Results 21 to 30 of about 26,542 (324)

A novel effective method for the assessment of microvascular function in male patients with coronary artery disease: a pilot study using laser speckle contrast imaging [PDF]

open access: yesBrazilian Journal of Medical and Biological Research, 2016
Evaluation of microvascular endothelial function is essential for investigating the pathophysiology and treatment of cardiovascular and metabolic diseases.
J.P. Borges   +6 more
doaj   +3 more sources

Choosing a laser for laser speckle contrast imaging [PDF]

open access: yesScientific Reports, 2019
AbstractThe 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 of various elements of the imaging system can adversely affect the quality of the signal ...
Dmitry D. Postnov   +3 more
openaire   +4 more sources

Laser speckle contrast imaging in biomedical optics [PDF]

open access: yesJournal 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, Andrew K, Dunn
openaire   +2 more sources

Enhancement of microvessel in laser speckle image using gaussian kernel template [PDF]

open access: yesJournal of Innovative Optical Health Sciences, 2019
Laser speckle contrast imaging (LSCI) is an optical imaging method, which can monitor microvascular flow variation directly without addition of any ectogenous dye.
Yameng Zhang   +4 more
doaj   +1 more source

Clinical applications of laser speckle contrast imaging: a review [PDF]

open access: yesJournal of Biomedical Optics, 2019
When a biological tissue is illuminated with coherent light, an interference pattern will be formed at the detector, the so-called speckle pattern. Laser speckle contrast imaging (LSCI) is a technique based on the dynamic change in this backscattered light as a result of interaction with red blood cells. It can be used to visualize perfusion in various
Heeman, Wido   +3 more
openaire   +4 more sources

Choosing a model for laser speckle contrast imaging

open access: yesBiomedical Optics Express, 2021
Laser speckle contrast imaging (LSCI) is a real-time full-field non-invasive technique, which is broadly applied to visualize blood flow in biomedical applications. In its foundation is the link between the speckle contrast and dynamics of light scattering particles–erythrocytes. The mathematical form describing this relationship, which is critical for
Chang Liu   +4 more
openaire   +2 more sources

Awake chronic mouse model of targeted pial vessel occlusion via photothrombosis [PDF]

open access: yes, 2020
Animal models of stroke are used extensively to study the mechanisms involved in the acute and chronic phases of recovery following stroke. A translatable animal model that closely mimics the mechanisms of a human stroke is essential in understanding ...
Boas, David A.   +9 more
core   +1 more source

Enhancing laser speckle reduction by decreasing the pitch of a chiral nematic liquid crystal diffuser

open access: yesScientific Reports, 2021
The artefact known as speckle can plague numerous imaging applications where the narrow linewidth of laser light is required, which includes laser projection and medical imaging.
David J. Hansford   +3 more
doaj   +1 more source

Laser speckle contrast imaging compared with indocyanine green in renal perfusion of a porcine model

open access: yesCurrent Urology, 2023
. Background. When viewed under near-infrared light, indocyanine green (ICG) signal for kidney perfusion can be utilized in partial nephrectomy. Laser speckle contrast imaging (LSCI) uses coherent light to detect perfusion during real-time laparoscopic ...
Jonathan Noël   +10 more
doaj   +1 more source

Laser Speckle Contrast Imaging Based on a Mobile Phone Camera

open access: yesIEEE Access, 2021
Laser speckle contrast imaging (LSCI) technology, a type of blood flow monitoring technology, has broad application prospects and has become an attractive subject of research.
Ping Kong   +4 more
doaj   +1 more source

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