Local haemodynamics and shear stress in cuffed and straight PTFE-venous anastomoses: an in-vitro comparison using particle image velocimetry.

@article{Heise2003LocalHA,
  title={Local haemodynamics and shear stress in cuffed and straight PTFE-venous anastomoses: an in-vitro comparison using particle image velocimetry.},
  author={Michael Heise and Sven Christian Schmidt and Ulf Krueger and Robert Pfitzmann and Hans Scholz and Peter Neuhaus and Utz Settmacher},
  journal={European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery},
  year={2003},
  volume={26 4},
  pages={367-73}
}
OBJECTIVES To use particle image velocimetry (PIV) to study the haemodynamics and shear stress associated with cuffed and straight PTFE-venous anastomoses. METHODS Silastic models of a straight and cuffed (Venaflo) PTFE-venous anastomoses were attached to a pulsatile flow 'Berlin Heart' circuit filled with glycerine/water and hollow glass tracer spheres. Instantaneous velocity fields were obtained PIV and shear rates and patterns calculated from frame-by-frame analysis. RESULTS A high… CONTINUE READING

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