Molecules (Jun 2023)

Dynamic Volumetric Imaging of Mouse Cerebral Blood Vessels In Vivo with an Ultralong Anti-Diffracting Beam

  • Yong Guo,
  • Luwei Wang,
  • Ziyi Luo,
  • Yinru Zhu,
  • Xinwei Gao,
  • Xiaoyu Weng,
  • Yiping Wang,
  • Wei Yan,
  • Junle Qu

DOI
https://doi.org/10.3390/molecules28134936
Journal volume & issue
Vol. 28, no. 13
p. 4936

Abstract

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Volumetric imaging of a mouse brain in vivo with one-photon and two-photon ultralong anti-diffracting (UAD) beam illumination was performed. The three-dimensional (3D) structure of blood vessels in the mouse brain were mapped to a two-dimensional (2D) image. The speed of volumetric imaging was significantly improved due to the long focal length of the UAD beam. Comparing one-photon and two-photon UAD beam volumetric imaging, we found that the imaging depth of two-photon volumetric imaging (80 μm) is better than that of one-photon volumetric imaging (60 μm), and the signal-to-background ratio (SBR) of two-photon volumetric imaging is two times that of one-photon volumetric imaging. Therefore, we used two-photon UAD volumetric imaging to perform dynamic volumetric imaging of mouse brain blood vessels in vivo, and obtained the blood flow velocity.

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