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MRI is uniquely suited for evaluation of vascular structures due to its sensitivity to a variety of flow-related phenomena.Recent work has demonstrated that high quality magnetic resonance angiograms(MRA)of the carotid arteries and intracranial vasculature can be achieved by using gradient-echo techniques with short echo times.These MRAs are displayed like conventional arteriograms,but are acquired in a noninvasive fashion with a minimal increase in examination time.We used MRA to visualize 50 of 54 carotid bifurcations tested,with good correlation to the intra-arterial angiograms.We examined the intracranial vasculature in over 40 patients, and demonstrated aneurysms,vascular malformations,and occlusions. |
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aneurysm
aneurysm,intracranial
angiography,cerebral
carotid angiogram
carotid artery
carotid artery occlusion,neck
carotid artery stenosis
cerebral arteries
malformation,vascular
malformation,vascular,cerebral
MRI
MRI,abnormal
MRI,angiography
review article
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