RI in central retinal artery as assessed by CDI does not correspond to retinal vascular resistance.

  title={RI in central retinal artery as assessed by CDI does not correspond to retinal vascular resistance.},
  author={Elzbieta A. Polska and Karl Kircher and Paulina Ehrlich and Prof. Dr. V. V{\'e}csei and Leopold Schmetterer},
  journal={American journal of physiology. Heart and circulatory physiology},
  volume={280 4},
The aim of the present study was to investigate the association between ultrasound Doppler measurements of resistive index (RI) in the central retinal artery and retinal vascular resistance (R) assessed with laser Doppler velocimetry, vessel size measurement, and calculation of ocular perfusion pressure (PP) in healthy subjects. An increase in vascular resistance was induced by inhalation of 100% O(2). During hyperoxia no significant changes in PP were observed. Mean flow velocity in main… CONTINUE READING


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