相关实验视频

Updated: Aug 12, 2026

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

索马和神经元密度成像检测到肌缩侧硬化症中大脑微结构性损伤

Jing-Yi Zeng¹, Hui-Wei Huang¹, Shao-Peng Zhuang¹

¹Department of Radiology, Fujian Medical University Union Hospital, Fuzhou 350001 China.

European journal of radiology

|February 11, 2025

概括

索马和神经元密度成像 (SANDI) 揭示了在肌缩侧硬化症 (ALS) 中广泛的微观结构变化. 这种新的技术优于传统的DTI,显示神经元退化和 soma变化与疾病严重程度相关.

科学领域:

神经成像是一种神经成像.
神经科学是一个神经科学.
医疗成像医学成像

背景情况:

肌缩侧面硬化症 (ALS) 是一种进展性神经退行性疾病,影响运动神经元.
了解ALS中的微观结构变化对于诊断和监测至关重要.
传统的扩散张力成像 (DTI) 在表征复杂组织微观结构方面存在局限性.

研究的目的:

在ALS中使用 soma和神经元密度成像 (SANDI) 调查全脑微观结构变化.
为了比较SANDI与传统DTI在检测ALS相关变化的灵敏度.
为了将SANDI衍生的指标与疾病严重程度的临床参数相关联.

主要方法:

从43名ALS患者和41名健康对照中获得了扩散权重成像数据.
索马和神经元密度成像 (SANDI) 的指标 (f_soma,f_neurite,f_extra) 被计算出来.
基于Voxel的分析比较了跨组差异和与临床数据相关的指标.

主要成果:

患有ALS的患者在灰色和白质区域 (包括运动皮层和皮层脊髓管) 显示神经元密度降低 (f_神经元).
观察到细胞外空间增加 (f_extra) 和体密度改变 (f_soma),灰色/白色物质分布明显.
SANDI检测到比DTI更广泛的变化,这些指标与ALS疾病严重程度相关.

结论:

SANDI是一种新的,临床相关的成像模型,用于表征ALS.
SANDI在检测ALS中的微观结构损伤方面表现出对传统DTI的优越灵敏度.
源自SANDI的指标提供了对神经元退化和 soma变化的洞察,与疾病进展相关.

关键词:

肌缩性侧面硬化症 (AMLS) 是一种疾病.扩散张力成像的成像方法微观结构性损伤索马和神经细胞密度成像基于Voxel的分析

更多相关视频

Comprehensive Autopsy Program for Individuals with Multiple Sclerosis

Comprehensive Autopsy Program for Individuals with Multiple Sclerosis

Published on: July 19, 2019

Author Spotlight: Unveiling the Pathway Linking Obesity to Autoimmune Inflammation in Multiple Sclerosis

Author Spotlight: Unveiling the Pathway Linking Obesity to Autoimmune Inflammation in Multiple Sclerosis

Published on: February 23, 2024

相关概念视频

Neural Regulation

Neural Regulation

Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.

Neuron Structure

Neuron Structure

Neurons are the main type of cell in the nervous system that generate and transmit electrochemical signals. They primarily communicate with each other using neurotransmitters at specific junctions called synapses. Neurons come in many shapes that often relate to their function, but most share three main structures: an axon and dendrites that extend out from a cell body.
Structure and Function of Neurons
The neuronal cell body—the soma— houses the nucleus and organelles vital to cellular...

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 Stimulation (TMS).