Results 111 to 120 of about 234,282 (231)

Direct characterization of tissue dynamics with laser speckle contrast imaging.

open access: yesBiomedical Optics Express, 2022
Laser speckle contrast imaging (LSCI) has gained broad appeal as a technique to monitor tissue dynamics (broadly defined to include blood flow dynamics), in part because of its remarkable simplicity.
Shuqi Zheng, J. Mertz
semanticscholar   +1 more source

Electro‐Active Polymer Actuated Microfiltration Membranes: Design, Performance, and Particle Dynamics

open access: yesAdvanced Functional Materials, EarlyView.
The concept of foulant particle manipulation and detachment from active microfiltration membranes via voltage‐driven vibrations is introduced. Actuator components are initially integrated onto the filtration membranes using an airbrush spray printing technique.
Irem Gurbuz, Hanieh Bazyar, Andres Hunt
wiley   +1 more source

Non-invasive imaging of microcirculation: a technology review

open access: yesMedical Devices: Evidence and Research, 2014
Sam Eriksson,1,2 Jan Nilsson,1,2 Christian Sturesson1,2 1Department of Surgery, Clinical Sciences Lund, Lund University, 2Skåne University Hospital, Lund, Sweden Abstract: Microcirculation plays a crucial role in physiological processes of tissue ...
Eriksson S, Nilsson J, Sturesson C
doaj  

Angular Spectra Tunable Random Lasing for High Contrast Imaging

open access: yesAdvanced Physics Research, 2023
Random lasers with low spatial coherence have important potential applications in speckle‐free imaging and displaying. Here, an angular spectra (AS) tunable random laser is proposed through directly coupling a microcavity with a commercial optical fiber.
Huihui Shen   +6 more
doaj   +1 more source

Blind Ghost Imaging

open access: yes, 2018
Ghost imaging is an unconventional optical imaging technique that reconstructs the shape of an object combining the measurement of two signals: one that interacted with the object, but without any spatial information, the other containing spatial ...
Bertolotti, Jacopo   +6 more
core   +2 more sources

Handheld laser speckle contrast perfusion imaging [PDF]

open access: yes, 2021
Laser speckle contrast imaging (LSCI) is a noninvasive method for evaluation of microcirculatory blood flow. LSCI has a broad medical application such as reconstructive surgery, burns and dermatology. Commercially available LSCI systems are bulky and operate in mounted modality.
openaire   +1 more source

Characterization of Atherosclerotic Plaques by Laser Speckle Imaging [PDF]

open access: yesCirculation, 2005
Background— A method capable of determining atherosclerotic plaque composition and measuring plaque viscoelasticity can provide valuable insight into intrinsic features associated with plaque rupture and can enable the identification of high-risk lesions.
Seemantini K, Nadkarni   +9 more
openaire   +2 more sources

Physics-Informed Generative Adversarial Networks for Laser Speckle Noise Suppression

open access: yesSensors
In high-resolution microscopic imaging, using shorter-wavelength ultraviolet (UV) lasers as illumination sources is a common approach. However, the high spatial coherence of such lasers, combined with the surface roughness of the sample, often introduces
Xiangji Guo   +4 more
doaj   +1 more source

Improving Laser Speckle Imaging Technology

open access: yes, 2022
I work at the Institute for Computer Science and Control (SZTAKI), where my research group recently started to explore the field of laser speckle imaging with a focus on improving Laser Speckle Contrast Imaging (LSCI). The method is based on the laser speckle phenomenon, which is in fact the interference pattern of backscattered coherent light.
openaire   +1 more source

Dynamics of laser speckle imaging of blood flow in the tissues at partial temporary pancreatic ischemia of hungry, fed and alcoholized rats [PDF]

open access: yesСаратовский научно-медицинский журнал, 2016
The aim of the study is to determine the influence of a partial temporary ischemia and reperfusion on the development of pancreatitis in laboratory rats. Material and Methods. The experiments were performed on 73 white rats.
Alexandrov D.A.   +6 more
doaj  

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