甲蒸汽固定使人类大小的肺部能够进行多级相对比成像和组织学验证
Christian Dullin1,2,3,4,5, Johanna Reiser6,7, Willi L Wagner6,7,8
1Department of Clinical and Interventional Radiology, University Medical Center Goettingen, Goettingen, Germany. christian.dullin@protonmail.com.
Scientific reports
|October 20, 2025
概括
我们开发了一种甲蒸汽固定方法,以保存肺部结构,用于先进的成像. 这种技术可以实现肺部的高分辨率,多尺度成像,改善疾病诊断和研究.
科学领域:
- 肺部医学 肺部医学
- 医疗成像医学成像
- 组织病理学 组织病理学
背景情况:
- 准确的肺病诊断需要先进的成像,具有高软组织对比度和最小的辐射.
- 阶段敏感计算机断层扫描 (CT),特别是基于传播的成像 (PBI),提供了优越的对比度,但需要保留肺架构.
- 现有的固定方法与高可靠性PBI和组织学相关性不兼容.
研究的目的:
- 提出一种适应的甲 (FA) 蒸汽固定协议,用于人体大小的肺部.
- 为了实现高分辨率,多尺度相对比成像,保持肺形态.
- 通过与组织学相关联,促进成像检测结果的准确验证.
主要方法:
- 适应的甲 (FA) 蒸汽固定协议用于生理上膨胀,稳定的人体大小的肺部.
- 在同一样本上从全器官PBI (67μm) 到亚细胞同步子PBI (650nm) 的多尺度成像.
- 在猪模型中进行验证,以评估膜完整性,放射学对比度和组织学细节.
主要成果:
- 该FA蒸汽固定协议成功地保持了肺膨胀和形态稳定性,防止了空气-组织接口崩.
- 在相同的标本上实现了高分辨率的多尺度PBI,保留了成像-组织学相关性的空间关系.
- 猪模型验证表明保持了膜完整性和放射性对比度,没有液体固定工件,同时保留了组织学细节.
结论:
- 开发的FA蒸汽固定协议解决了ex vivo肺成像中的关键挑战,使得样本准备一致.
- 这种技术支持生物安全稳定被挖掘的人类肺部,为翻译研究开辟了道路.
- 可扩展的固定协议为多式肺成像提供了标准化的基础,推进了肺研究和临床诊断.
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