Dual-display laparoscopic laser speckle contrast imaging for real-time surgical assistance
نویسندگان
چکیده
منابع مشابه
Laser speckle contrast imaging of Raynaud phenomenon.
483 peripheral microcirculatory blood flow on a large area of the body.1 LSCI is user‐friendly and shows very good reproducibility as well as excellent spa‐ tial and temporal resolutions.2 In clinical studies, LSCI coupled with reactivity tests enable to esti‐ mate the endothelial and neurovascular function. We present the measurements of skin per‐ fusion assessed by LSCI in patients with pri‐ ...
متن کاملDetermination of optimal exposure time for imaging of blood flow changes with laser speckle contrast imaging.
Laser speckle contrast imaging is becoming an established method for full-field imaging of cerebral blood flow dynamics in animal models. The sensitivity and noise in the measurement of blood flow changes depend on the camera exposure time. The relation among sensitivity, noise, and camera exposure time was investigated experimentally by imaging the speckle contrast changes in the brain after e...
متن کاملImaging depth and multiple scattering in laser speckle contrast imaging.
Laser speckle contrast imaging (LSCI) is a powerful and simple method for full field imaging of blood flow. However, the depth dependence and the degree of multiple scattering have not been thoroughly investigated. We employ three-dimensional Monte Carlo simulations of photon propagation combined with high resolution vascular anatomy to investigate these two issues. We found that 95% of the det...
متن کاملLaser speckle contrast imaging for measuring blood flow
When a diffuse object is illuminated with laser light, a random interference effect known as a speckle pattern is produced. If there is movement in the object, the speckles fluctuate in intensity. These fluctuations can be used to provide information about the movement. A simple way of accessing this information is to image the speckle pattern the fluctuations cause a blurring of the speckle, l...
متن کاملDual-Wavelength Laser Speckle Contrast Imaging (dwLSCI) Improves Chronic Measurement of Superficial Blood Flow in Hands
Laser speckle contrast imaging (LSCI) has been widely used to determine blood flow and perfusion in biological tissues. The physical model of traditional LSCI ignores the effects of scattering property distribution in relation to speckle correlation time τc and blood flow v, which further results in biased estimation. In this study, we developed a dual-wavelength laser speckle contrast imaging ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Biomedical Optics Express
سال: 2018
ISSN: 2156-7085,2156-7085
DOI: 10.1364/boe.9.005962