Vessel diameter changes during the cardiac cycle

@article{Chen1994VesselDC,
  title={Vessel diameter changes during the cardiac cycle},
  author={Hui Cheng Chen and Vinod G Patel and Jutta Wiek and Salwan M Rassam and EvaM. Kohner},
  journal={Eye},
  year={1994},
  volume={8},
  pages={97-103}
}
Retinal vessel diameter, which is an important parameter in blood flow measurement, is affected by pulsation during the cardiac cycle and by vasomotion. This project studied these changes by analysing three monochromatic fundus photographs taken in eight arbitrary parts of the cardiac cycle of 10 healthy subjects. It was found that the venous diameter decreased in early systole, increasing thereafter to a maximum level in early diastole and then declined towards end diastole. The maximum change… CONTINUE READING
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