在直立的健康人群中,区域性肺功能的分布,通过电阻断层扫描在两个胸部检查平面中确定
I Frerichs1, B Vogt1, K Deuss1
1University Medical Centre Schleswig-Holstein, Campus Kiel, Department of Anaesthesiology and Intensive Care Medicine, Kiel, Germany.
Physiological measurement
|December 14, 2023
概括
电阻断层扫描 (EIT) 显示了在放松呼吸,但不是强迫机动期间,胸部平面之间的肺通风分布的差异. 这突出了影响区域通风的胸腔腹腔机制的变化.
科学领域:
- 肺部生理学 肺部生理学
- 医学成像医学成像
- 呼吸系统的机械学
背景情况:
- 肺气体含量的分布随着通风而变化.
- 了解区域肺透气对于诊断呼吸系统疾病至关重要.
研究的目的:
- 用EIT来描述两个胸部平面的空间通风分布差异.
- 为了研究呼吸机动如何影响通风分布.
主要方法:
- 电阻断层扫描 (EIT) 用于20名健康成年人.
- 在尾部和骨胸部位置放置了EIT电极.
- 在安静的呼吸和呼气动作时,分析了通风量 (CoVvd,背部部分).
主要成果:
- 在静静的呼吸和缓慢的呼气过程中,胸部平面之间的通风分布不同 (p<0.01).
- 在平面之间没有发现FEV1和FVC空间分布的显著差异.
- EIT的测量可靠地复制了通风中的体积差异.
结论:
- 空间通风分布在放松呼吸期间的胸部平面之间有所变化.
- 强制通风显示没有显著的平面依赖差异.
- 胸腔腹部力学差异解释了观察到的通风分布变化.
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