用于高级别胶质瘤分级评估的磁共振成像放射组学驱动的人工神经网络模型

Magnetic Resonance Imaging Radiomics-Driven Artificial Neural Network Model for Advanced Glioma Grading Assessment.

作者信息

Qin Yan, You Wei, Wang Yulong, Zhang Yu, Xu Zhijie, Li Qingling, Zhao Yuelong, Mou Zhiwei, Mao Yitao

机构信息

Department of Radiology, Xiangya Hospital, Central South University, Changsha 410008, China.

National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China.

出版信息

Medicina (Kaunas). 2025 Jun 3;61(6):1034. doi: 10.3390/medicina61061034.

Abstract

: Gliomas are characterized by high disability rates, frequent recurrence, and low survival rates, posing a significant threat to human health. Accurate grading of gliomas is crucial for treatment plan selection and prognostic assessment. Previous studies have primarily focused on the binary classification (i.e., high grade vs. low grade) of gliomas. In order to perform the four-grade (grades I, II, III, and IV) glioma classification preoperatively, we constructed an artificial neural network (ANN) model using magnetic resonance imaging data. : We reviewed and included patients with gliomas who underwent preoperative MRI examinations. Radiomics features were derived from contrast-enhanced T1-weighted images (CE-TWI) using Pyradiomics and were selected based on their Spearman's rank correlation with glioma grades. We developed an ANN model to classify the four pathological grades of glioma, assigning training and validation sets at a 3:1 ratio. A diagnostic confusion matrix was employed to demonstrate the model's diagnostic performance intuitively. : Among the 362-patient cohort, the ANN model's diagnostic performance plateaued after incorporating the first 19 of the 530 extracted radiomic features. At this point, the average overall diagnostic accuracy ratings for the training and validation sets were 91.28% and 87.04%, respectively, with corresponding coefficients of variation (CVs) of 0.0190 and 0.0272. The diagnostic accuracies for grades I, II, III, and IV in the training set were 91.9%, 89.9%, 92.1%, and 90.7%, respectively. The diagnostic accuracies for grades I, II, III, and IV in the validation set were 88.7%, 87.1%, 86.5%, and 86.9%, respectively. : The MRI radiomics-based ANN model shows promising potential for the four-type classification of glioma grading, offering an objective and noninvasive method for more refined glioma grading. This model could aid in clinical decision making regarding the treatment of patients with various grades of gliomas.

摘要

胶质瘤具有高致残率、频繁复发和低生存率的特点,对人类健康构成重大威胁。准确的胶质瘤分级对于治疗方案的选择和预后评估至关重要。以往的研究主要集中在胶质瘤的二元分类(即高级别与低级别)上。为了在术前进行四级(I级、II级、III级和IV级)胶质瘤分类,我们使用磁共振成像数据构建了一个人工神经网络(ANN)模型。

我们回顾并纳入了接受术前MRI检查的胶质瘤患者。使用Pyradiomics从对比增强T1加权图像(CE-TWI)中提取影像组学特征,并根据它们与胶质瘤分级的Spearman等级相关性进行选择。我们开发了一个ANN模型来对胶质瘤的四个病理级别进行分类,以3:1的比例分配训练集和验证集。使用诊断混淆矩阵直观地展示模型的诊断性能。

在362例患者队列中,ANN模型在纳入530个提取的影像组学特征中的前19个后,其诊断性能趋于平稳。此时,训练集和验证集的平均总体诊断准确率分别为91.28%和87.04%,相应的变异系数(CV)分别为0.0190和0.0272。训练集中I级、II级、III级和IV级的诊断准确率分别为91.9%、89.9%、92.1%和90.7%。验证集中I级、II级、III级和IV级的诊断准确率分别为88.7%、87.1%、86.5%和86.9%。

基于MRI影像组学的ANN模型在胶质瘤分级的四分类中显示出有前景的潜力,为更精确的胶质瘤分级提供了一种客观且无创的方法。该模型有助于临床对不同级别胶质瘤患者的治疗决策。

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