在功能性超声波成像中对图像记录技术的比较评估
Shan Zhong1,2, Kofi Agyeman2,3,4, Shanze Syed3
1Alfred E. Mann Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, United States.
Imaging neuroscience (Cambridge, Mass.)
|August 13, 2025
概括
这项研究比较了八种图像记录技术,用于对准小鼠的功能超声波成像 (fUSI) 数据. 非刚性方法,特别是Elastix和Imregdeform,在加强临床前大脑研究方面表现出卓越的性能.
科学领域:
- 神经成像是一种神经成像.
- 生物医学工程 生物医学工程
- 计算神经科学是一种神经科学.
背景情况:
- 功能性超声波成像 (fUSI) 是一种高分辨率的血液动力学神经成像技术,用于临床前研究.
- 精确的联合注册fUSI血管图跨会议和动物对于先进的分析至关重要,但仍然具有挑战性.
研究的目的:
- 为了比较八种图像记录技术的有效性,对麻醉小鼠的2D全脑fUSI数据集进行对齐.
- 确定最佳的注册方法,以提高fUSI数据的一致性,并实现更广泛的研究应用.
主要方法:
- 在82只小鼠的2D斜全脑fUSI数据集上评估了8种图像注册技术.
- 使用相似度指标,雅可比式决定因素和折叠率来评估对齐精度和几何完整性来评估性能.
主要成果:
- 所有测试的注册技术都改善了fUSI图像对齐.
- 非刚性注册方法,特别是Elastix和Imregdeform,在相似度量方面表现优于刚性注册方法.
- 性能最好的非刚性方法保持了几何完整性,由接近1和低折叠率的雅可比式决定因素表明.
结论:
- 这项研究提供了对2D fUSI小鼠大脑数据的图像注册的第一个比较分析.
- 建议使用非刚性注册技术,特别是Elastix和Imregdeform,以准确调整fUSI数据.
- 改进注册将提高fUSI在神经科学研究中的实用性.
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