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Three-photon imaging of mouse brain structure and function through the intact skull.

ABSTRACT: Optical imaging through the intact mouse skull is challenging because of skull-induced aberrations and scattering. We found that three-photon excitation provided improved optical sectioning compared with that obtained with two-photon excitation, even when we used the same excitation wavelength and imaging system. Here we demonstrate three-photon imaging of vasculature through the adult mouse skull at >500-?m depth, as well as GCaMP6s calcium imaging over weeks in cortical layers 2/3 and 4 in awake mice, with 8.5 frames per second and a field of view spanning hundreds of micrometers.

SUBMITTER: Wang T

PROVIDER: S-EPMC6188644 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature

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Three-photon imaging of mouse brain structure and function through the intact skull.

Wang Tianyu T Ouzounov Dimitre G DG Wu Chunyan C Horton Nicholas G NG Zhang Bin B Wu Cheng-Hsun CH Zhang Yanping Y Schnitzer Mark J MJ Xu Chris C

Nature methods 20180910 10

Optical imaging through the intact mouse skull is challenging because of skull-induced aberrations and scattering. We found that three-photon excitation provided improved optical sectioning compared with that obtained with two-photon excitation, even when we used the same excitation wavelength and imaging system. Here we demonstrate three-photon imaging of vasculature through the adult mouse skull at >500-μm depth, as well as GCaMP6s calcium imaging over weeks in cortical layers 2/3 and 4 in awa ...[more]

PMID: 30202059

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