The left side has shown an acute thrombus causing total blockage throughout the common carotid artery from proximal to distal part.
Huge collateral has been spotted on and chased to be found feeding the internal carotid artery.
The left vertebral artery has demonstrated "rabbit-shaped" spectral trace, which indicates partial subclavian steal syndrome.
Left subclavian artery proximally has an elevated peak systolic velocity to 370 cm/s.