Title :
Microvascular red blood cell velocity measurement using the image gradient method
Author :
Umetani, Jun ; Yuzawa, Chikayoshi ; Okada, Eiji ; Sekizuka, Eiichi ; Oshio, Chikara ; Minamitani, Haruyuki
Author_Institution :
Dept. of Electr. Eng., Keio Univ., Kanagawa, Japan
Abstract :
An image analysis system is described for the measurement of the blood velocity and the flow profile in microcirculation. It uses a super-high-speed video tape recorder (100 frames/s) and the image gradient method. The measured mean red blood cell velocity of the microvessels (venules having diameters of 15-40 μm) is 0.7-4.0 mm/s and the measured mean flow volume is 0.7-5.0×10-3 mm 3/s. A flow chart of the image processing algorithm and results which show the velocity vectors and temporal change of the red blood cell velocity are given
Keywords :
biological techniques and instruments; biorheology; blood; cellular transport and dynamics; velocity measurement; 15 to 40 micron; biological technique; flow profile; haemorheology; image analysis system; image gradient method; image processing algorithm; microvascular red blood cell velocity measurement; super-high-speed video tape recorder; venules; Blood flow; Fluid flow measurement; Gradient methods; High speed optical techniques; Image analysis; Image processing; Microscopy; Pixel; Red blood cells; Velocity measurement;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.95904
