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関連する概念動画

The Spinal Cord01:54

The Spinal Cord

29.7K
The spinal cord is the body’s major nerve tract of the central nervous system, communicating afferent sensory information from the periphery to the brain and efferent motor information from the brain to the body. The human spinal cord extends from the hole at the base of the skull, or foramen magnum, to the level of the first or second lumbar vertebra.
29.7K
Spinal Cord01:26

Spinal Cord

589
The spinal cord, a critical component of the central nervous system, extends from the base of the brainstem to the lumbar region of the vertebral column. It is essential for maintaining physical stability and facilitating communication between the brain and peripheral parts of the body.
589
Spinal Nerves: Plexus I01:22

Spinal Nerves: Plexus I

1.3K
Nerve plexuses are networks of interlacing nerves that serve as communication hubs to distribute and organize nerve action across various body regions. The nerve plexuses are organized into the cervical plexus located in the neck region, brachial plexus in the shoulder area, lumbar plexus found in the lower back, sacral plexus situated in the pelvis, and coccygeal plexus located in the coccygeal region.
The Cervical Plexus
The cervical plexus, formed by the anterior rami of the first four...
1.3K
Spinal Nerves: Plexus II01:21

Spinal Nerves: Plexus II

841
The plexuses of the lower body include the lumbar, sacral, and coccygeal plexuses, which innervate the abdomen, pelvis, legs, and coccygeal region. These plexuses control the transmission of sensory information and coordinate motor functions of the lower body.
The Lumbar Plexus
The lumbar plexus is situated within the lumbar region of the back and is primarily formed by the first four lumbar spinal nerves (L1 to L4). This plexus extends its branches into several nerves, including the...
841
Spinal Cord: Cross-sectional Anatomy01:16

Spinal Cord: Cross-sectional Anatomy

2.4K
The cross-sectional anatomy of the spinal cord offers a detailed view of its complex structure and function within the central nervous system. At the core of the spinal cord lies the gray matter, characterized by its butterfly or "H"-shaped appearance in cross-section. This central region is enveloped by white matter, with the overall structure divided into symmetrical halves by the dorsal median sulcus and the ventral median fissure.
Gray Matter and its Components
Central to the gray matter is...
2.4K
Spinal Cord: Information Processing01:10

Spinal Cord: Information Processing

1.7K
The spinal cord is an integral hub for motor and sensory information that enables the brain to communicate with the peripheral nervous system (PNS). This communication consists of relaying sensory data and transmission of motor commands.
Sensory Information Processing
Sensory information processing begins at the sensory receptors located in the skin and other tissues, which detect somatic sensory stimuli such as touch, temperature, or pain. These receptors function as catalysts, initiating...
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関連する実験動画

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Combining Peripheral Nerve Grafting and Matrix Modulation to Repair the Injured Rat Spinal Cord
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PAM50脊髄テンプレートへのルートレットベースの登録

Sandrine Bédard1, Jan Valošek1,2,3,4, Valeria Oliva5,6

  • 1NeuroPoly Lab, Institute of Biomedical Engineering, Polytechnique Montreal, Montreal, QC, Canada.

Imaging neuroscience (Cambridge, Mass.)
|August 29, 2025
PubMed
まとめ

神経根を用いた新しい脊髄画像法により,機能MRI (fMRI) グループ分析の解剖学的な整合が改善されています. このルートレットベースの登録は精度と再現性を高め,より信頼性の高い神経イメージング結果につながります.

キーワード:
神経根子登録する空間的標準化脊髄模様

さらに関連する動画

Studying the Coding Profiles of Somatic Stimulation on Cardiac-locked Neuronal Responses in the Rat Spinal Dorsal Horn
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Studying the Coding Profiles of Somatic Stimulation on Cardiac-locked Neuronal Responses in the Rat Spinal Dorsal Horn

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Author Spotlight: Innovative Methodology for Implanting and Securing Neural Probes in the Rodent Spinal Cord
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20:14

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Studying the Coding Profiles of Somatic Stimulation on Cardiac-locked Neuronal Responses in the Rat Spinal Dorsal Horn
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Author Spotlight: Innovative Methodology for Implanting and Securing Neural Probes in the Rodent Spinal Cord
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科学分野:

  • 神経イメージング
  • 脊髄 の 解剖
  • 医学画像分析

背景:

  • 脊髄機能MRI (fMRI) は,グループ分析のために正確な解剖学的な局所化を要求する.
  • 記録のために椎間板を使用する伝統的な方法は,解剖学的変化に苦しんでいます.
  • 脊髄研究における信頼性の高いヴォクセルによるグループ分析には,調整の改善が不可欠である.

研究 の 目的:

  • 脊髄のfMRIの新規登録方法を開発し,検証する.
  • 調整の精度と重複性を向上させるため,個体と首の位置が異なります.
  • グループレベルのfMRI分析において,ルーレットベースの登録の性能を,従来のディスクベースの方法と比較する.

主な方法:

  • PAM50脊髄テンプレートとセグメンテッドの頸椎根を並べた非線形登録方法を開発した.
  • 大規模な複数の被験者,複数の場所のデータセット (n=267) と様々な首の位置を持つデータセット (n=10) でこの方法を検証した.
  • タスクベースのfMRI (n=23) からグループレベルのアクティベーションマップを比較し,ルーレットベースの対ディスクベースの登録を使用した.

主要な成果:

  • ルーレットベースの登録は,ディスクベースの方法と比較して,226人の全般的な分析と176人の形態学的分析で優れた調整を示しました.
  • 異なる首の位置でより高い安定性を示した.
  • タスクベースのfMRI分析では,Zスコアが増加し,ルートレットベースの登録では,著しく大きなアクティベーションクラスタサイズ (3292〜7978ボクセル) が示されました.

結論:

  • ルーレットベースの登録は,脊髄イメージングにおいて,被験者間のおよび内部の解剖学的アライメントを著しく改善します.
  • この方法は,グループレベルのfMRI分析の空間的正常化を高め,精度と信頼性を高めます.
  • この発見は,脊髄神経イメージングを進めるためのルートレットベースの登録の可能性を裏付けています.