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Three-dimensional non-invasive brain imaging of ischemic stroke by integrated photoacoustic, ultrasound and angiographic tomography (PAUSAT).

Publication ,  Journal Article
Menozzi, L; Del Águila, Á; Vu, T; Ma, C; Yang, W; Yao, J
Published in: Photoacoustics
February 2023

We present an ischemic stroke study using our newly-developed PAUSAT system that integrates photoacoustic computed tomography (PACT), high-frequency ultrasound imaging, and acoustic angiographic tomography. PAUSAT is capable of three-dimensional (3D) imaging of the brain morphology, blood perfusion, and blood oxygenation. Using PAUSAT, we studied the hemodynamic changes in the whole mouse brain induced by two common ischemic stroke models: the permanent middle cerebral artery occlusion (pMCAO) model and the photothrombotic (PT) model. We imaged the same mouse brains before and after stroke, and quantitatively compared the two stroke models. We observed clear hemodynamic changes after ischemic stroke, including reduced blood perfusion and oxygenation. Such changes were spatially heterogenous. We also quantified the tissue infarct volume in both stroke models. The PAUSAT measurements were validated by laser speckle imaging and histology. Our results have collectively demonstrated that PAUSAT can be a valuable tool for non-invasive longitudinal studies of neurological diseases at the whole-brain scale.

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Published In

Photoacoustics

DOI

ISSN

2213-5979

Publication Date

February 2023

Volume

29

Start / End Page

100444

Location

Germany
 

Citation

APA
Chicago
ICMJE
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Menozzi, L., Del Águila, Á., Vu, T., Ma, C., Yang, W., & Yao, J. (2023). Three-dimensional non-invasive brain imaging of ischemic stroke by integrated photoacoustic, ultrasound and angiographic tomography (PAUSAT). Photoacoustics, 29, 100444. https://doi.org/10.1016/j.pacs.2022.100444
Menozzi, Luca, Ángela Del Águila, Tri Vu, Chenshuo Ma, Wei Yang, and Junjie Yao. “Three-dimensional non-invasive brain imaging of ischemic stroke by integrated photoacoustic, ultrasound and angiographic tomography (PAUSAT).Photoacoustics 29 (February 2023): 100444. https://doi.org/10.1016/j.pacs.2022.100444.
Menozzi, Luca, et al. “Three-dimensional non-invasive brain imaging of ischemic stroke by integrated photoacoustic, ultrasound and angiographic tomography (PAUSAT).Photoacoustics, vol. 29, Feb. 2023, p. 100444. Pubmed, doi:10.1016/j.pacs.2022.100444.
Journal cover image

Published In

Photoacoustics

DOI

ISSN

2213-5979

Publication Date

February 2023

Volume

29

Start / End Page

100444

Location

Germany