Results 31 to 40 of about 10,506 (277)

Choosing a model for laser speckle contrast imaging

Biomedical 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, Kıvılcım Kılıç, Sefik Evren Erdener, David A. Boas, Dmitry D. Postnov   +4 more
openaire   +2 more sources

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]

Brazilian 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, G.O. Lopes, V. Verri, M.P. Coelho, P.M.C. Nascimento, D.A. Kopiler, E. Tibirica   +6 more
doaj   +3 more sources

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

Journal 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, Yuemei Zhao, Weitao Li, Zhiyu Qian, Lidong Xing   +4 more
doaj   +1 more source

Influence of wavefront types on movement artefacts in handheld laser speckle contrast perfusion imaging [PDF]

, 2021
Laser speckle contrast imaging (LSCI) is a non-invasive and affordable technique to visualize skin perfusion. Handheld use of the system facilitates measurements on various skin areas in a flexible manner.
Chizari, Ata; id_orcid, Steenbergen, Wiendelt, Tsong, Wilson, Knop, Tom, Schwieters, Sven, Chizari, Ata   +5 more
core   +1 more source

Calculate Speckle Contrast

, 2022
MATLAB functions for calculating spatial and temporal speckle contrast for performing laser speckle contrast imaging.
Colin Sullender
core   +1 more source

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

Scientific 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, Yihan Jin, Steve J. Elston, Stephen M. Morris   +3 more
doaj   +1 more source

Real-time quantification of bowel perfusion using Laparoscopic Laser Speckle Contrast Imaging (LSCI) in a porcine model

BMC Surgery, 2023
Background/purpose Real-time quantification of tissue perfusion can improve intraoperative surgical decision making. Here we demonstrate the utility of Laser Speckle Contrast Imaging as an intra-operative tool that quantifies real-time regional ...
Saloni Mehrotra, Yao Z. Liu, Chibueze A. Nwaiwu, Vasiliy E. Buharin, Roman Stolyarov, Steven D. Schwaitzberg, Matthew F. Kalady, Peter C. W. Kim   +7 more
doaj   +1 more source

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

Current 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, Anya Mascarenhas, Chibueze A. Nwaiwu, Yao Liu, Marcio Moschovas, Vasiliy E. Buharin, John Oberlin, Saloni Mehrotra, Alyson F. Dechert, Peter C. W. Kim, Vipul Patel   +10 more
doaj   +1 more source

Laser Speckle Modeling and Simulation for Biophysical Dynamics: Influence of Sample Statistics

Journal of Biomedical Photonics & Engineering, 2017
Laser speckle is a statistical phenomenon and should be treated as such when establishing experimental parameters for using laser speckle techniques to infer information about the dynamics of a coherently illuminated medium, such as biological tissue ...
Kosar Khaksari, Sean J. Kirkpatrick
doaj   +1 more source

Laser Speckle Contrast Imaging Based on a Mobile Phone Camera

IEEE 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, Hao Xu, Ran Li, Gang Huang, Wei Liu   +4 more
doaj   +1 more source