Name: how to build a laser speckle contrast imaging (lsci) system to monitor blood flow
Uploaded: 2010-11-11T15:10:00
Description: Watch this Scientific Journal Video about How to Build a Laser Speckle Contrast Imaging LSCI System to Monitor Blood Flow at JoVE.com

作者承认由美国心脏协会（0735136N），达纳基金会，美国国家科学基金会（CBET/0737731），库尔特基金会的支持。

1。影像设定<ol><li>宏变焦镜头的摄像机应安装在一个垂直的阶段或手术显微镜（取而代之的是宏观变焦镜头，在显微镜客观和镜头或一个简单的双镜头系统，根据所需的放大倍率，可以用来）。 </li><li>从我们的网站下载相应的软件来控制摄像头（ <a href="http://bach.bme.utexas.edu/mediawiki/index.php/Software">http://bach.bme.utexas.edu/mediawiki/index.php/Software</a> ）。 </li><li>相机软件应该被用来确认一个对象的重点?...

<ol>
	<li>Briers, J. D., Fercher, A. F. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Retinal+blood-flow+visualization+by+means+of+laser+speckle+photography.">Retinal blood-flow visualization by means of laser speckle photography.</a> Invest. Ophthalmol. Vis. Sci. 22, 255-259 (1982).</li><li>Boas, D. A., Dunn, A. K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Laser+speckle+contrast+imaging+in+biomedical+optics.">Laser speckle contrast imaging in biomedical optics.</a> J. Biomed. Opt. 15, 011109-011109 (2010).</li><li>Dunn, A. K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Simultaneous+imaging+of+total+cerebral+hemoglobin+concentration,+oxygenation,+and+blood+flow+during+functional+activation.">Simultaneous imaging of total cerebral hemoglobin concentration, oxygenation, and blood flow during functional activation.</a> Opt Lett. 28, 28-30 (2003).</li><li>Devor, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Coupling+of+the+cortical+hemodynamic+response+to+cortical+and+thalamic+neuronal+activity.">Coupling of the cortical hemodynamic response to cortical and thalamic neuronal activity.</a> Proc Natl Acad Sci U S A. 102, 3822-3827 (2005).</li><li>Ayata, C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Pronounced+hypoperfusion+during+spreading+depression+in+mouse+cortex.">Pronounced hypoperfusion during spreading depression in mouse cortex.</a> J Cereb Blood Flow Metab. 24, 1172-1182 (2004).</li><li>Jones, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Simultaneous+multispectral+reflectance+imaging+and+laser+speckle+flowmetry+of+cerebral+blood+flow+and+oxygen+metabolism+in+focal+cerebral+ischemia.">Simultaneous multispectral reflectance imaging and laser speckle flowmetry of cerebral blood flow and oxygen metabolism in focal cerebral ischemia.</a> J. Biomed. Opt. 13, (2008).</li><li>Dunn, A. K., Bolay, H., Moskowitz, M. A., Boas, D. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Dynamic+imaging+of+cerebral+blood+flow+using+laser+speckle.">Dynamic imaging of cerebral blood flow using laser speckle.</a> J Cereb Blood Flow Metab. 21, 195-201 (2001).</li><li>Dunn, A. K., Devor, A., Dale, A. M., Boas, D. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Spatial+extent+of+oxygen+metabolism+and+hemodynamic+changes+during+functional+activation+of+the+rat+somatosensory+cortex.">Spatial extent of oxygen metabolism and hemodynamic changes during functional activation of the rat somatosensory cortex.</a> Neuroimage. 27, 279-290 (2005).</li><li>Farkas, E., Bari, F., Obrenovitch, T. P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Multi-modal+imaging+of+anoxic+depolarization+and+hemodynamic+changes+induced+by+cardiac+arrest+in+the+rat+cerebral+cortex.">Multi-modal imaging of anoxic depolarization and hemodynamic changes induced by cardiac arrest in the rat cerebral cortex.</a> Neuroimage. 51, 734-742 (2010).</li><li>Sakadzic, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Simultaneous+imaging+of+cerebral+partial+pressure+of+oxygen+and+blood+flow+during+functional+activation+and+cortical+spreading+depression.">Simultaneous imaging of cerebral partial pressure of oxygen and blood flow during functional activation and cortical spreading depression.</a> Appl. Opt. 48, (2009).</li><li>Ponticorvo, A., Dunn, A. K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Simultaneous+imaging+of+oxygen+tension+and+blood+flow+in+animals+using+a+digital+micromirror+device.">Simultaneous imaging of oxygen tension and blood flow in animals using a digital micromirror device.</a> Opt Express. 18, 8160-8170 (2010).</li></ol>

在这段视频中，我们已经证明建立和使用激光散斑对比成像（LSCI）系统血流量的变化看，它是多么容易。 LSCI在20世纪80年代开发的一种方式产生1视网膜中的血液流动的地图。虽然仍用于图像的视网膜和皮肤灌注，它已成为极受欢迎，作为一个图像在大脑中 2血流技术。这主要是由于出色的空间和时间分辨率和简单的仪器。 LSCI已被用来调查血流量的变化，由于3,4功能激活?...

