In Vivo Visualization of Brain Vasculature in Alzheimer's Disease Mice by High-Frequency Micro-Doppler Imaging

Hsin Che Li, Pei Yu Chen, Hsiang Fan Cheng, Yu Min Kuo, Chih Chung Huang

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Cerebrovascular disorders are associated with Alzheimer's disease (AD). Functional analysis of the cerebral vasculature requires an in vivo approach to visualize the blood flow in small animal brains. This paper proposes a high-frequency micro-Doppler imaging (HFμDI) technology for mapping mouse cerebral vasculature. Methods: HFμDI used a 40-MHz transducer with an ultrafast ultrasound imaging technology that enabled in vivo visualization of the mouse brain up to 3 mm in depth; furthermore, a minimal vessel diameter of 48 μm could be determined. Results: Animal experiments determined that the cortical and hippocampal vessel density in young wild-type (WT) mice was similar to that in middle-aged WT mice. However, compared with the vessel density in middle-aged WT mice, that in middle-aged mice with AD was significantly lower, particularly in the hippocampus. Discussion: In vivo observation of cerebral vasculature demonstrated the effectiveness of HFμDI for the preclinical study of AD, and a potential way for human diagnosis was provided.

Original languageEnglish
Article number8666731
Pages (from-to)3393-3401
Number of pages9
JournalIEEE Transactions on Biomedical Engineering
Volume66
Issue number12
DOIs
Publication statusPublished - 2019 Dec

All Science Journal Classification (ASJC) codes

  • Biomedical Engineering

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