Optical coherence tractography using intrinsic contrast.

Optical coherence tractography using intrinsic contrast.
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DOI:
10.1364/ol.37.003882
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发表时间:
2012-09-15
期刊:
影响因子:
3.6
通讯作者:
Srinivasan VJ
Srinivasan VJ
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Goergen CJ;Radhakrishnan H;Sakadžić S;Mandeville ET;Lo EH;Sosnovik DE;Srinivasan VJ

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心脏和大脑等器官拥有复杂的纤维结构,通过三维成像可以最好地表征这些结构。例如,基于扩散的磁共振纤维束成像 (MRT) 能够在毫米尺度上宏观研究发育和疾病过程中的连接和重塑。在这里,我们提出了互补的高分辨率显微光学相干成像和分析方法,当与透明技术结合使用时,可以表征组织深度超过 1 毫米的完整器官中的纤维结构。我们预计这些技术可用于在目前扩散磁共振(MR)无法实现的微观尺度上原位研究纤维结构,从而验证和补充宏观结构成像技术。此外,由于这些技术使用内在信号并且不需要组织切片和染色,因此它们可用于对大组织体积的纤维结构进行高通量、无损评估。
Organs such as the heart and brain possess intricate fiber structures that are best characterized with threedimensional imaging. For instance, diffusion-based, magnetic resonance tractography (MRT) enables studies of connectivity and remodeling during development and disease macroscopically on the millimeter scale. Here we present complementary, high-resolution microscopic optical coherence imaging and analysis methods that, when used in conjunction with clearing techniques, can characterize fiber architecture in intact organs at tissue depths exceeding 1 mm. We anticipate that these techniques can be used to study fiber architecture in situ at microscopic scales not currently accessible to diffusion magentic resonance (MR), and thus, to validate and complement macroscopic structural imaging techniques. Moreover, as these techniques use intrinsic signals and do not require tissue slicing and staining, they can be used for high-throughput, nondestructive evaluation of fiber architecture across large tissue volumes.
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