通过使用可旋转的MRI系统,评估站立和仰卧姿势之间的胆脉的形态变化
Yulin Wang1, Shiying Ke1, Jiaxin Li2
1Department of Electrical and Electronic Engineering, Faculty of Science and Engineering, University of Nottingham Ningbo China, Ningbo, China.
Scientific reports
|July 2, 2025
概括
冠状动脉 (ChP) 在大脑中改变位置和大小,当从躺着移动到站立. 这些姿势变化会影响脑脊液 (CSF) 动态和内压力.
科学领域:
- 神经成像和解剖学研究
- 脑脊液动力学 脑脊液动力学
- 生物医学工程 生物医学工程
背景情况:
- 冠状动脉 (ChP) 对于脑脊液 (CSF) 的产生至关重要.
- 在直立姿势中理解CHP形态是有限的.
- 引力对ChP结构和功能的影响需要进一步研究.
研究的目的:
- 为了研究CHP在应对重力的位置,面积和体积变化.
- 为了比较ChP形态在卧底与直立姿势.
- 分析ChP对姿势变化的解剖适应.
主要方法:
- 使用可旋转的1.5TMRI扫描仪获取0和90度的3DMP-RAGE序列.
- 采用内部的CHP细分管道进行精确的测量.
- 在31名健康志愿者中分析了与侧腔室 (LVEN) 相对的间隙长度,表面积,体积和信号强度.
主要成果:
- 从仰卧到直立的姿势的过渡导致了显著的CHP位置变化,包括底部间隙减少和后部间隙增加.
- 在直立的位置上,ChP的表面积减少了5.30%,体积减少了7.53%.
- 信号强度的ChP增加了11.46%从躺到站,沿着重力方向的偏差.
结论:
- 姿势的变化导致侧腔室内状的显著位置和体积变化.
- 这项研究证明了自然站立状态下的ChP形态,揭示了依赖于重力的解剖变化.
- 观察到的解剖变化为不同姿势的脑脊液循环和内压力调节提供了洞察力.
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