Evaluation of the Cerebral Vessels
In the last decade there has been a dramatic shift to noninvasive imaging of the cerebral vessels. This is justified since cerebral digital subtraction angiography (DSA) still has a risk of neurological complications despite advances in techniques and safer contrast agents. Carotid Doppler ultrasonography (US) is an excellent screening tool to study the carotid bifurcation in patients with transient is-chemic attacks and stroke. Transcranial Doppler US is useful to detect early vasospasm in patients with subarachnoid hemorrhage. Multislice computed tomography (CT) and magnetic resonance imaging (MRI) have become effective methods to image the cerebral arteries and veins. DSA is now used selectively in treatment planning after noninvasive imaging has been used for diagnosis.
KeywordsVertebral Artery Moyamoya Disease Posterior Inferior Cerebellar Artery Dural Sinus Cavernous Malformation
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