A comparison of colour Doppler imaging of orbital vessels and other methods of blood flow assessment

Graefes Arch Clin Exp Ophthalmol. 1995 Feb;233(2):80-4. doi: 10.1007/BF00241476.

Abstract

Background: Comparison of the haemodynamic measurements obtained by colour Doppler imaging and other methods of ocular blood flow measurements was desired.

Methods: The blood velocity findings from colour Doppler imaging of patients with central retinal vein occlusion were compared to the results of fluorescein video-angiography, continuous tonography and ophthalmodynamometry.

Results: Patients with low or undetectable blood velocities in the central retinal vein had longer retinal dye transit times on fluorescein video-angiography. Tonography showed a positive correlation with the velocities in the ophthalmic artery, but ophthalmodynamometry showed a negative correlation with these velocities.

Conclusion: The relationships between the blood velocities in orbital vessels and other blood flow measurements emphasise that there is a complex interaction of the blood flow parameters. Care must therefore be taken when interpreting the results of studies.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Blood Flow Velocity
  • Female
  • Humans
  • Male
  • Ophthalmic Artery / diagnostic imaging
  • Ophthalmic Artery / physiology*
  • Ophthalmodynamometry
  • Regional Blood Flow
  • Retinal Artery / diagnostic imaging
  • Retinal Artery / physiology*
  • Retinal Vein / diagnostic imaging
  • Retinal Vein / physiology*
  • Retinal Vein Occlusion / physiopathology*
  • Ultrasonography, Doppler, Color / methods*