Japanese encephalitis MRI: Difference between revisions
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==MRI== | ==MRI== | ||
[[Magnetic resonance imaging]] 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> | [[Magnetic resonance imaging]] 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> | ||
*[[Parenchymal]] [[edema]] in affected regions | *[[Parenchymal]] [[edema]] in affected regions | ||
*[[DWI]]: variable restricted diffusion | *[[DWI]]: variable restricted diffusion | ||
Revision as of 14:35, 19 April 2016
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Japanese encephalitis Microchapters |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Anthony Gallo, B.S. [2]
Overview
Magnetic resonance imaging 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.
MRI
Magnetic resonance imaging 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
- ↑ Japanese encephalitis. Radiopaedia.org (2015). http://radiopaedia.org/articles/japanese-encephalitis Accessed on April 19, 2016.
- ↑ 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.