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Flow analyses of microvascular bifurcation using laser Doppler anemometry
T Mücke1, L M Ritschl, A Balasso
1Department of Oral and Maxillofacial Surgery, Technische Universität München, Klinikum Rechts der Isar, Munich, Germany. th.mucke@gmx.de
Journal of Reconstructive Microsurgery
|April 17, 2013
Summary
This study developed an experimental model using Laser Doppler Anemometry (LDA) to analyze microvascular flow. The findings demonstrate LDA
Area of Science:
- Biomedical Engineering
- Fluid Dynamics
- Microsurgery
Background:
- Vascular surgery impacts vessel geometry and blood flow dynamics.
- Understanding flow behavior at bifurcations is crucial for microsurgeons.
- A need exists for experimental models to analyze microvascular techniques rheologically.
Purpose of the Study:
- To establish an experimental model for rheological analysis of microvascular techniques.
- To investigate flow patterns in microvessels using advanced measurement techniques.
Main Methods:
- Utilized a true-to-scale silicone model of a microvascular bifurcation.
- Employed Laser Doppler Anemometry (LDA) for flow velocity measurements.
- Simulated physiologic human blood flow in a circulatory experimental setup.
Main Results:
- Physiologic flow separation observed at the bifurcation.
- Measured velocities ranged from 0.32 to -0.15 m/s.
- No turbulent flow detected distal to the bifurcation; oscillatory backflow noted during diastolic phases.
Conclusions:
- LDA is a valid method for rheological evaluation of microvessels.
- LDA offers high spatial and temporal resolution for flow investigations.
- This experimental model provides a valuable alternative for studying microvascular flow.
