Fig. 3From: Transcranial Doppler ultrasonography (uses, limitations, and potentials): a review articlePatient with right side contusion. a CT scan demonstrating contusion. b Right common carotid artery injection showing severe vasospasm affecting right carotid siphon before angioplasty and corresponding TCD measured CBFV in the right carotid siphon. c Resolution of vasospasm after transluminal angioplasty and TCD showed CBFV normalization after angioplasty [5]Back to article page