Change in Morphological Features of Enlarged Subarachnoid Spaces Following Treatment in Idiopathic Normal Pressure Hydrocephalus

Background Focally enlarged sulci (FES) are areas of proposed extraventricular fluid entrapment that may occur within idiopathic normal pressure hydrocephalus (iNPH) with radiographic evidence of disproportionately enlarged subarachnoid‐space hydrocephalus (DESH), and should be differentiated from a...

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Bibliographic Details
Published in:Journal of magnetic resonance imaging 2023-05, Vol.57 (5), p.1443-1450
Main Authors: Camerucci, Emanuele, Graff‐Radford, Jonathan, Jones, David T., Elder, Benjamin D., Gunter, Jeffrey L., Cutsforth‐Gregory, Jeremy K., Botha, Hugo, Murphy, Matthew C., Johnson, Derek R., Davidge‐Pitts, Caroline, Jack, Clifford R., Huston, John, Cogswell, Petrice M.
Format: Article
Language:English
Subjects:
Atrophy
Atrophy - pathology
Cerebrospinal fluid
DESH features
Entrapment
Feature recognition
Field strength
focally enlarged sulci
Humans
Hydrocephalus
Hydrocephalus, Normal Pressure - pathology
Hydrocephalus, Normal Pressure - surgery
Magnetic resonance imaging
Magnetic Resonance Imaging - methods
NPH
Patients
Pituitary
Pituitary gland
Rank tests
Retrospective Studies
Shunts
Statistical analysis
Statistical tests
Subarachnoid Space - pathology
Subarachnoid Space - surgery
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Summary:Background Focally enlarged sulci (FES) are areas of proposed extraventricular fluid entrapment that may occur within idiopathic normal pressure hydrocephalus (iNPH) with radiographic evidence of disproportionately enlarged subarachnoid‐space hydrocephalus (DESH), and should be differentiated from atrophy. Purpose To evaluate for change in FES size and pituitary height after shunt placement in iNPH. Study type Retrospective. Subjects A total of 125 iNPH patients who underwent shunt surgery and 40 age‐matched controls. Field Strength/Sequence 1.5 T and 3 T. Axial T2w FLAIR, 3D T1w MPRAGE, 2D sagittal T1w. Assessment FES were measured in three dimensions and volume was estimated by assuming an ellipsoid shape. Pituitary gland height was measured in the mid third of the gland in iNPH patients and controls. Statistical tests Wilcoxon signed‐rank test for comparisons between MRI measurements; Wilcoxon rank sum test for comparison of cases/controls. Significance level was P 
ISSN:1053-1807
1522-2586
1522-2586
DOI:10.1002/jmri.28340