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Updated: Jun 20, 2025
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A Method for 2-Photon Imaging of Blood Flow in the Neocortex through a Cranial Window
Published on: February 25, 2008
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Arteries and veins in awake mice using two-photon microscopy
Shuangshuang Liu1, FangYue Liu2, Zhaoxiaonan Lin1
1Core Facilities, Zhejiang University School of Medicine, Hangzhou, China.
Journal of Anatomy
|July 22, 2024
Summary
Researchers developed a new method to distinguish between arteries and veins in the mouse brain using two-photon microscopy. This technique accurately identifies cerebral blood vessels and aids in studying brain diseases.
Area of Science:
- Neuroscience
- Biomedical Engineering
- Medical Imaging
Background:
- Distinguishing cerebral arteries and veins is crucial for understanding hemodynamics in diseases.
- The complex cerebral vascular network makes in vivo identification challenging.
Purpose of the Study:
- To develop an accurate and efficient method for cortical artery-vein separation in awake mice.
- To provide a new strategy for studying cerebrovascular pathophysiology using two-photon microscopy.
Main Methods:
- Employed a combination of multiple scanning modes of two-photon microscopy.
- Utilized a custom-designed stereoscopic fixation device for mice.
- Developed a novel method for determining blood flow direction and identifying vasculature branches.
Main Results:
- Successfully separated arteries and veins based on blood flow direction and branching patterns.
- Accurately identified penetrating arterioles and venules in awake mice.
- Isolated cerebral thrombus types without empirical knowledge or algorithms.
Conclusions:
- Presents a novel, accurate, and efficient method for cortical artery-vein separation in vivo.
- Offers a valuable tool for advancing the study of cerebrovascular diseases using two-photon microscopy.
