Effect of stenosis geometry on the Doppler-catheter gradient relation in vitro: a manifestation of pressure recovery.

@article{Baumgartner1993EffectOS,
  title={Effect of stenosis geometry on the Doppler-catheter gradient relation in vitro: a manifestation of pressure recovery.},
  author={Helmut Baumgartner and Heinrich Schima and Gerald Tulzer and Peter Kuehn},
  journal={Journal of the American College of Cardiology},
  year={1993},
  volume={21 4},
  pages={1018-25}
}
OBJECTIVES This study investigated the effect of stenosis geometry on the Doppler-catheter gradient relation. BACKGROUND Although gradient estimation by Doppler ultrasound has been shown to be accurate in various clinical and in vitro settings, there have also been reports of substantial discrepancies between Doppler and catheter gradients. These conflicting results may be due to differences in geometry and hemodynamic characteristics of flow obstructions. METHODS Stenoses of various… CONTINUE READING