Vertigo CT: Difference between revisions
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==Overview== | ==Overview== | ||
[[CT scan]] is not the first-line [[imaging]] method preferred to determine the underlying cause of central vertigo due to its low [[sensitivity]] in identifying [[ischemic]] [[stroke]] and a negative [[CT scan]] cannot completely rule out the central cause of vertigo, it still needs to be further investigated with the help of an [[MRI]]. | |||
==CT== | ==CT== | ||
*[[CT scan]] or computerized axial tomography (CAT) of head and/or labyrinth may be necessary to identify the central cause of vertigo: [[ischemic]] [[stroke]], [[cerebellopontine angle]] [[tumor]], [[multiple sclerosis]]. | |||
*[[CT scan]] or computerized axial tomography (CAT) of head and or labyrinth may be necessary | *A negative [[CT]] scan cannot exclude the central cause of vertigo and it should be followed by an [[MRI]].<ref name="pmid22940762">{{cite journal| author=Lawhn-Heath C, Buckle C, Christoforidis G, Straus C| title=Utility of head CT in the evaluation of vertigo/dizziness in the emergency department. | journal=Emerg Radiol | year= 2013 | volume= 20 | issue= 1 | pages= 45-9 | pmid=22940762 | doi=10.1007/s10140-012-1071-y | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=22940762 }} </ref> | ||
*[[CT]] scan has low [[sensitivity]] for identifying [[ischemic]] [[stroke]] as compared to an [[MRI]].<ref name="pmid22940762">{{cite journal| author=Lawhn-Heath C, Buckle C, Christoforidis G, Straus C| title=Utility of head CT in the evaluation of vertigo/dizziness in the emergency department. | journal=Emerg Radiol | year= 2013 | volume= 20 | issue= 1 | pages= 45-9 | pmid=22940762 | doi=10.1007/s10140-012-1071-y | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=22940762 }} </ref> | |||
*If [[MRI]] is contraindicated then a thin cut [[CT]] scan can be used<ref name="pmid9725927">{{cite journal| author=Hotson JR, Baloh RW| title=Acute vestibular syndrome. | journal=N Engl J Med | year= 1998 | volume= 339 | issue= 10 | pages= 680-5 | pmid=9725927 | doi=10.1056/NEJM199809033391007 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=9725927 }} </ref>. | |||
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==References== | ==References== | ||
Latest revision as of 20:49, 22 January 2021
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Vertigo Microchapters |
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Vertigo CT On the Web |
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American Roentgen Ray Society Images of Vertigo CT |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Zehra Malik, M.B.B.S[2]
Overview
CT scan is not the first-line imaging method preferred to determine the underlying cause of central vertigo due to its low sensitivity in identifying ischemic stroke and a negative CT scan cannot completely rule out the central cause of vertigo, it still needs to be further investigated with the help of an MRI.
CT
- CT scan or computerized axial tomography (CAT) of head and/or labyrinth may be necessary to identify the central cause of vertigo: ischemic stroke, cerebellopontine angle tumor, multiple sclerosis.
- A negative CT scan cannot exclude the central cause of vertigo and it should be followed by an MRI.[1]
- CT scan has low sensitivity for identifying ischemic stroke as compared to an MRI.[1]
- If MRI is contraindicated then a thin cut CT scan can be used[2].
References
- ↑ 1.0 1.1 Lawhn-Heath C, Buckle C, Christoforidis G, Straus C (2013). "Utility of head CT in the evaluation of vertigo/dizziness in the emergency department". Emerg Radiol. 20 (1): 45–9. doi:10.1007/s10140-012-1071-y. PMID 22940762.
- ↑ Hotson JR, Baloh RW (1998). "Acute vestibular syndrome". N Engl J Med. 339 (10): 680–5. doi:10.1056/NEJM199809033391007. PMID 9725927.