Title :
Influence of probe optical arrangement on biological zero in laser-Doppler perfusion measurements
Author :
Liebert, Adam ; Maniewski, Roman
Author_Institution :
Inst. of Biocybern. & Biomed. Eng., Polish Acad. of Sci., Warsaw, Poland
fDate :
31 Oct-3 Nov 1996
Abstract :
Laser-Doppler method is frequently used in clinical experiments for perfusion measurement. Level of biological zero measured usually during occlusion test can be significant in evaluation of microvascular flow. In the presented study the influence of optical arrangement of laser-Doppler probe on biological zero level is discussed. Biological zero growths with the distance between emitting and receiving fibers in laser-Doppler probe and the change can be significant for probes with fibers of diameter of 200 μm if distances are longer than 0.5 mm
Keywords :
Doppler measurement; blood flow measurement; haemorheology; laser applications in medicine; 0.5 mm; 200 micron; biological zero; clinical experiments; laser-Doppler perfusion measurements; microvascular flow; multichannel probe; occlusion test; probe optical arrangement influence; reactive hyperemia test; Biomedical measurements; Biomedical optical imaging; Blood; Cells (biology); Fiber lasers; Optical fibers; Optical scattering; Probes; Surface emitting lasers; Testing;
Conference_Titel :
Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-3811-1
DOI :
10.1109/IEMBS.1996.656915
