基于拉伸指数扩散权重成像的机器学习模型,预测裸体小鼠乳腺癌模型中的TROP2表达
Yi Deng1, Chao-Gang Han1, Zi-Qin Deng1
1Department of Radiology, Shaoguan Maternal and Child Health Hospital, 512000 Shaoguan, Guangdong, China.
Discovery medicine
|March 21, 2025
概括
使用多b值扩散加权成像 (DWI) 的机器学习模型可以预测巨细胞表面抗原2 (TROP2) 在乳腺癌中的表达. 极端梯度增强 (XGBoost) 模型在裸体小鼠模型中表现出卓越的性能.
科学领域:
- 在瘤学瘤学.
- 放射学 放射学是一门学科.
- 机器学习 机器学习
背景情况:
- 热囊细胞表面抗原2 (TROP2) 是乳腺癌治疗的关键标.
- 评估TROP2表达的非侵入性方法对于治疗规划至关重要.
- 这项研究研究使用先进的成像技术预测TROP2表达.
研究的目的:
- 评估基于多b值扩散权重成像 (DWI) 的机器学习模型与伸展指数模型 (SEM) 的有效性,用于预测乳腺癌中TROP2表达.
- 为了比较极端梯度提升 (XGBoost),后勤回归和自适应提升 (AdaBoost) 分类器的性能.
- 识别关键的成像参数,以准确地预测TROP2表达.
主要方法:
- 32个裸体小鼠乳腺癌模型接受了1.5TMRI,使用多b值DWI.
- 使用FireVoxe软件提取了拉伸指数模型 (SEM) 参数 (DDC,α) 和直方图特征.
- 通过免疫组织化学染色 (IOD) 来量化TROP2表达;机器学习模型被训练和验证.
主要成果:
- 从38个提取的特征中选择了8个关键的成像参数.
- 在验证组中,XGBoost模型在0.828的曲线下面积 (AUC) 中获得了最高的值.
- 在训练 (AUC=1) 和测试集 (AUC=1) 中,XGBoost表现出色,校准良好,在决策曲线分析上具有有利的净效益.
结论:
- 使用基于SEM的DWI的机器学习模型显示了在乳腺癌中预测TROP2表达的巨大潜力.
- XGBoost分类器表现出卓越的预测准确性,突出显示了其对临床应用的承诺.
- 这种非侵入性方法可以帮助个性化乳腺癌治疗策略.
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Mice have long served as models for studying human biology and pathology because of their phylogenetic and physiological similarity with humans. They are also easy to maintain and breed in the laboratory, and hence, many inbred strains are now available for research. Studies on mice have contributed immeasurably to our understanding of cancer biology.
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