Title :
A semiconductor laser used for direct measurement of the blood perfusion of tissue
Author :
de Mul, F.F.M. ; Koelink, M.H. ; Weijers, A.L. ; Greve, J. ; Aarnoudse, J.G. ; Graaff, R. ; Dassel, A.C.M.
Author_Institution :
Dept. of Appl. Phys., Twente Univ., Enschede, Netherlands
Abstract :
An instrument consisting merely of a semiconductor laser in its own housing was used to measure the blood perfusion in tissue. Use is made of the feedback of Doppler-scattered light to the photodiode in the laser housing. A recording perfusion of a finger under occlusion of blood flow in the arm is shown.
Keywords :
biomedical measurement; haemorheology; laser applications in medicine; Doppler-scattered light feedback; arm blood flow occlusion; finger perfusion recording; laser housing; photodiode; semiconductor laser instrument; tissue blood perfusion measurement; Biomedical measurements; Blood; Blood flow; Fiber lasers; Fingers; Frequency; Instruments; Laser feedback; Laser modes; Light scattering; Optical scattering; Photodiodes; Semiconductor lasers; Blood Flow Velocity; Evaluation Studies as Topic; Fingers; Humans; Laser-Doppler Flowmetry; Semiconductors;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
