相关实验视频

Updated: May 29, 2025

Lesion Explorer: A Video-guided, Standardized Protocol for Accurate and Reliable MRI-derived Volumetrics in Alzheimer's Disease and Normal Elderly

Lesion Explorer: A Video-guided, Standardized Protocol for Accurate and Reliable MRI-derived Volumetrics in Alzheimer's Disease and Normal Elderly

Published on: April 14, 2014

基于MRI的全脑弹性图和体积测量以预测大脑年龄

Claudio Cesar Claros-Olivares¹, Rebecca G Clements^2,3,4, Grace McIlvain^2,5

¹Department of Electrical & Computer Engineering, University of Delaware, Newark, DE 19716, United States.

Biology methods & protocols

|February 4, 2025

概括

使用磁共振弹性学 (MRE) 预测大脑年龄,显示机械性质,如刚性和阻尼,可以估计时间年龄. 结合硬度和体积数据,产生了最准确的脑年龄估计.

科学领域:

神经成像是一种神经成像.
生物物理学的生物物理.
机器学习机器学习

背景情况:

通过神经成像对大脑年龄的估计有助于评估神经发育和神经退行性疾病.
磁共振弹性成像 (MRE) 测量大脑的机械性质 (刚性,阻尼率),这些特性随着年龄和疾病而变化.
这些特性与认知功能和神经退行相关.

研究的目的:

开发一种机器学习框架,从大脑机械性质图中预测时间表年龄.
评估MRE衍生指标在脑年龄建模中的实用性.
调查结合机械性能和体积数据的多式联接方法.

主要方法:

利用3D卷积神经网络和传统的统计模型.
整合整个大脑的硬度测量,缓冲比率和体积.
评估了对被保留的受试者数据的模型性能.

主要成果:

结合度和体积的多式方法提供了最准确的年龄预测.
模型解释确定了关键的大脑区域,这些区域有助于跨模式的年龄估计.
MRE测量为传统的大脑年龄模型提供了补充信息.

结论:

由MRE衍生的大脑机械特性是对大脑年龄预测框架的有价值的补充.
多模式整合MRE数据与体积信息提高了预测准确度.
这种方法有可能改善与神经病理学相关的大脑完整性变化的检测.

关键词:

卷积神经网络是一种卷积神经网络.深度学习是一种深度学习.弹性学弹性学弹性学磁共振成像技术的使用神经成像是一种神经成像.神经科学神经科学

更多相关视频

Whole-brain Segmentation and Change-point Analysis of Anatomical Brain MRI—Application in Premanifest Huntington's Disease

Whole-brain Segmentation and Change-point Analysis of Anatomical Brain MRI—Application in Premanifest Huntington's Disease

Published on: June 9, 2018

Automated Segmentation of Cortical Grey Matter from T1-Weighted MRI Images

Automated Segmentation of Cortical Grey Matter from T1-Weighted MRI Images

Published on: January 7, 2019

相关概念视频

Magnetic Resonance Imaging

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...

Brain Imaging

Brain Imaging

Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...