Laser Doppler velocimetry: in-vitro and in-vivo measurements of biological fluid flows in restricted volumes

1992 ◽  
Author(s):  
Alexander V. Priezzhev ◽  
Sergei G. Proskurin
Keyword(s):  
Laser Doppler Velocimetry ◽  
Biological Fluid ◽  
Fluid Flows ◽  
Laser Doppler ◽  
Doppler Velocimetry ◽  
In Vivo Measurements

Ocular Tonometry Through Sonic Excitation and Laser Doppler Velocimetry

1979 ◽  
Vol 101 (4) ◽  
pp. 267-270 ◽  
Author(s):  
J. M. Hamelink ◽  
G. L. Cloud
Keyword(s):  
Standard Deviation ◽  
Laser Doppler Velocimetry ◽  
Empirical Relationship ◽  
Laser Doppler ◽  
Eye Disease ◽  
Laboratory Model ◽  
Doppler Velocimetry ◽  
Response Frequency

Glaucoma is an insidious eye disease which must be detected in its early stages for there to be successful treatment. Primary detection of glaucoma and evaluation of therapy have depended upon tonometric methods which require applanation of the cornea. A new method of IOP determination which is noncontacting and nonapplanating has been devised. The technique utilizes low-level sonic excitation of the eye and detection of the resulting cornea vibrations by laser Doppler velocimetry. Studies of a laboratory model and of freshly excised lambs’ eyes show that there is a measurable shift of corneal response frequencies with changing IOP. An empirical relationship between IOP and response frequency for in-vitro lamb’s eyes was found to be f = 233.65 + 6.9 (In IOP in mm Hg)1/2. Standard deviation of all data obtained in the physiological range of IOP’s was approximately 2.5 mm Hg for the experiment which was devised to test the idea. The results provide the basis of design for a procedure to be used in vivo.

scholarly journals Studies in vitro of the relationship between ultrasound and laser Doppler velocimetry and applicability to the simplified Bernoulli relationship.

Circulation ◽  
1986 ◽  
Vol 73 (2) ◽  
pp. 300-308 ◽  
Author(s):  
L M Valdes-Cruz ◽  
A P Yoganathan ◽  
T Tamura ◽  
F Tomizuka ◽  
Y R Woo ◽  
...  
Keyword(s):  
Laser Doppler Velocimetry ◽  
Laser Doppler ◽  
Doppler Velocimetry ◽  
The Relationship

In vivo human skin permeability enhancement by oleic acid: a laser Doppler velocimetry study

1999 ◽  
Vol 58 (1) ◽  
pp. 97-104 ◽  
Author(s):  
Hanafi Tanojo ◽  
Esther Boelsma ◽  
Hans E Junginger ◽  
Maria Ponec ◽  
Harry E Boddé
Keyword(s):  
Oleic Acid ◽  
Human Skin ◽  
Laser Doppler Velocimetry ◽  
Laser Doppler ◽  
Skin Permeability ◽  
Doppler Velocimetry ◽  
Permeability Enhancement

In vivo visualization method by absolute blood flow velocity based on speckle and fringe pattern using two-beam multipoint laser Doppler velocimetry

2016 ◽  
Vol 120 (8) ◽  
pp. 084701 ◽  
Author(s):  
Tomoaki Kyoden ◽  
Shoji Naruki ◽  
Shunsuke Akiguchi ◽  
Hiroki Ishida ◽  
Tsugunobu Andoh ◽  
...  
Keyword(s):  
Blood Flow ◽  
Flow Velocity ◽  
Blood Flow Velocity ◽  
Laser Doppler Velocimetry ◽  
Fringe Pattern ◽  
Laser Doppler ◽  
Doppler Velocimetry ◽  
Visualization Method

Recent advances in self-mixing laser-Doppler velocimetry: use as an in-vivo blood flow meter

2000 ◽  
Author(s):  
Lorenzo Scalise ◽  
Frits F. M. de Mul ◽  
Wiendelt Steenbergen ◽  
Anna L. Petoukhova
Keyword(s):  
Blood Flow ◽  
Laser Doppler Velocimetry ◽  
Laser Doppler ◽  
Doppler Velocimetry ◽  
Flow Meter ◽  
Recent Advances
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