scholarly journals Anterior and Posterior Optic Nerve Head Blood Flow in Nonhuman Primate Experimental Glaucoma Model Measured by Laser Speckle Imaging Technique and Microsphere Method

2012 ◽  
Vol 53 (13) ◽  
pp. 8303 ◽  
Author(s):  
Lin Wang ◽  
Grant A. Cull ◽  
Chelsea Piper ◽  
Claude F. Burgoyne ◽  
Brad Fortune
Keyword(s):  
Blood Flow ◽  
Optic Nerve ◽  
Optic Nerve Head ◽  
Nonhuman Primate ◽  
Imaging Technique ◽  
Laser Speckle ◽  
Laser Speckle Imaging ◽  
Speckle Imaging ◽  
Experimental Glaucoma ◽  
Microsphere Method

scholarly journals Fourier transforms for fast and quantitative Laser Speckle Imaging

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
J. Buijs ◽  
J. van der Gucht ◽  
J. Sprakel
Keyword(s):  
Quantitative Data ◽  
Fourier Transforms ◽  
Imaging Technique ◽  
Laser Speckle ◽  
Frequency Range ◽  
Laser Speckle Imaging ◽  
Speckle Imaging ◽  
New Approach ◽  
Speckle Patterns ◽  
New Processing

Abstract Laser speckle imaging is a powerful imaging technique that visualizes microscopic motion within turbid materials. At current two methods are widely used to analyze speckle data: one is fast but qualitative, the other quantitative but computationally expensive. We have developed a new processing algorithm based on the fast Fourier transform, which converts raw speckle patterns into maps of microscopic motion and is both fast and quantitative, providing a dynamnic spectrum of the material over a frequency range spanning several decades. In this article we show how to apply this algorithm and how to measure a diffusion coefficient with it. We show that this method is quantitative and several orders of magnitude faster than the existing quantitative method. Finally we harness the potential of this new approach by constructing a portable laser speckle imaging setup that performs quantitative data processing in real-time on a tablet.

scholarly journals Static Blood Flow Autoregulation in the Optic Nerve Head in Normal and Experimental Glaucoma

2014 ◽  
Vol 55 (2) ◽  
pp. 873 ◽  
Author(s):  
Lin Wang ◽  
Claude F. Burgoyne ◽  
Grant Cull ◽  
Simon Thompson ◽  
Brad Fortune
Keyword(s):  
Blood Flow ◽  
Optic Nerve ◽  
Optic Nerve Head ◽  
Experimental Glaucoma

Laser Speckle Imaging of Cerebral Blood Flow

2004 ◽  
pp. 165-195 ◽  
Author(s):  
Qingming Luo ◽  
Haiying Cheng ◽  
Zheng Wang ◽  
Valery V. Tuchin
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Laser Speckle ◽  
Laser Speckle Imaging ◽  
Speckle Imaging

Association Between Optic Nerve Head Blood Flow Measured Using Laser Speckle Flowgraphy and Radial Arterial Pressure During Aortic Arch Surgery

2018 ◽  
Vol 32 (2) ◽  
pp. 702-708 ◽  
Author(s):  
Hironobu Hayashi ◽  
Masahiro Okamoto ◽  
Hideaki Kawanishi ◽  
Nobuoki Tabayashi ◽  
Toyoaki Matsuura ◽  
...  
Keyword(s):  
Blood Flow ◽  
Optic Nerve ◽  
Arterial Pressure ◽  
Aortic Arch ◽  
Optic Nerve Head ◽  
Laser Speckle ◽  
Laser Speckle Flowgraphy ◽  
Aortic Arch Surgery

scholarly journals Functional laser speckle imaging of cerebral blood flow under hypothermia

2011 ◽  
Vol 16 (8) ◽  
pp. 086011 ◽  
Author(s):  
Minheng Li ◽  
Peng Miao ◽  
Yisheng Zhu ◽  
Shanbao Tong
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Laser Speckle ◽  
Laser Speckle Imaging ◽  
Speckle Imaging
Sign in / Sign up

Export Citation Format

Share Document