Normal pressure hydrocephalus | Radiology Reference Article ...
Jun 16, 2024 · Learn about the clinical triad of gait, urinary, and cognitive impairment, and the imaging findings of ventriculomegaly, sulcal effacement, and disproportionate subarachnoid space hydrocephalus. Find out how to distinguish normal pressure hydrocephalus from other causes of hydrocephalus and how to use CSF flow studies for diagnosis and prognosis.
Hydrocephalus | Radiology Reference Article - Radiopaedia.org
Aug 12, 2024 · Learn about the causes, types, and radiographic features of hydrocephalus, a condition of increased cerebrospinal fluid (CSF) volume in the brain. Normal pressure hydrocephalus (NPH) is one of the types of non-obstructive hydrocephalus that …
Communicating hydrocephalus | Radiology Reference Article
Jan 12, 2024 · Learn about the causes, pathology, and radiographic features of communicating hydrocephalus, a type of hydrocephalus where CSF can leave the ventricular system. Find out how to distinguish it from ex vacuo dilatation and what treatment options are available.
Evans index | Radiology Reference Article | Radiopaedia.org
Apr 4, 2023 · Evans index is the ratio of the width of the frontal horns of the lateral ventricles and the maximal internal diameter of the skull. It is used to assess ventricular volume and diagnose normal pressure hydrocephalus, but it varies with age and sex.
Hydrocephalus vs atrophy | Radiology Reference Article
Mar 26, 2023 · Distinguishing primary hydrocephalus from atrophy resulting in compensatory enlargement of the CSF spaces as the cause of ventriculomegaly can be, at times, challenging in image interpretation. Radiographic features. Features that favor hydrocephalus include: dilatation of the temporal horns; lack of dilatation of parahippocampal fissures 4
Hydrocephalus ex vacuo | Radiology Reference Article
May 1, 2024 · Hydrocephalus ex vacuo is the increase in CSF volume due to brain shrinkage. It is common in elderly people and some pathological conditions. Learn about its terminology, pathology and differential diagnosis.
Callosal angle | Radiology Reference Article - Radiopaedia.org
Jul 31, 2022 · The callosal angle has been proposed as a useful marker of patients with idiopathic normal pressure hydrocephalus (iNPH), helpful in distinguishing these patients from those with ex-vacuo ventriculomegaly (see hydrocephalus versus atrophy).
Disproportionately enlarged subarachnoid space hydrocephalus …
Jan 30, 2024 · Disproportionately enlarged subarachnoid space hydrocephalus (DESH) is a pattern of communicating hydrocephalus characterized by crowding of the sulci superiorly near the vertex accompanied by enlargement of CSF spaces more …
CSF flow studies | Radiology Reference Article | Radiopaedia.org
CSF flow studies are used to evaluate cerebrospinal fluid dynamics and diagnose conditions such as hydrocephalus and CSF leaks.
Transependymal edema | Radiology Reference Article
Jul 7, 2024 · Transependymal edema is a type of cerebral edema that occurs with increased pressure within the cerebral ventricles. It is seen as low attenuation or high signal around the lateral ventricles on CT or MRI, and it is usually associated with obstructive hydrocephalus.
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