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Revision as of 20:43, 7 December 2022

Typical imaging findings in normal pressure hydrocephalus versus brain atrophy.^[1]

	Normal pressure hydrocephalus	Brain atrophy
Preferable projection	Coronal plane at the level of the posterior commissure of the brain.
Modality in this example	CT	MRI
CSF spaces over the convexity near the vertex (red ellipse File:Red ellipse.png)	Narrowed convexity ("tight convexity") as well as medial cisterns	Widened vertex (red arrow) and medial cisterns (green arrow)
Callosal angle (blue Template:Font color)	Acute angle	Obtuse angle
Most likely cause of leucoaraiosis (periventricular signal alterations, blue arrows File:Flecha tesela.svg)	Transependymal cerebrospinal fluid diapedesis	Vascular encephalopathy, in this case suggested by unilateral occurrence

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+{|class="wikitable"
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+|+Typical imaging findings in normal pressure hydrocephalus versus brain atrophy.<ref name="Damasceno2015">{{cite journal | vauthors = Damasceno BP | title = Neuroimaging in normal pressure hydrocephalus | journal = Dementia & Neuropsychologia | volume = 9 | issue = 4 | pages = 350–355 | year = 2015 | pmid = 29213984 | pmc = 5619317 | doi = 10.1590/1980-57642015DN94000350 }}</ref>
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+|  |
+|align="center"|[[File:Normal pressure hydrocephalus versus atrophy, NPH.jpg|335px]]
+|align="center"|[[File:Normal pressure hydrocephalus versus atrophy, CA.jpg|333px]]
+|-
+|
+! Normal pressure hydrocephalus !! [[Brain atrophy]]
+|-
+| Preferable projection ||colspan=2| Coronal plane at the level of the posterior commissure of the brain.
+|-
+| Modality in this example || [[CT scan|CT]] || [[Magnetic resonance imaging|MRI]]
+|-
+| CSF spaces over the convexity near the vertex (red ellipse [[File:Red ellipse.png|20px]]) || Narrowed convexity ("tight convexity") as well as medial cisterns || Widened vertex (red arrow) and medial cisterns (green arrow)
+|-
+| Callosal angle (blue {{font color|DodgerBlue|'''V'''}}) || [[Acute angle]] || [[Obtuse angle]]
+|-
+| Most likely cause of [[leucoaraiosis]] (periventricular signal alterations, blue arrows [[File:Flecha tesela.svg|25px]])
+| Transependymal [[cerebrospinal fluid]] diapedesis
+| Vascular encephalopathy, in this case suggested by unilateral occurrence
+|}