Comparing the performance potential of speckle contrast optical spectroscopy and diffuse correlation spectroscopy for cerebral blood flow monitoring using Monte Carlo simulations in realistic head geometries [PDF]
Neurophotonics. Significance The non-invasive measurement of cerebral blood flow based on diffuse optical techniques has seen increased interest as a research tool for cerebral perfusion monitoring in critical care and functional brain imaging.
Mitchell B. Robinson +8 more
openalex +2 more sources
Laser speckle contrast imaging in biomedical optics [PDF]
Journal of Biomedical Optics, 2010 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
David A Boas
exaly +3 more sources
Laser speckle contrast imaging: theoretical and practical limitations [PDF]
Journal of Biomedical Optics, 2013 When laser light illuminates a diffuse object, it produces a random interference effect known as a speckle pattern. If there is movement in the object, the speckles fluctuate in intensity. These fluctuations can provide information about the movement.
David Briers +7 more
openalex +4 more sources
Choosing a laser for laser speckle contrast imaging [PDF]
Scientific Reports, 2019 The use of laser speckle contrast imaging (LSCI) has expanded rapidly for characterizing the motion of scattering particles. Speckle contrast is related to the dynamics of the scattering particles via a temporal autocorrelation function, but the quality ...
D. Postnov +3 more
semanticscholar +5 more sources
Fiber-Based Ultra-High-Speed Diffuse Speckle Contrast Analysis System for Deep Blood Flow Sensing Using a Large SPAD Camera [PDF]
BiosensorsDiffuse speckle contrast analysis (DSCA), also called speckle contrast optical spectroscopy (SCOS), has emerged as a groundbreaking optical imaging technique for tracking dynamic biological processes, including blood flow and tissue perfusion.
Quan Wang +12 more
doaj +2 more sources
Photonics, 2019 Laser speckle imaging (LSI) is a well-known and useful approach for the non-invasive visualization of flows and microcirculation localized in turbid scattering media, including biological tissues (such as brain vasculature, skin capillaries etc ...
Vyacheslav Kalchenko +5 more
doaj +2 more sources
Real-time intestinal perfusion assessment for anastomotic site selection using laser speckle contrast imaging: Verification in a porcine model [PDF]
Surgery Open ScienceIntroduction: Adequate blood perfusion is widely recognized as a crucial factor for successful healing of an anastomosis and avoid anastomotic leakage.
Danique J.I. Heuvelings +9 more
doaj +2 more sources
Precision Speckle Pattern Reconstruction for High-contrast Imaging
The Astronomical Journal, 2022 In high-contrast imaging, a large instrumental, technological, and algorithmic effort is made to reduce residual speckle noise and improve the detection capabilities.
Dotan Gazith, Barak Zackay
doaj +3 more sources
Enhancement of vascular visualization in laser speckle contrast imaging based on image algorithms. [PDF]
J Biomed OptYan L +8 more
europepmc +2 more sources
Speckle Space–Time Covariance in High-contrast Imaging
The Astronomical Journal, 2023 We introduce a new framework for point-spread function subtraction based on the spatiotemporal variation of speckle noise in high-contrast imaging data where the sampling timescale is faster than the speckle evolution timescale.
Briley Lewis +4 more
doaj +5 more sources