Laser speckle contrast imaging in biomedical optics
David A. Boas,Andrew K. Dunn +1 more
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TLDR
The underlying physics of speckle contrast imaging is reviewed, recent developments to improve the quantitative accuracy of blood flow measures are discussed and applications in neuroscience, dermatology and ophthalmology are reviewed.Abstract:
First introduced in the 1980s, laser speckle contrast imaging is a powerful tool for full-field imaging of blood flow. Recently laser speckle contrast imaging has gained increased attention, in part due to its rapid adoption for blood flow studies in the brain. We review the underlying physics of speckle contrast imaging and discuss recent developments to improve the quantitative accuracy of blood flow measures. We also review applications of laser speckle contrast imaging in neuroscience, dermatology and ophthalmology.read more
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Static laser speckle contrast analysis for noninvasive burn diagnosis using a camera-phone imager
Sigal Ragol,Itay Remer,Yaron Shoham,Sivan Hazan,Udi Willenz,Igor Sinelnikov,Vladimir Dronov,Lior Rosenberg,Alberto Bilenca +8 more
TL;DR: It is suggested that relative changes in the static-to-dynamic scattering composition of burns can dominate relative changesIn blood flow for burns of different severity, showing the potential to enable LASCA-based burn diagnosis with a simple imager.
Journal ArticleDOI
Focusing and energy deposition inside random media
Xiaojun Cheng,Azriel Z. Genack +1 more
TL;DR: Through calculations and simulations, it is discovered that the variation with depth of the maximal energy density and the contrast in optimal focusing are determined by the participation number M(z) of the energy density eigenvalues, while its inverse gives the variance of theEnergy density at z in a single configuration.
Journal ArticleDOI
Architecture of the rat nephron-arterial network: analysis with micro-computed tomography.
Donald J. Marsh,Dmitry D. Postnov,Douglas J. Rowland,Anthony S. Wexler,Olga Sosnovtseva,Niels Henrik Holstein-Rathlou +5 more
TL;DR: An irregular-network tree structure with vascular nodes, where arteriolar activity and local blood pressure interact, is suggested, where juxtamedullary nephrons have longer afferent arterioles and more widespread synchronization is predicted.
Journal ArticleDOI
Real-time monitoring of bacterial growth kinetics in suspensions using laser speckle imaging.
Hadi Loutfi,Hadi Loutfi,Fabrice Pellen,Bernard Le Jeune,Roger Lteif,Mireille Kallassy,Guy Le Brun,Marie Abboud +7 more
TL;DR: This work shows that laser speckle imaging is a reliable technique that can be used to perform real-time monitoring of bacteria growth kinetic in liquid culture media and shows that bothSpeckle grain size and spatial contrast decrease with bacterial growth.
Journal ArticleDOI
Enriched Environment Elicits Proangiogenic Mechanisms After Focal Cerebral Ischemia
Hongyu Xie,Kewei Yu,Naiyun Zhou,Xueyan Shen,Shan Tian,Bei Zhang,Yuyang Wang,Junfa Wu,Gang Liu,Congyu Jiang,Ruiping Hu,Cenk Ayata,Yi Wu +12 more
TL;DR: Exposure to EE promotes angiogenesis in the ischemic brain that may in part be mediated by blood-borne factors, and this effect is associated with greater improvement in neurological function and higher peri-infarct vascular density.
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