What do white matter hyperintensities indicate?
What do white matter hyperintensities indicate?
Conclusion White matter hyperintensities predict an increased risk of stroke, dementia, and death. Therefore white matter hyperintensities indicate an increased risk of cerebrovascular events when identified as part of diagnostic investigations, and support their use as an intermediate marker in a research setting.
Is white matter hyperintensities a cerebrovascular disease?
White matter disease is commonly detected on brain MRI of aging individuals as white matter hyperintensities (WMH), or ‘leukoaraiosis.” Over the years it has become increasingly clear that the presence and extent of WMH is a radiographic marker of small cerebral vessel disease and an important predictor of the life- …
What might white matter hyperintensities Wmh indicate?
White matter hyperintensities are a predictor for vascular disease for which age and high blood pressure are the main risk factors. The review showed that WMHs are significantly associated with an increased risk of stroke.
What causes white matter lesions?
Major causes of periventricular white matter (PWM) lesions include normal changes from aging (then they are called UBO’s, for “unidentified bright objects), small strokes, and disorders related to multiple sclerosis (MS). PWM are also correlated with vitamin B6 (pyridoxine) deficiency.
What are white matter hyperintensities in the brain?
White matter hyperintensities (WMHs) are lesions in the brain that show up as areas of increased brightness when visualised by T2-weighted magnetic resonance imaging (MRI).
What are white matter hyperintensities in a CT scan?
WMH’s are also referred to as Leukoaraiosis and are often found in CT or MRI’s of older patients. The prevailing view is that these intensities are a marker of small-vessel vascular disease and in clinical practice, are indicative of cognitive and emotional dysfunction, particularly in the ageing population.
What are focal hyperintensities in the subcortical white matter?
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 causes white matter to change on MRI?
Like many other signs of vascular disease, some people are more at risk for these MRI signal changes than others. A certain degree of white matter change is expected as you age. There also tends to be some degree of genetic predisposition.