气溶沉积的磁共振成像
Richard B Thompson1, Chantal Darquenne2
1Department of Biomedical Engineering, University of Alberta, Edmonton, Alberta, Canada.
Journal of aerosol medicine and pulmonary drug delivery
|July 31, 2023
概括
核磁共振成像 (MRI) 量化了在肺部吸入的粒子沉积. 这种非电离辐射技术使用标记的气溶来检测区域分布,显示MRI.
科学领域:
- 医疗成像医学成像
- 肺部医学 肺部医学
- 生物物理学的生物物理.
背景情况:
- 核磁共振成像 (MRI) 是一种非电离辐射成像方式.
- 核磁共振 (MRI) 提供了各种不同的对比机制,适用于量化气溶沉积.
- 了解区域气溶沉积对于呼吸系统医学至关重要.
研究的目的:
- 介绍MRI用于肺部成像的物理.
- 详细说明检测吸入颗粒的区域分布的方法.
- 为了证明MRI在评估肺部气溶沉积中的能力.
主要方法:
- 使用基于水中的 (1H) 原子成像的常见MRI实现.
- 用对比剂标记吸入的气溶以扰乱1H信号.
- 通过信号干扰测量区域气溶沉积 in vitro 和 in vivo.
主要成果:
- 证明了MRI测量呼吸道区域气溶沉积的能力.
- 展示了体外人类和体外动物模型的测量结果.
- 展示了用于气溶检测的1H信号的扰动.
结论:
- 磁力共振成像是量化肺部区域气溶沉积的一个可行的工具.
- 标记的气溶可以有效地使用MRI检测.
- 该技术有可能用于评估吸入颗粒的分布.
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