多発性硬化症における脳年齢推定に対する病変補充の効果
Salem Hannoun1, Grace Fayad2, Nabil K El Ayoubi3
1Medical Imaging Sciences Program, Division of Health Professions, Faculty of Health Sciences, American University of Beirut, Beirut, Lebanon. sh156@aub.edu.lb.
BMC medical imaging
|August 27, 2025
まとめ
多発性硬化症 (MS) の脳年齢の推定は堅実で,病変の埋着は控えめな構造的改善をもたらす. 脳年齢ギャップ (BAG) は臨床およびイメージングマーカーと相関しており,MSの神経変性評価におけるその使用を支持しています.
科学分野:
- 神経イメージング
- バイオマーカー
- 神経変性
背景:
- 脳年齢の推定は多発性硬化症 (MS) の神経変性に対する有望なバイオマーカーです
- 多発性硬化症の病変は 脳の年齢を予測するモデルに 不正確さをもたらします
- 脳年齢の推定と臨床的関連に対する病変補充の影響は十分に理解されていません.
研究 の 目的:
- 多発性硬化症患者の脳年齢の推定に対する病変補充の影響を評価する.
- 脳年齢ギャップ (BAG) と臨床/構造マーカーの関連性を評価する.
- 病変補充が脳の年齢推定の構造的解釈性と臨床的関連性を改善するかどうかを判断する.
主な方法:
- BrainAgeRパイプラインを用いて 571人の再発性- 寛解性MS患者を分析した.
- 損傷のない画像と損傷のある画像の両方から推定された脳年齢.
- 計算されたBAGと臨床結果との関連性 (EDSS, 9HPT, SDMT, 25FWT) と多変数線形回帰を用いた体積測定.
主要な成果:
- 病変で満たされた脳年齢の推定値は高い一致を示した (r=0. 97).
- 年齢予測の平均絶対誤差がわずかに減少した.
- 両方のBAG測定は臨床スコアと相関しており,病変で満たされたBAGは灰色質,タラミック,そして海馬の体積とより強い関連を示しています.
結論:
- 損傷補充は多発性硬化症の脳年齢の推定における 構造的解釈の改善を 提供します
- 脳年齢の推定はMSの強力なバイオマーカーであり 方法の高度な一致によって確認されています
- 脳の年齢の正確な構造的な解釈が不可欠である場合,損傷矯正が推奨されます.
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