早期发现阿尔茨海默氏症进展:对深度学习模型的比较评估
Jayashree Shetty1, Manjula K Shenoy1, Sucheta V Kolekar2
1Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, India.
Scientific reports
|December 5, 2025
概括
深度学习模型对阿尔茨海默病 (AD) 诊断有希望. 两种3D CNN模型在使用MRI扫描预测AD进展时取得了高准确性 (94-95%),有助于早期检测和监测.
科学领域:
- 神经成像是一种神经成像.
- 人工智能的人工智能
- 神经学 神经学
背景情况:
- 由于全球病例的增加,对阿尔茨海默病 (AD) 的准确诊断和监测至关重要.
- 神经成像生物标志物和深度学习为改善AD进展预测提供了潜力.
研究的目的:
- 通过使用脑MRI扫描来评估两个不同的3D卷积神经网络 (CNN) 模型,用于二进制AD进展分类.
- 为了比较全卷CNN与区域导向CNN的性能和计算效率.
主要方法:
- 开发了两个3D CNN模型:一个处理整个MRI卷,另一个专注于预定义的大脑区域与显著的灰质变化.
- 标准的MRI预处理步骤包括偏差场校正,组织细分,MNI空间对齐和高斯光滑.
- 该区域导向模型包含基于AD相关收缩影响的神经解剖区域的特征提取.
主要成果:
- 全卷CNN实现了94%的验证准确性,展示了高计算效率.
- 区域指导的CNN获得了95%的准确性,通过使用特定域结构生物标志物来证明增强的性能.
- 以区域为导向的方法以增加模型复杂性的代价实现了更高的准确性.
结论:
- 将深度学习与神经成像生物标志物的结合具有显著的潜力,可以提高早期AD检测和监测.
- 引导特征选择和体积数据分析可以提高阿尔茨海默病的诊断精度.
- 需要对不同临床群体进行进一步的验证,以确认ADNI数据集中的这些发现.
相关概念视频
Alzheimer's Disease: Overview
1.6K
Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
1.6K
Alzheimer's Disease: Treatment
764
Alzheimer's Disease (AD), a neurodegenerative disorder, is pathologically identified by amyloid plaques and neurofibrillary tangles composed of tau protein. AD pharmacotherapy aims to manage cognitive symptoms, delay disease progression, and treat behavioral symptoms. The treatment is primarily symptomatic and palliative, with no definitive disease-modifying therapy available. Cholinesterase inhibitors, including donepezil (Aricept), rivastigmine (Exelon), and galantamine (Razadyne), are...
764


