Published in:
03-10-2023 | Gallbladder Cancer | Hepatobiliary
Radiomics-based machine learning and deep learning to predict serosal involvement in gallbladder cancer
Authors:
Shengnan Zhou, Shaoqi Han, Weijie Chen, Xuesong Bai, Weidong Pan, Xianlin Han, Xiaodong He
Published in:
Abdominal Radiology
|
Issue 1/2024
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Abstract
Objective
Our study aimed to determine whether radiomics models based on contrast-enhanced computed tomography (CECT) have considerable ability to predict serosal involvement in gallbladder cancer (GBC) patients.
Materials and methods
A total of 152 patients diagnosed with GBC were retrospectively enrolled and divided into the serosal involvement group and no serosal involvement group according to paraffin pathology results. The regions of interest (ROIs) in the lesion on all CT images were drawn by two radiologists using ITK-SNAP software (version 3.8.0). A total of 412 features were extracted from the CT images of each patient. The Mann‒Whitney U test was applied to identify features with significant differences between groups. Seven machine learning algorithms and a deep learning model based on fully connected neural networks (f-CNNs) were used for radiomics model construction. The prediction efficacy of the models was evaluated using receiver operating characteristic (ROC) curve analysis.
Results
Through the Mann‒Whitney U test, 75 of the 412 features extracted from the CT images of patients were significantly different between groups (P < 0.05). Among all the algorithms, logistic regression achieved the highest performance with an area under the curve (AUC) of 0.944 (sensitivity 0.889, specificity 0.8); the f-CNN deep learning model had an AUC of 0.916, and the model showed high predictive power for serosal involvement, with a sensitivity of 0.733 and a specificity of 0.801.
Conclusion
Radiomics models based on features derived from CECT showed convincing performances in predicting serosal involvement in GBC.