Orbital Artery Doppler Ultrasound in Brain Death

During measurement, Doppler settings were adjusted to detect low flow and the smallest available Doppler gate was used for all ODUS examinations. The imaging probe position for ODUS was used transversely and axially, and mean values were recorded. ODUS 10-18 MHz linear probe was used.

"During the measurement, Doppler settings were adjusted to detect low flow, and the minor available Doppler gate was used for all TDUS examinations. For TDUS, a temporal window was used approximately 1 cm above the midpoint of the line joining the lateral palpebral fissure and the external auditory meatus.~Transcranial Doppler ultrasonography ( TDUS) 3-5 MHz convex array probe was used."

Cranial Computed Tomography Angiography