An in vivo method for measuring turbulence in mechanical prosthesis leakage jets.

@article{Travis2004AnIV,
  title={An in vivo method for measuring turbulence in mechanical prosthesis leakage jets.},
  author={Brandon R. Travis and Thomas Decker Christensen and Morten Smerup and Morten Sm{\ae}rup Olsen and J. Michael Hasenkam and Hans Nygaard},
  journal={Journal of biomechanical engineering},
  year={2004},
  volume={126 1},
  pages={26-35}
}
This work introduces a method for the in vivo measurement and analysis of turbulence within the leakage of a mechanical heart valve. Several analysis techniques were applied to ultrasound measurements acquired within the atrium of a pig, and error associated with these techniques was analyzed. The technique chosen applies cyclic averaging to mean and maximum velocity measurements within small, normalized phase windows to calculate Reynolds normal stresses in the direction of the ultrasound beam… CONTINUE READING