Potential limitations of center-line pulsed Doppler recordings: an in vitro flow visualization study.

@article{Ojha1989PotentialLO,
  title={Potential limitations of center-line pulsed Doppler recordings: an in vitro flow visualization study.},
  author={Matadial Ojha and K W Wayne Johnston and R. S. C. Cobbold and Robert L. Hummel},
  journal={Journal of vascular surgery},
  year={1989},
  volume={9 4},
  pages={515-20}
}
In this study an in vitro model that permits visualization of the flow velocity profile has been used to determine if duplex pulsed Doppler recordings made with a small sample volume in the center line of the vessel can determine the severity of a stenosis in the 38% to 75% range of cross-sectional area reduction. Because most Doppler instruments measure the maximum peak frequency and the extent of spectral broadening, observations in the flow model included changes in the center-line maximum… CONTINUE READING