巴瘤与恶性肿瘤的价值
- Author:
Guoliang WEN
1
;
Hang FANG
;
Wei ZHANG
Author Information
1. 桂林医学院附属医院放射科(广西 桂林 541001)
- Publication Type:Journal Article
- Keywords:
parotid gland;
adenolymphoma;
malignant tumor;
radiomics
- From:
The Journal of Practical Medicine
2025;41(21):3442-3448
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the value of conventional radiological features and CT radiomics fea-tures to differentiate parotid adenolymphoma from malignant tumor.Methods Radiological data from 128 patients with adenolymphoma and 39 patients with parotid malignancy were collected between December 2018 and October 2023.Radiomics features were extracted to obtain Rad-score and construct a radiomics model.Conventional radiologi-cal features were analyzed to obtain independent predictors,and a conventional radiological model was constructed.Model performance was compared by the DeLong test,and the Rad-score was combined with radiological features to establish a comprehensive model and plot a nomogram.Results Based on CT venous phase images,9 optimal radiomic features were selected.Conventional radiological features were analyzed by univariate and multivariate logistic regression analysis and found that shape and degree of enhancement were independent predictors of adenolymphoma and malignant parotid tumors.The CT radiomics model is superior to the conventional radiological model(P<0.05).The area under the curve(AUC)of the radiomics model was 0.938(95%CI:0.887～0.988),and the specificity and sensitivity were 0.856 and 0.923,respectively.Conventional radiological features and Rad-score were analyzed by univariate and multivariate logistic regression analysis and found that Rad-score and degree of enhancement were independent predictors of adenolymphoma and malignant parotid tumors.The difference between the diagnostic efficacy of the comprehensive model created by the Rad-score combined with the degree of enhancement and the diagnostic efficacy of the radiomics model was not statistically significant(P>0.05).Conclusion The CT radiomics model per-formed better than the conventional radiological model in discriminating parotid gland adenolymphoma from malignant tumors.The diagnostic performance of the comprehensive model has improved,aiding in clinical decision-making.
