Click Here to return To Results

 

Magnetic Resonance Angiography in Vertebrobasilar Ischemia Stroke 24:1310-1315, Rother,J.,et al, 1993 See this aricle in Pubmed Article Abstract Magnetic resonance angiography correctly identified all occlusions, stenoses,and an aneurysm within the distal vertebrobasilar system as revealed by conventional intra-arterial arteriography but missed the diagnosis of vertebral artery dissection in one case.This results in a sensitivity of magnetic resonance angiography of 97%and a specificity of 98.9%.However,the degree of stenoses was difficult to evaluate by magnetic resonance angiography.At least for severe obstructive lesions,this drawback can be eliminated by application of presaturation pulses,which allow the analysis of flow direction and collateral blood flow.Doppler ultrasound studies add useful hemodynamic information for less severe degrees of stenoses.The combined use of magnetic resonance angiography and Doppler ultrasound findings may replace the invasive intra-arterial arteriography examination in many patients with suspected macroangiopathy of the vertebrobasilar arteries.

Related Tags

(click to filter results - removes previous filter) angiography,cerebral angiography,posterior fossa doppler MRI,angiography ultrasonography vertebral artery vertebral artery occlusion vertebral artery stenosis vertebral-basilar insufficiency

Click Here to return To Results