Volume 16, Issue 4 e202200168
RESEARCH ARTICLE

Diffuse optical detection of global cerebral ischemia in an adult porcine model

Chuhua Fu

Chuhua Fu

Department of Neurosurgery of Southwest Hospital, Army Medical University, Chong Qing, People's Republic of China

Department of Neurosurgery, Xiangyang No.1 People's Hospital, Hubei University of Medicine, Xiangyang, People's Republic of China

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Detian Wang

Detian Wang

Department of Neurosurgery of Southwest Hospital, Army Medical University, Chong Qing, People's Republic of China

Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, Sichuan, People's Republic of China

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Long Wang

Long Wang

Department of Neurosurgery of Southwest Hospital, Army Medical University, Chong Qing, People's Republic of China

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Liguo Zhu

Liguo Zhu

Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, Sichuan, People's Republic of China

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Zeren Li

Zeren Li

Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, Sichuan, People's Republic of China

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Tunan Chen

Tunan Chen

Department of Neurosurgery of Southwest Hospital, Army Medical University, Chong Qing, People's Republic of China

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Hua Feng

Corresponding Author

Hua Feng

Department of Neurosurgery of Southwest Hospital, Army Medical University, Chong Qing, People's Republic of China

Correspondence

Hua Feng and Fei Li, Department of Neurosurgery of Southwest Hospital, Army Medical University, Chong Qing 400038, People's Republic of China.

Email: [email protected] and [email protected]

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Fei Li

Corresponding Author

Fei Li

Department of Neurosurgery of Southwest Hospital, Army Medical University, Chong Qing, People's Republic of China

Correspondence

Hua Feng and Fei Li, Department of Neurosurgery of Southwest Hospital, Army Medical University, Chong Qing 400038, People's Republic of China.

Email: [email protected] and [email protected]

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First published: 17 November 2022

Chuhua Fu and Detian Wang contributed equally to the article.

Abstract

Rapid screening for ischemic strokes in prehospital settings may improve patient outcomes by allowing early deployment of vascular recanalization therapies. However, there are no low-cost and convenient methods that can assess ischemic strokes in such a setting. Diffuse correlation spectroscopy (DCS) is a promising method for continuous, noninvasive transcranial monitoring of cerebral blood flow. In this study, we used a DCS system to detect cerebral hemodynamics before and after acute ischemic stroke in pigs. Seven adult porcines were chosen to establish ischemic stroke models via bilateral common carotid artery ligation (n = 5) or air emboli (n = 2). The results showed a significant difference in blood flow index (BFI) between the normal and ischemic groups. Relative blood flow index (rBFI) exhibited excellent results. Therefore, the diffuse optical method can assess the hemodynamic changes in acute cerebral ischemic stroke onset in pigs, and rBFI may be a promising biomarker for identifying cerebral ischemic stroke.image

CONFLICT OF INTEREST

No conflicts of interest, financial or otherwise, are declared by the authors.

DATA AVAILABILITY STATEMENT

The full data that support the findings of this study are available within the article and its supplementary material.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.