Orbital Doppler sonography findings in cases of brain death.
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.
Karaali
K
K
Department of Radiology, Akdeniz University Faculty of Medicine, Antalya, Turkey.
Cevikol
C
C
Senol
U
U
Arici
G
G
Kabaalioğlu
A
A
Ramazanoğlu
A
A
Bircan
O
O
D000293:Adolescent; D000328:Adult; D000368:Aged; D001783:Blood Flow Velocity / Q000502:physiology; D001926:Brain Death / Q000000981:diagnostic imaging*; D003971:Diastole / Q000502:physiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009880:Ophthalmic Artery / Q000000981:diagnostic imaging; D009915:Orbit / Q000098:blood supply*; D012161:Retinal Artery / Q000000981:diagnostic imaging; D013599:Systole / Q000502:physiology; D017585:Ultrasonography, Doppler, Transcranial; D014655:Vascular Resistance / Q000502:physiology