解读嗅觉功能障碍的神经基础:在CRS-OD中进行多模式MRI研究
1Department of Radiology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, P.R. China.
Rhinology
|January 23, 2026
概括
带有嗅觉功能障碍的慢性鼻炎 (CRS-OD) 会导致嗅觉球缩和脑中嗅觉区域的灰质损失. 这项神经成像研究显示,大脑连接受损,这表明CRS-OD患者中枢神经系统发生了变化.
科学领域:
- 神经科学是一个神经科学.
- 放射学 放射学是一门学科.
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
背景情况:
- 带有嗅觉功能障碍的慢性鼻炎 (CRS-OD) 影响外周和中央嗅觉通路.
- 在CRS-OD中持续的嗅觉损失可能会引发神经可塑性大脑变化.
- 假设:CRS-OD与灰质缩和嗅觉区域功能连接的改变有关.
研究的目的:
- 调查CRS-OD患者的灰质体积和功能连接性改变.
- 为了将神经成像发现与嗅觉功能障碍严重程度相关联.
主要方法:
- 对23名CRS-OD患者和23名健康对照 (HC) 的前性研究.
- 包括Voxel-Based Morphometry (VBM) 在内的MRI分析用于灰质差异和基于种子的功能连接 (FC).
- 使用TDI,QOD和OECS测试对嗅觉功能的评估.
主要成果:
- 与HC相比,CRS-OD患者的嗅球 (OB) 体积显著减少.
- 灰色物质缩在下额外轨道环,副海马环,海马,丘脑和门中被观察到.
- 感官整合网络的FC降低和上回形的FC增加,这表明补偿性重组.
结论:
- CRS-OD与OB缩,灰质损失和中断的FC有关,表明了外围和中央神经的改变.
- 多模式MRI提供了对CRS-OD病理生理学的见解.
- 需要进一步的纵向研究来了解这些神经变化的进展.
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