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Proceedings Paper

In-vitro laser anemometry blood flow systems
Author(s): Dieter W. Liepsch; Axel Poll; Gottlieb Pflugbeil
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Paper Abstract

Lasers are used in a wide variety of medical applications. While laser catheters have been developed for highly accurate velocity measurements these are invasive; noninvasive techniques are more desirable but not as precise. The laser is, however, a great tool for in vitro measurements. Several groups internationally are using the laser in the study of local velocity distribution in microscopic areas of specially constructed models. Laser Doppler anemometry is widely used to measure the local, time-dependent velocities, while phase Doppler anemometry has been developed to measure particle size, distribution and velocity. Most recently, laser analyzer techniques have been developed for analyzing the particle size of two phase flow systems. It has become increasingly important for physicians to visualize blood flow. In addition to the techniques mentioned above, several laser sheet techniques have been developed for precise measurements. This paper presents a short review of laser techniques and shows some applications especially for the laser-Doppler anemometer.

Paper Details

Date Published: 6 August 1993
PDF: 16 pages
Proc. SPIE 2052, Fifth International Conference on Laser Anemometry: Advances and Applications, (6 August 1993); doi: 10.1117/12.150500
Show Author Affiliations
Dieter W. Liepsch, Fachhochschule Muenchen (Germany)
Axel Poll, Fachhochschule Muenchen (Germany)
Gottlieb Pflugbeil, Klinikum Rechts der Isar (Germany)


Published in SPIE Proceedings Vol. 2052:
Fifth International Conference on Laser Anemometry: Advances and Applications

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