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大视野运动补偿固有光信号成像用于表征大回旋脑对扩散性去极化的血流动力学反应

Large field-of-view movement-compensated intrinsic optical signal imaging for the characterization of the haemodynamic response to spreading depolarizations in large gyrencephalic brains.

作者信息

Schöll Michael Johannes, Santos Edgar, Sanchez-Porras Renan, Kentar Modar, Gramer Markus, Silos Humberto, Zheng Zelong, Gang Yuan, Strong Anthony John, Graf Rudolf, Unterberg Andreas, Sakowitz Oliver W, Dickhaus Hartmut

机构信息

1 Institute of Medical Biometry and Informatics, University Hospital Heidelberg, Heidelberg, Germany.

2 Department of Neurosurgery, University Hospital Heidelberg, Heidelberg, Germany.

出版信息

J Cereb Blood Flow Metab. 2017 May;37(5):1706-1719. doi: 10.1177/0271678X16668988. Epub 2016 Jan 1.


DOI:10.1177/0271678X16668988
PMID:27677673
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5435296/
Abstract

Haemodynamic responses to spreading depolarizations (SDs) have an important role during the development of secondary brain damage. Characterization of the haemodynamic responses in larger brains, however, is difficult due to movement artefacts. Intrinsic optical signal (IOS) imaging, laser speckle flowmetry (LSF) and electrocorticography were performed in different configurations in three groups of in total 18 swine. SDs were elicited by topical application of KCl or occurred spontaneously after middle cerebral artery occlusion. Movement artefacts in IOS were compensated by an elastic registration algorithm during post-processing. Using movement-compensated IOS, we were able to differentiate between four components of optical changes, corresponding closely with haemodynamic variations measured by LSF. Compared with ECoG and LSF, our setup provides higher spatial and temporal resolution, as well as a better signal-to-noise ratio. Using IOS alone, we could identify the different zones of infarction in a large gyrencephalic middle cerebral artery occlusion pig model. We strongly suggest movement-compensated IOS for the investigation of the role of haemodynamic responses to SDs during the development of secondary brain damage and in particular to examine the effect of potential therapeutic interventions in gyrencephalic brains.

摘要

对扩散性去极化(SDs)的血流动力学反应在继发性脑损伤的发展过程中起着重要作用。然而,由于运动伪影,在较大的大脑中表征血流动力学反应很困难。在总共18头猪的三组中,以不同配置进行了内在光学信号(IOS)成像、激光散斑血流仪(LSF)和皮层脑电图检查。通过局部应用氯化钾诱发SDs,或在大脑中动脉闭塞后自发发生。在后期处理过程中,通过弹性配准算法补偿IOS中的运动伪影。使用运动补偿的IOS,我们能够区分光学变化的四个成分,这与LSF测量的血流动力学变化密切相关。与皮层脑电图和LSF相比,我们的设置提供了更高的空间和时间分辨率,以及更好的信噪比。仅使用IOS,我们就能在一个大脑回沟丰富的大脑中动脉闭塞猪模型中识别出不同的梗死区域。我们强烈建议使用运动补偿的IOS来研究血流动力学反应在继发性脑损伤发展过程中对SDs的作用,特别是研究潜在治疗干预对大脑回沟丰富的大脑的影响。

相似文献

[1]
Large field-of-view movement-compensated intrinsic optical signal imaging for the characterization of the haemodynamic response to spreading depolarizations in large gyrencephalic brains.

J Cereb Blood Flow Metab. 2017-5

[2]
Detection of spreading depolarizations in a middle cerebral artery occlusion model in swine.

Acta Neurochir (Wien). 2020-3

[3]
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[4]
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[5]
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Neuropharmacology. 2014-9

[6]
Radial, spiral and reverberating waves of spreading depolarization occur in the gyrencephalic brain.

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[7]
Subarachnoid blood acutely induces spreading depolarizations and early cortical infarction.

Brain. 2017-10-1

[8]
Incidence, hemodynamic, and electrical characteristics of spreading depolarization in a swine model are affected by local but not by intravenous application of magnesium.

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[9]
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[10]
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引用本文的文献

[1]
Recanalization and reperfusion in clinically-relevant porcine model of stroke.

Front Neurosci. 2025-6-5

[2]
Characterization of spreading depolarizations in swine following superior sagittal sinus occlusion: a novel gyrencephalic model study.

Thromb J. 2025-2-12

[3]
Depth-Specific Hypoxic Responses to Spreading Depolarizations in Gyrencephalic Swine Cortex Unveiled by Photoacoustic Imaging.

Transl Stroke Res. 2025-6

[4]
Mild hypothermia reduces spreading depolarizations and infarct size in a swine model.

J Cereb Blood Flow Metab. 2023-6

[5]
Cerebrovascular Pressure Reactivity According to Long-Pressure Reactivity Index During Spreading Depolarizations in Aneurysmal Subarachnoid Hemorrhage.

Neurocrit Care. 2023-8

[6]
Spatial and temporal frequency band changes during infarct induction, infarct progression, and spreading depolarizations in the gyrencephalic brain.

Front Neurosci. 2022-12-5

[7]
Oxyhemoglobin and Cerebral Blood Flow Transients Detect Infarction in Rat Focal Brain Ischemia.

Neuroscience. 2023-1-15

[8]
Relevance of Porcine Stroke Models to Bridge the Gap from Pre-Clinical Findings to Clinical Implementation.

Int J Mol Sci. 2020-9-8

[9]
Direct electrophysiological evidence that spreading depolarization-induced spreading depression is the pathophysiological correlate of the migraine aura and a review of the spreading depolarization continuum of acute neuronal mass injury.

Geroscience. 2020-2

[10]
Simulation of spreading depolarization trajectories in cerebral cortex: Correlation of velocity and susceptibility in patients with aneurysmal subarachnoid hemorrhage.

Neuroimage Clin. 2017-9-6

本文引用的文献

[1]
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Physiol Rev. 2015-7

[2]
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Acta Neurochir Suppl. 2015

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Brain. 2014-8-24

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Imaging reveals the focal area of spreading depolarizations and a variety of hemodynamic responses in a rat microembolic stroke model.

J Cereb Blood Flow Metab. 2014-7-30

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Nat Rev Neurosci. 2014-6

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Radial, spiral and reverberating waves of spreading depolarization occur in the gyrencephalic brain.

Neuroimage. 2014-10-1

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[9]
Cortical spreading depression dynamics can be studied using intrinsic optical signal imaging in gyrencephalic animal cortex.

Acta Neurochir Suppl. 2013

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Simultaneous detection of hemodynamics, mitochondrial metabolism and light scattering changes during cortical spreading depression in rats based on multi-spectral optical imaging.

Neuroimage. 2013-3-16

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