Optic Nerve Tortuosity in Idiopathic Intracranial Hypertension
نویسندگان
چکیده
منابع مشابه
Optic nerve diameters and perimetric thresholds in idiopathic intracranial hypertension.
AIMS/BACKGROUND Idiopathic intracranial hypertension (IIH) is a central nervous disorder characterised by abnormally increased cerebrospinal fluid (CSF) pressure leading to optic nerve compression. An indirect estimate of increased CSF pressure can be obtained by the ultrasonographic determination of optic nerve sheaths diameters. Computerised static perimetry is regarded as the method of choic...
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BACKGROUND AND PURPOSE Optic nerve tortuosity is one of several nonmalignant abnormalities documented on MR imaging in patients with neurofibromatosis type 1 and may be related to the development of optic pathway gliomas. This study seeks an operational definition for optic nerve tortuosity. MATERIALS AND METHODS A focus group of 3 pediatric neuroradiologists reviewed 20 MR images of the brai...
متن کاملOptic Nerve Head Quantification in Idiopathic Intracranial Hypertension by Spectral Domain OCT
OBJECTIVE To evaluate 3D spectral domain optical coherence tomography (SDOCT) volume scans as a tool for quantification of optic nerve head (ONH) volume as a potential marker for treatment effectiveness and disease progression in idiopathic intracranial hypertension (IIH). DESIGN AND PATIENTS Cross-sectional pilot trial comparing 19 IIH patients and controls matched for gender, age and body m...
متن کاملOptic Nerve Sheath Diameter on Sonography in Idiopathic Intracranial Hypertension Versus Normal.
OBJECTIVE To compare the mean optic nerve sheath diameter (ONSD) in patients with idiopathic intracranial hypertension (IIH) versus normal healthy individuals using B-scan ultrasonography as diagnostic tool. STUDY DESIGN Cross-sectional analytical study. PLACE AND DURATION OF STUDY Armed Forces Institute of Radiology and Imaging, Rawalpindi, Pakistan, from June to December 2015. METHODOLO...
متن کاملVolumetric assessment of optic nerve sheath and hypophysis in idiopathic intracranial hypertension.
BACKGROUND AND PURPOSE Idiopathic intracranial hypertension is a headache syndrome characterized by increased CSF pressure. Compression of the hypophysis and distension of the optic nerve sheath are reliable imaging signs. The purpose of the study was to validate, in patients with idiopathic intracranial hypertension, MR imaging-based volumetric measurements of the optic nerve sheath and hypoph...
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ژورنال
عنوان ژورنال: Internal Medicine
سال: 2020
ISSN: 0918-2918,1349-7235
DOI: 10.2169/internalmedicine.5086-20