Doppler measurement of the pressure drop caused by arterial stenosis: an experimental study: a case report.

@article{Faccenda1985DopplerMO,
  title={Doppler measurement of the pressure drop caused by arterial stenosis: an experimental study: a case report.},
  author={Fulvio Faccenda and Yuji Usui and Merrill P. Spencer},
  journal={Angiology},
  year={1985},
  volume={36 12},
  pages={899-905}
}
A stenotic arterial lesion which reduces the cross-sectional area of the artery causes an increased velocity and, as a consequence, a loss in kinetic energy and a pressure drop. A simplified formula, derived from the Bernoulli principle, relates the pressure drop to the maximum velocity of the blood flow in the stenotic segment: delta P (mmHg) = 4 Vmax2 (m/sec). This formula has been validated for stenosis of cardiac valves. Aim of our study was to test the hypothesis that this formula applies… CONTINUE READING