Orbital Doppler sonography findings in cases of brain death

AJNR Am J Neuroradiol. 2000 May;21(5):945-7.


In this study, we investigated the blood flow velocity changes in orbital arteries by using Doppler sonography in eight patients with brain death. Peak-systolic and end-diastolic velocities and resistive indices of the ophthalmic and central retinal arteries were evaluated. We observed the absence or reversal of end-diastolic blood flow in these arteries. To our knowledge, this finding has not been previously reported to be associated with brain death.

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Blood Flow Velocity / physiology
  • Brain Death / diagnostic imaging*
  • Diastole / physiology
  • Female
  • Humans
  • Male
  • Middle Aged
  • Ophthalmic Artery / diagnostic imaging
  • Orbit / blood supply*
  • Retinal Artery / diagnostic imaging
  • Systole / physiology
  • Ultrasonography, Doppler, Transcranial*
  • Vascular Resistance / physiology