在外中叶外伤性中明显的中间时体积特征
Yonatan Serlin1, Bijal Patel2, Elena Hayday1
1Neurophysiology of Epilepsy Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA.
Epilepsia open
|December 19, 2025
概括
药物耐药性 (DRE) 与外介质时性病变 (EMTLs) 显示出明显的杏仁体和海马体积变化. 左侧EMTL与海马缩相相关,而右侧EMTL显示复杂的缩和缩模式.
科学领域:
- 神经成像是一种神经成像.
- 的研究研究.
- 结构大脑分析 结构大脑分析
背景情况:
- 耐药性 (DRE) 带来了诊断挑战,特别是在外介质时间性病变 (EMTLs) 时.
- 了解DRE中的结构性大脑变化对于定位发作焦点和开发向疗法至关重要.
- 杏仁体和海马体体积不对称是神经功能障碍的关键指标.
研究的目的:
- 量化DRE和EMTL患者的杏仁体和海马体体积不对称.
- 将这些结构变化与耐药叶 (TLE),外叶 (ETLE) 和健康个体的结构变化进行比较.
- 调查这些大脑结构中的缩和缩的患病率和模式,与损伤横向性相比.
主要方法:
- 使用高分辨率脑MRI对298名参与者 (252名DRE患者,46名对照人) 的回顾性分析.
- 用一个不对称指数 (AI) 对方向性和大小进行杏仁体和海马体积的细分和分析.
- 通过对DRE子组 (EMTL,TLE,ETLE) 和健康志愿者的体积数据进行比较,并对多次测试进行校正.
主要成果:
- 左侧EMTL显示海马体不对称度增加和高患病率的ipsilateral海马体缩 (39.6%),类似于左侧TLE.
- 右EMTLs表现出典型的海马体不对称性丧失,具有显著的杏仁体缩 (40-46.7%) 和逆侧海马体缩 (40%).
- 在20.6%的EMTL病例中,发现了带有 mesial temporal sclerosis的双重病理,主要是 ipsilateral.
结论:
- 在很大比例的EMTL患者中存在月经时间体积变化.
- 详细的不对称性分析揭示了与EMTL相关的DRE.在网络层面的潜在补偿性变化.
- 研究结果表明,体积不对称性测量可以识别标准评估中遗漏的微妙结构变化,有助于局部化和治疗规划.
相关概念视频
01:24Epilepsy and Seizures: Overview
Epilepsy is a chronic neurological disease marked by recurrent, unpredictable seizures. These seizures are caused by abnormal electrical discharges in the brain, leading to behavior, sensation, or consciousness alterations. They can also cause transient impairment of awareness, interfering with daily activities.
Various factors can trigger epilepsy, including genetic factors, brain damage, metabolic causes, and unknown etiology. Diagnosis of epilepsy involves electroencephalography (EEG), which...
Various factors can trigger epilepsy, including genetic factors, brain damage, metabolic causes, and unknown etiology. Diagnosis of epilepsy involves electroencephalography (EEG), which...
01:13Seizures: Classification
Epilepsy is primarily characterized by unpredictable seizures, either provoked by an identifiable factor, such as injury or illness, or unprovoked, occurring spontaneously without apparent cause.
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
01:19Seizures ll: Types
Seizures are sudden bursts of abnormal electrical discharge in the brain that interfere with normal function. They are commonly divided into three groups: focal seizures, generalized seizures, and other types that do not fit neatly into either category.Focal SeizuresFocal seizures begin in a single brain region. When awareness is preserved, they are called focal aware seizures and may cause sensations such as tingling, unusual smells, or flashing lights. When awareness is impaired, they are...
01:22Epilepsy ll: Types
Recurrent seizures, stemming from abnormal electrical activity in the brain, are the defining characteristic of epilepsy, a chronic neurological condition. Because seizure features vary greatly, epilepsy is classified using two systems: by seizure type and by epilepsy syndromes. These classifications enable clinicians to describe seizure patterns and select suitable treatment strategies.I. Classification by Seizure Type1. Focal EpilepsyFocal epilepsy begins in one hemisphere of the brain.