NDLI: Study of neurovascular coupling functions for transient focal cerebral ischemia in rats using electrocorticography functional photoacoustic microscopy (ECoG-fPAM)

Content Provider	IEEE Xplore Digital Library
Author	Lun-De Liao Meng-Lin Li Hsin-Yi Lai You-Yin Chen Thakor, N.V.
Copyright Year	2013
Description	Author affiliation: Singapore Inst. for Neurotechnology (SiNAPSE), Nat. Univ. of Singapore, Singapore, Singapore (Lun-De Liao; Thakor, N.V.) \|\| Res. Imaging Inst., Univ. of Texas Health Sci. Center at San Antonio, San Antonio, TX, USA (You-Yin Chen) \|\| Sch. of Med., Dept. of Anatomy & Neurobiol., Univ. of Maryland, Baltimore, MD, USA (Hsin-Yi Lai) \|\| Dept. of Electr. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan (Meng-Lin Li)
Abstract	Recently, the functional photoacoustic microscopy (fPAM) system has been proven to be a reliable imaging technique for measuring the total hemoglobin concentration (HbT), cerebral blood volume (CBV) and hemoglobin oxygen saturation $(SO_{2})$ in single cerebral blood vessels of rats. In this study, we report for the first time the combination of electrocorticography (ECoG) recordings and fPAM (ECoG-fPAM) to investigate functional hemodynamic changes and neuro-vascular coupling in single cortical arterioles of rats with electrical forepaw stimulation after photothrombotic stroke. Because of the optical focusing nature of our fPAM system, photo-induced ischemic stroke targeting on single cortical arterioles can be easily conducted with simple adaptation. Functional cerebral HbT, CBV and $SO_{2}$ changes associated with the induced stroke in selected arterioles from the anterior cerebral artery system were imaged with a 36 × 65-μm spatial resolution. The ECoG-fPAM system complements existing imaging techniques and has the potential to offer a favorable tool for explicitly studying cerebral hemodynamics and neuro-vascular coupling in small animal models of photo-induced ischemic stroke.
Starting Page	1799
Ending Page	1802
File Size	720613
Page Count	4
File Format	PDF
ISBN	9781457702167
ISSN	1557170X
DOI	10.1109/EMBC.2013.6609871
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-07-03
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Artificial neural networks Reliability Microscopy Educational institutions Visualization Photodiodes MATLAB Somatosensory-evoked potentials (SSEPs) Photothrombotic stroke Functional photoacoustic microscopy Cerebral hemodynamic response Forepaw electrical stimulation Electrocorticography (ECoG)
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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