相关实验视频

Updated: May 11, 2026

Probing the Brain in Autism Using fMRI and Diffusion Tensor Imaging

Probing the Brain in Autism Using fMRI and Diffusion Tensor Imaging

Published on: September 12, 2011

在初级阿尔多斯特罗尼斯症患者中白质微观结构的变化具有正常认知功能的患者使用扩散张力成像

Weijie Chen^1,2, Simin Deng³, Heng Li²

¹The Second School of Clinical Medicine, Southern Medical University, Guangzhou, People's Republic of China.

International journal of general medicine

|March 3, 2025

概括

主要阿尔多斯特症 (PA) 患者显示早期白质微结构变化,通过扩散张力成像 (DTI) 检测到,甚至在认知障碍之前. 这些发现表明,DTI可以识别PA相关的大脑变化的早期生物标志物.

科学领域:

神经成像是一种神经成像.
内分泌学在内分泌学.
神经学神经学

背景情况:

原发性阿尔多斯特隆症 (PA) 是一种与心血管和脏问题相关的疾病.
经常研究PA患者的认知功能,但基本的白质变化不太了解.
在PA中早期发现大脑变化对于及时干预至关重要.

研究的目的:

研究具有正常认知功能的原发性阿尔多斯特症 (PA) 患者的白质微观结构变化.
利用扩散张力成像 (DTI) 来识别大脑白质中的微妙变化.
探索潜在的早期成像生物标志物用于PA相关的神经并发症.

主要方法:

招募的PA患者和健康对照 (HCs).
从所有参与者获得T1加权的MRI和DTI数据.
使用约翰霍普金斯大学白物质地图,计算了分数异构性 (FA),轴向扩散性 (AD),辐射扩散性 (RD) 和平均扩散性 (MD).

主要成果:

在PA患者中,带皮带束,小子,下面的额头头带带和上端纵向带带的AD增加.
在左下面的额头尾带和右上纵向带中观察到升高的RD.
增加的MD被发现在小子,双边下面的额头头带和右上纵向带.

结论:

在认知障碍发作之前,在PA患者中存在补偿性白质变化.
这些DTI衍生变化可能作为PA相关大脑功能障碍的早期成像生物标志物.
像DTI这样的先进的神经成像技术对于早期诊断和治疗PA至关重要.

关键词:

有关认知性的认知.扩散张力成像扩散张力成像主要的阿尔多斯顿主义.白质微观结构的变化

更多相关视频

Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases

Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases

Published on: July 28, 2013

Measuring Connectivity in the Primary Visual Pathway in Human Albinism Using Diffusion Tensor Imaging and Tractography

Measuring Connectivity in the Primary Visual Pathway in Human Albinism Using Diffusion Tensor Imaging and Tractography

Published on: August 11, 2016

相关概念视频

Alzheimer's Disease: Overview

Alzheimer's Disease: Overview

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 and tau...

Alzheimer Disease l: Introduction

Alzheimer Disease l: Introduction

Alzheimer disease is a chronic, progressive, and irreversible neurodegenerative disorder and the most common cause of dementia in older adults. It leads to gradual neuronal loss, causing cognitive decline, behavioral changes, and loss of functional independence.Risk Factors and EtiologyThe disease is multifactorial. Age is the strongest risk factor, with prevalence doubling every 5 years after age 65. Genetic factors include mutations in genes such as APP, PSEN1, and PSEN2, which are associated...

Alzheimer Disease ll: Pathophysiology

Alzheimer Disease ll: Pathophysiology

Alzheimer disease involves structural changes in the brain that begin long before symptoms appear. The most distinctive features are extracellular neuritic plaques and intracellular neurofibrillary tangles.Neuritic plaques form in the cerebral cortex and around blood vessels. These plaques contain a dense core of beta-amyloid (Aβ)—a toxic protein fragment that clumps outside neurons. The core is surrounded by damaged neuronal extensions, as well as reactive astrocytes and microglia. Abnormal...