Vertebrobasilar insufficiency MRI: Difference between revisions
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==Overview== | ==Overview== | ||
[[MRI]] and [[Magnetic resonance angiography|CE-MRA]] have some advantages to [[CT]] in diagnosis of the VBI. | |||
==MRI== | ==MRI== | ||
The [[Magnetic resonance angiography|CE-MRA]](Contrast-enhanced magnetic resonance angiography)had the highest sensitivity and specificity compared against the gold standard of intra-arterial angiography. [[Magnetic resonance angiography|CE-MRA]] offers better visualisation of the extracranial vertebral system than non-contrast [[Magnetic resonance angiography|MRA]]. | [[MRI]] is more sensitive than [[CT]] to posterior circulation infarcts, particularly in the [[brainstem]].Some research believe that [[MRI]] is better than [[CT]] for detection of acute ischaemia, and can detect acute and chronic haemorrhage; therefore it should be the preferred test for accurate diagnosis of patients with suspected acute [[stroke]]. <ref name="pmid17258669">Chalela JA, Kidwell CS, Nentwich LM, Luby M, Butman JA, Demchuk AM et al. (2007) [http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&retmode=ref&cmd=prlinks&id=17258669 Magnetic resonance imaging and computed tomography in emergency assessment of patients with suspected acute stroke: a prospective comparison.] ''Lancet'' 369 (9558):293-8. [http://dx.doi.org/10.1016/S0140-6736(07)60151-2 DOI:10.1016/S0140-6736(07)60151-2] PMID: [http://pubmed.gov/17258669 17258669]</ref> The [[Magnetic resonance angiography|CE-MRA]](Contrast-enhanced magnetic resonance angiography)had the highest sensitivity and specificity compared against the gold standard of intra-arterial angiography. [[Magnetic resonance angiography|CE-MRA]] offers better visualisation of the extracranial vertebral system than non-contrast [[Magnetic resonance angiography|MRA]].Some research believe that [[MRI]] is better than [[CT]] for detection of acute ischaemia, and can detect acute and chronic haemorrhage; therefore it should be the preferred test for accurate diagnosis of patients with suspected acute [[stroke]]. | ||
[[File:The vertebarobasilar artery.png|400px|thumb|none|MRA]] | |||
==References== | ==References== | ||
{{Reflist|2}} | {{Reflist|2}} | ||
Latest revision as of 13:21, 11 December 2013
| Vertebrobasilar insufficiency
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Differentiating Vertebrobasilar insufficiency from other Diseases |
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Diagnosis |
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Treatment |
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Case Studies |
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Vertebrobasilar insufficiency MRI On the Web |
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American Roentgen Ray Society Images of Vertebrobasilar insufficiency MRI |
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Directions to Hospitals Treating Vertebrobasilar insufficiency |
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Risk calculators and risk factors for Vertebrobasilar insufficiency MRI |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
MRI and CE-MRA have some advantages to CT in diagnosis of the VBI.
MRI
MRI is more sensitive than CT to posterior circulation infarcts, particularly in the brainstem.Some research believe that MRI is better than CT for detection of acute ischaemia, and can detect acute and chronic haemorrhage; therefore it should be the preferred test for accurate diagnosis of patients with suspected acute stroke. [1] The CE-MRA(Contrast-enhanced magnetic resonance angiography)had the highest sensitivity and specificity compared against the gold standard of intra-arterial angiography. CE-MRA offers better visualisation of the extracranial vertebral system than non-contrast MRA.Some research believe that MRI is better than CT for detection of acute ischaemia, and can detect acute and chronic haemorrhage; therefore it should be the preferred test for accurate diagnosis of patients with suspected acute stroke.
References
- ↑ Chalela JA, Kidwell CS, Nentwich LM, Luby M, Butman JA, Demchuk AM et al. (2007) Magnetic resonance imaging and computed tomography in emergency assessment of patients with suspected acute stroke: a prospective comparison. Lancet 369 (9558):293-8. DOI:10.1016/S0140-6736(07)60151-2 PMID: 17258669