功能性超声波成像与机器学习相结合,用于对药物诱导的血液动力学变化进行全脑分析
Jared Deighton1, Shan Zhong2,3, Kofi Agyeman3,4,5
1Department of Mathematics, University of Tennessee, Knoxville, Knoxville, TN, United States.
Imaging neuroscience (Cambridge, Mass.)
|September 15, 2025
概括
功能性超声波成像 (fUSI) 结合机器学习,特别是卷积神经网络 (CNN),有效地绘制了大脑中的药物效应. 这种方法可以识别受迪佐西尔平 (MK-801) 影响的关键大脑区域,从而增强临床前药物开发.
科学领域:
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
- 医疗成像医学成像
背景情况:
- 功能性超声波成像 (fUSI) 可视化大脑血液体积的变化,具有高时空分辨率.
- 目前的fUSI研究经常使用固定感兴趣的区域,可能错过了关键的大脑活动.
- 迪佐西尔平 (MK-801) 是一种NMDA受体对抗剂,在临床前模型中用于记忆和学习研究.
研究的目的:
- 将机器学习方法 (CNN,SVM,ViT) 与fUSI进行比较,用于分析药物药理动力学.
- 用数据驱动,解剖学特定的方法识别受MK-801影响的大脑区域.
- 在药物机制研究中为fUSI建立一个新的分析框架.
主要方法:
- 功能性超声波成像 (fUSI) 用于监测大脑血液体积变化.
- 三种机器学习模型 (CNN,SVM,ViT) 应用于fUSI数据.
- 迪佐西尔平 (MK-801) 用于临床前模型,并分析了其影响.
主要成果:
- 所有测试的机器学习模型都区分了药物和控制条件.
- 卷积神经网络 (CNN) 在捕捉空间特征和解剖特异性方面表现出卓越的性能.
- 类激活映射在前额叶皮质和海马体中发现了显著的药物效应.
结论:
- fUSI和CNN的结合提供了一个强大的,数据驱动的框架来分析药物对大脑的影响.
- 这种方法可以识别和绘制药物诱导的变化,同时保持解剖学上下文.
- 这些发现与NMDA受体在关键大脑区域的已知分布一致.
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