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Orbital Doppler sonography findings in cases of brain death
K Karaali1, C Cevikol, U Senol
1Department of Radiology, Akdeniz University Faculty of Medicine, Antalya, Turkey.
AJNR. American Journal of Neuroradiology
|May 18, 2000
Abstract:
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.