Japanese encephalitis MRI: Difference between revisions
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__NOTOC__ | __NOTOC__ | ||
{{Japanese encephalitis}} | {{Japanese encephalitis}} | ||
{{CMG}} | {{CMG}}; {{AE}} {{AG}} | ||
==Overview== | ==Overview== | ||
[[MRI]] is the imaging modality of choice for Japanese encephalitis. On MRI, Japanese encephalitis is characterized by symmetric or asymmetric [[bilateral]] [[thalamus|thalamic]] hypodensities, and [[subacute]] or [[chronic]] [[hemorrhagic]] [[lesion]]s.<ref name=JECTRadio> Japanese encephalitis. Radiopaedia.org (2015). http://radiopaedia.org/articles/japanese-encephalitis Accessed on April 19, 2016. </ref><ref name=CDCJaEnceph2> Japanese Encephalitis Symptoms and Treatment. Centers for Disease Control and Prevention (CDC), National Center for Emerging and Zoonotic Infectious Diseases, Division of Vector-Borne Diseases. (2015) http://www.cdc.gov/japaneseencephalitis/symptoms/ Accessed on April 12, 2016. </ref> | |||
==MRI== | |||
DWI: variable restricted diffusion | [[MRI]] is the imaging modality of choice for Japanese encephalitis. On MRI, Japanese encephalitis is characterized by symmetric or asymmetric [[bilateral]] [[thalamus|thalamic]] hypodensities, and [[subacute]] or [[chronic]] [[hemorrhagic]] [[lesion]]s.<ref name=JECTRadio> Japanese encephalitis. Radiopaedia.org (2015). http://radiopaedia.org/articles/japanese-encephalitis Accessed on April 19, 2016. </ref><ref name=CDCJaEnceph2> Japanese Encephalitis Symptoms and Treatment. Centers for Disease Control and Prevention (CDC), National Center for Emerging and Zoonotic Infectious Diseases, Division of Vector-Borne Diseases. (2015) http://www.cdc.gov/japaneseencephalitis/symptoms/ Accessed on April 12, 2016. </ref> Findings of Japanese encephalitis on MRI include:<ref name="pmid11415909">{{cite journal| author=Singh P, Kalra N, Ratho RK, Shankar S, Khandelwal N, Suri S| title=Coexistent neurocysticercosis and Japanese B encephalitis: MR imaging correlation. | journal=AJNR Am J Neuroradiol | year= 2001 | volume= 22 | issue= 6 | pages= 1131-6 | pmid=11415909 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=11415909 }} </ref><ref name="pmid9106289">{{cite journal| author=Kumar S, Misra UK, Kalita J, Salwani V, Gupta RK, Gujral R| title=MRI in Japanese encephalitis. | journal=Neuroradiology | year= 1997 | volume= 39 | issue= 3 | pages= 180-4 | pmid=9106289 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=9106289 }} </ref><ref name="pmid11752973">{{cite journal| author=Kim SS, Chang KH, Kim KW, Han MH, Park SH, Nam HW et al.| title=Unusual acute encephalitis involving the thalamus: imaging features. | journal=Korean J Radiol | year= 2001 | volume= 2 | issue= 2 | pages= 68-74 | pmid=11752973 | doi=10.3348/kjr.2001.2.2.68 | pmc=PMC2718104 | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=11752973 }} </ref> | ||
T1: low signal | *[[Parenchymal]] [[edema]] in affected regions | ||
T2/FLAIR: high signal | *DWI: variable restricted diffusion | ||
if | *T1: low signal | ||
*T2/FLAIR: high signal | |||
*[[GRE]]: patchy blooming (if [[hemorrhage]] is present) | |||
==References== | |||
{{Reflist|2}} | |||
[[Category:FinalQCRequired]] | |||
[[Category:Neurology]] | |||
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{{WH}} | {{WH}} | ||
Latest revision as of 18:06, 18 September 2017
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Japanese encephalitis Microchapters |
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Japanese encephalitis MRI On the Web |
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American Roentgen Ray Society Images of Japanese encephalitis MRI |
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Risk calculators and risk factors for Japanese encephalitis MRI |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Anthony Gallo, B.S. [2]
Overview
MRI is the imaging modality of choice for Japanese encephalitis. On MRI, Japanese encephalitis is characterized by symmetric or asymmetric bilateral thalamic hypodensities, and subacute or chronic hemorrhagic lesions.[1][2]
MRI
MRI is the imaging modality of choice for Japanese encephalitis. On MRI, Japanese encephalitis is characterized by symmetric or asymmetric bilateral thalamic hypodensities, and subacute or chronic hemorrhagic lesions.[1][2] Findings of Japanese encephalitis on MRI include:[3][4][5]
- Parenchymal edema in affected regions
- DWI: variable restricted diffusion
- T1: low signal
- T2/FLAIR: high signal
- GRE: patchy blooming (if hemorrhage is present)
References
- ↑ 1.0 1.1 Japanese encephalitis. Radiopaedia.org (2015). http://radiopaedia.org/articles/japanese-encephalitis Accessed on April 19, 2016.
- ↑ 2.0 2.1 Japanese Encephalitis Symptoms and Treatment. Centers for Disease Control and Prevention (CDC), National Center for Emerging and Zoonotic Infectious Diseases, Division of Vector-Borne Diseases. (2015) http://www.cdc.gov/japaneseencephalitis/symptoms/ Accessed on April 12, 2016.
- ↑ Singh P, Kalra N, Ratho RK, Shankar S, Khandelwal N, Suri S (2001). "Coexistent neurocysticercosis and Japanese B encephalitis: MR imaging correlation". AJNR Am J Neuroradiol. 22 (6): 1131–6. PMID 11415909.
- ↑ Kumar S, Misra UK, Kalita J, Salwani V, Gupta RK, Gujral R (1997). "MRI in Japanese encephalitis". Neuroradiology. 39 (3): 180–4. PMID 9106289.
- ↑ Kim SS, Chang KH, Kim KW, Han MH, Park SH, Nam HW; et al. (2001). "Unusual acute encephalitis involving the thalamus: imaging features". Korean J Radiol. 2 (2): 68–74. doi:10.3348/kjr.2001.2.2.68. PMC 2718104. PMID 11752973.