Hydrocephalus CT: Difference between revisions
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__NOTOC__ | __NOTOC__ | ||
{{Hydrocephalus}} | {{Hydrocephalus}} | ||
{{CMG}}; | {{CMG}}; {{AE}} {{SAH}} | ||
==Overview== | ==Overview== | ||
CT and MRI | Ventricular enlargement not entirely attributable to cerebral atrophy or congenital enlargement (Evans index >0.3). No macroscopic obstruction to CSF flow. Enlargement of the temporal horns of the lateral ventricles not entirely attributable to hippocampus atrophy. Callosal angle of 40º or greater. Evidence of altered brain water content, including periventricular signal changes on CT and MRI not attributable to microvascular ischemic changes or demyelination. An aqueductal or fourth ventricular flow void. | ||
==CT== | ==CT== | ||
*The Ct scan findings are given below:<ref name="pmid29213984">{{cite journal |vauthors=Damasceno BP |title=Neuroimaging in normal pressure hydrocephalus |journal=Dement Neuropsychol |volume=9 |issue=4 |pages=350–355 |date=2015 |pmid=29213984 |pmc=5619317 |doi=10.1590/1980-57642015DN94000350 |url=}}</ref><ref name="pmid21221031">{{cite journal |vauthors=Toma AK, Holl E, Kitchen ND, Watkins LD |title=Evans' index revisited: the need for an alternative in normal pressure hydrocephalus |journal=Neurosurgery |volume=68 |issue=4 |pages=939–44 |date=April 2011 |pmid=21221031 |doi=10.1227/NEU.0b013e318208f5e0 |url=}}</ref><ref name="pmid23183074">{{cite journal |vauthors=Mori E, Ishikawa M, Kato T, Kazui H, Miyake H, Miyajima M, Nakajima M, Hashimoto M, Kuriyama N, Tokuda T, Ishii K, Kaijima M, Hirata Y, Saito M, Arai H |title=Guidelines for management of idiopathic normal pressure hydrocephalus: second edition |journal=Neurol. Med. Chir. (Tokyo) |volume=52 |issue=11 |pages=775–809 |date=2012 |pmid=23183074 |doi= |url=}}</ref> | |||
*Ventricular enlargement not entirely attributable to cerebral atrophy or congenital enlargement (Evans index >0.3). | |||
*No macroscopic obstruction to CSF flow. | |||
*At least one of the following supportive features: | |||
**Enlargement of the temporal horns of the lateral ventricles not entirely attributable to hippocampus atrophy; | |||
**Callosal angle of 40º or greater; | |||
**Evidence of altered brain water content, including periventricular signal changes on CT and MRI not attributable to microvascular ischemic changes or demyelination; | |||
**An aqueductal or fourth ventricular flow void. | |||
<gallery> | <gallery> | ||
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[[Category:Neurological disorders]] | [[Category:Neurological disorders]] | ||
[[Category:Greek loanwords]] | [[Category:Greek loanwords]] | ||
[[Category:Disease]] | [[Category:Disease]] | ||
[[Category:Neurology]] | [[Category:Neurology]] | ||
Latest revision as of 02:05, 23 August 2018
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Hydrocephalus Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Hydrocephalus CT On the Web |
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American Roentgen Ray Society Images of Hydrocephalus CT |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Syed Ahsan Hussain, M.D.[2]
Overview
Ventricular enlargement not entirely attributable to cerebral atrophy or congenital enlargement (Evans index >0.3). No macroscopic obstruction to CSF flow. Enlargement of the temporal horns of the lateral ventricles not entirely attributable to hippocampus atrophy. Callosal angle of 40º or greater. Evidence of altered brain water content, including periventricular signal changes on CT and MRI not attributable to microvascular ischemic changes or demyelination. An aqueductal or fourth ventricular flow void.
CT
- The Ct scan findings are given below:[1][2][3]
- Ventricular enlargement not entirely attributable to cerebral atrophy or congenital enlargement (Evans index >0.3).
- No macroscopic obstruction to CSF flow.
- At least one of the following supportive features:
- Enlargement of the temporal horns of the lateral ventricles not entirely attributable to hippocampus atrophy;
- Callosal angle of 40º or greater;
- Evidence of altered brain water content, including periventricular signal changes on CT and MRI not attributable to microvascular ischemic changes or demyelination;
- An aqueductal or fourth ventricular flow void.
Hydrocephalus
-
Hydrocephalus
-
Intracerebral hemorrhage
-
DWS: All of the black in the middle is cerebrospinal fluid and the brain matter is the rim of white along the outside of the skull.
References
- ↑ Damasceno BP (2015). "Neuroimaging in normal pressure hydrocephalus". Dement Neuropsychol. 9 (4): 350–355. doi:10.1590/1980-57642015DN94000350. PMC 5619317. PMID 29213984.
- ↑ Toma AK, Holl E, Kitchen ND, Watkins LD (April 2011). "Evans' index revisited: the need for an alternative in normal pressure hydrocephalus". Neurosurgery. 68 (4): 939–44. doi:10.1227/NEU.0b013e318208f5e0. PMID 21221031.
- ↑ Mori E, Ishikawa M, Kato T, Kazui H, Miyake H, Miyajima M, Nakajima M, Hashimoto M, Kuriyama N, Tokuda T, Ishii K, Kaijima M, Hirata Y, Saito M, Arai H (2012). "Guidelines for management of idiopathic normal pressure hydrocephalus: second edition". Neurol. Med. Chir. (Tokyo). 52 (11): 775–809. PMID 23183074.