该技术是多才多艺的，足够的设备广泛用于。执行实验所需的唯一的事情是一个兼容的相机镜头，激光二极管的任何类型的控制器，并提供软件。在视频中所使用的特定设备表中包含以上。 一个完整列表可以在这个实验中使用的额外的零件被发现在我们的网站<a href="http://bach.bme.utexas.edu/mediawiki/index.php/Hardware">，</a> http://bach.bme.utexas.edu/mediawiki/index.php/Hardware

how to build a laser speckle contrast imaging (lsci) system to monitor blood flow

激光散斑对比度成像（LSCI）是一个简单而强大的技术，是满场血流显像。技术分析在动态散斑检测如何激光多普勒频移进行分析来确定粒子的速度运动的粒子的波动。因为它可以用来监测的红血细胞的运动，LSCI已成为一个流行的工具测量组织如视网膜，皮肤和大脑的血流量。在神经科学，其中可量化的生理活动过程中，如功能激活，中风和蔓延的去极化的血流量的变化，它已成为特别有用。 LSCI也有吸引力，因为它提供了良好的空间和时间分辨率，而使用廉价的仪器，可以很容易地与其他成像方式相结合。在这里，我们展示如何构建一个LSCI设置和证明其有能力，监测在动物实验中大脑中的血液流量的变化。

Watch this Scientific Journal Video about How to Build a Laser Speckle Contrast Imaging LSCI System to Monitor Blood Flow at JoVE.com

How to Build a Laser Speckle Contrast Imaging LSCI System to Monitor Blood Flow

本视频演示了如何构建一个激光散斑对比度成像（LSCI）系统，可以很容易地被用来监测血液流量。

如何建立一个激光散斑对比度成像（LSCI）系统，以监测血流

Laser Speckle Contrast Imaging (LSCI) is a simple yet powerful technique that is used for full-field imaging of blood flow.  The technique analyzes ...

Research

JoVE Journal

Neuroscience

How to Build a Laser Speckle Contrast Imaging (LSCI) System to Monitor Blood Flow

Cerebral Blood Oxygenation Measurement Based on Oxygen-dependent Quenching of Phosphorescence

脑血氧测量基于磷光氧依赖淬火

Monitoring of the spatiotemporal characteristics of cerebral blood and tissue oxygenation is crucial for better understanding of the 
...

科研

神经科学

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Each of our eyes normally sees a slightly different image of the world around us. The brain can combine these two images into a single coherent ...

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Investigation of the pathophysiology of injury after intracerebral
hemorrhage (ICH) requires a reproducible animal model.  While ICH
accounts for 10-15% ...

In vivo Imaging of Optic Nerve Fiber Integrity by Contrast-Enhanced MRI in Mice

In vivo Imaging of Optic Nerve Fiber Integrity by Contrast-Enhanced MRI in Mice

在视神经纤维通过诚信小鼠对比增强MRI 活体成像

The rodent visual system encompasses retinal ganglion cells and their axons that form the optic nerve to enter thalamic and midbrain centers, and ...

Use of a Caspase Multiplexing Assay to Determine Apoptosis in a Hypothalamic Cell Model

使用胱天蛋白酶复分析，以确定细胞凋亡的下丘脑细胞模型

The ability to multiplex assays in studies of complex cellular mechanisms eliminates the need for repetitive experiments, provides internal controls, and ...

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Live Imaging of Drosophila Larval Neuroblasts

的实时成像<em&gt;果蝇</em&gt;幼虫神经母细胞

Stem cells divide asymmetrically to generate two progeny cells with unequal fate potential: a self-renewing stem cell and a differentiating cell. Given ...

Video Imaging and Spatiotemporal Maps to Analyze Gastrointestinal Motility in Mice

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The enteric nervous system (ENS) plays an important role in regulating gastrointestinal (GI) motility and can function independently of the central ...

Microglia as a Surrogate Biosensor to Determine Nanoparticle Neurotoxicity

小胶质细胞作为替代生物传感器确定纳米颗粒神经毒性

Nanoparticles found in air pollutants can alter neurotransmitter profiles, increase neuroinflammation, and alter brain function. Therefore, the assay ...

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Understanding the mechanisms that control critical biological events of neural cell populations, such as proliferation, differentiation, or cell fate ...

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The present study discusses the characteristics of visual event-related potentials (VEPs) and outlines methodological steps for obtaining reliable ...