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在人类左心室自由壁样本中,用X射线相位对比显微断层扫描来评估薄纸厚度

Zhaorui Li¹, Shunli Wang², Kai Li³

¹School of Instrumentation Science and Engineering, Harbin Institute of Technology (HIT), Harbin 150001, China; Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150081, China.

Computer methods and programs in biomedicine

|September 18, 2025

概括

心肌细胞片和裂隙平面 (CP) 厚度在左心室 (LV) 壁的区域不同. 这种对心肌结构的理解支持了对心脏功能和疾病的研究.

科学领域:

心血管生物学心血管生物学
生物医学成像技术生物医学成像技术
生物物理学的生物物理.

背景情况:

左心室 (LV) 壁中的心肌细胞被组织成片状,对于理解心室功能至关重要.
了解表格布局对于理解心脏力学和疾病病理学至关重要.

研究的目的:

引入和验证一种新的距离场方法,用于量化局部表格和切割平面 (CP) 厚度.
为了研究在人类LV无壁样本中纸板和CP厚度的区域差异.

主要方法:

使用高分辨率同步射相对比微断层扫描 (SR-PCT) 绘制人体 LV 透视样本的图像.
应用的高斯差异 (DoG) 用于样品平面化和用于表格/CP提取的连接过器.
开发了层状结构模拟模型,以验证厚度测量的距离场方法.

主要成果:

证明了纸张和CP厚度的区域差异.
在平板板区域观察到更薄的板块和更厚的CP.
在血管周围发现更厚的CP,在叶片种群的交叉点发现更薄的叶片.

结论:

叶片和CP厚度的区域分布提供了对心肌结构的形态洞察.
这些发现为未来关于心肌机械功能和心脏病机制的研究提供了基础.

关键词:

分裂飞机的飞机是分裂飞机.人的左心室自由壁的左心室.心肌结构的架构.叶片叶片叶片叶片叶片同步射辐射相对比微观图解学.

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