New laboratory technique measures projected dynamic area of prosthetic heart valves.

@article{Scotten2004NewLT,
  title={New laboratory technique measures projected dynamic area of prosthetic heart valves.},
  author={Lawrence N Scotten and David K Walker},
  journal={The Journal of heart valve disease},
  year={2004},
  volume={13 1},
  pages={120-32; discussion 132-3}
}
BACKGROUND AND AIM OF THE STUDY Fluid dynamic forces, valve design factors and gravity interactively determine the complex motion of prosthetic heart valve occluders. Although motion has been investigated, in vitro, using high-speed image recording, the technique has significant cost and limitations on resolution. METHODS The kinematics of mechanical and biological valve occluders in the aortic and mitral positions were assessed by measuring projected dynamic valve area (PDVA). Valves were… CONTINUE READING

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