Development of a laser speckle imaging system for measuring relative blood flow velocity

2006 ◽  
Author(s):  
Michael S. D. Smith ◽  
Ernie F. Packulak ◽  
Michael G. Sowa
Keyword(s):  
Blood Flow ◽  
Flow Velocity ◽  
Blood Flow Velocity ◽  
Imaging System ◽  
Laser Speckle ◽  
Laser Speckle Imaging ◽  
Speckle Imaging

scholarly journals Low Cost Laser Speckle Imaging System for Blood Flow Assessment

2019 ◽  
Vol 8 (2S8) ◽  
pp. 1413-1419
Keyword(s):  
Blood Flow ◽  
Imaging System ◽  
Low Cost ◽  
Laser Speckle ◽  
Laser Source ◽  
Tissue Blood Flow ◽  
Laser Speckle Imaging ◽  
Speckle Imaging ◽  
Experimental Conditions ◽  
Flow Perfusion

This paper aims to demonstrate the feasibility of using a low cost laser speckle imaging built for the detection of changes of tissue blood flow with different experimental conditions. Images of anterior portion of the wrist of four healthy adult volunteers illuminated by a laser source of wavelength 650 nm were collected via a monochromatic charge-coupled device (CCD) imager. The mean and standard deviation (SD) of blood flow perfusion was predicted as 3.92 ± 1.47 and 2.90 ± 1.39, respectively, for measurements at rest condition and during blood flow occlusion. This work showed the ability of the developed system to detect changes in blood flow perfusion with differences in the experimental conditions. However, further works are required to further confirm the suitability of the system before it is used for different clinical applications such as monitoring of blood flow during diabetic foot ulcers healing following standard medical treatment.

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

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
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