Table of Contents
What is subcortical hyperintensity?
Introduction: Subcortical hyperintensities (SHs) are radiological entities commonly observed on magnetic resonance imaging (MRI) of patients with Alzheimer’s disease (AD) and normal elderly controls.
What is FLAIR hyperintensity in brain?
Focal hyperintensities in the subcortical white matter demonstrated by T2-weighted or FLAIR images are a common incidental finding in patients undergoing brain MRI for indications other than stroke. They are indicative of chronic microvascular disease.
What is FLAIR hyperintensity on MRI?
White matter hyperintensities (WMHs) are clinically silent abnormalities visible in deep or periventricular white matter on CT or MRI. They are particularly apparent on FLAIR MRI, which is a T2-weighted sequence where the CSF signal is suppressed.
What does punctate mean on an MRI?
The presence of a few hyperintense punctate foci in the cerebral white matter at MRI is a very common finding that can be regarded as insignificant in most of the cases. These bright dots, considered as normal, can be a manifestation of dilated perivascular spaces or small gliotic or lacunar ischemic foci.
What causes white matter FLAIR hyperintensities?
Incident stroke Indeed, age and hypertension are the main predictors of white matter hyperintensities,69 70 and other vascular risk factors such as smoking, diabetes, and history of vascular disease were also shown to be associated with lesions in white matter.
What is FLAIR hyperintensity?
they are defined as hyperintensities on the FLAIR of at least 3 mm in size, that can be distinguished from dilated perivascular spaces (which appear isointense on FLAIR).
How many larger foci of Flair hyperintensity are demonstrated within white matter?
Aprox, 5 to 6 larger foci of FLAIR hyperintensity are demonstrated within the white matter posterior to he bodies of the lateral ventricles bilaterally right more than left? Also in my MRI result, information states abnormal hypointensity to the calvarial osseous marrow signal. I also have Chiari Malformation (this i already know much about).
Do WMH lesions on T2/FLAIR brain MRI correspond to irreversible changes?
White matter hyperintensities (WMH) lesions on T2/FLAIR brain MRI are frequently seen in healthy elderly people. Whether these radiological lesions correspond to irreversible histological changes is still a matter of debate.
How common is deep white matter hyperintensities in late-onset depression?
In the same line, deep white matter and to a lesser degree periventricular hyperintensities are more common and more severe among individuals with late-onset depression than in healthy controls [11,12].
How many T2 and Flair hyperintense foci are in the brain?
Pam Cress “There are at least 20 T2 and FLAIR hyperintense FOCI within the periventicular and subcortical white matter of both cerebral hemispheres”. Also, I had a recent ANA test and the results were: Positive/Titre 80/patteren speckled. Thanks.