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KMID : 1130620160120030253
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Journal of Clinical Neurology
2016 Volume.12 No. 3 p.253 ~ p.261
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Intracranial Artery Calcification and Its Clinical Significance
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Xiao Hong Wu
Xiang-Yan Chen
Li Juan Wang
Ka Sing Wong
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Abstract
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Intracranial arterial calcification (IAC) is an easily identifiable entity on plain head computed tomography scans. Recent studies have found high prevalence rates for IAC worldwide, and this may be associated with ischemic stroke and cognitive decline. Aging, traditional cardiovascular risk factors, and chronic kidney disease have been found to be associated with IAC. The severity of IAC can be assessed using different visual grading scales or various quantitative methods (by measuring volume or intensity). An objective method for assessing IAC using consistent criteria is urgently required to facilitate comparisons between multiple studies involving diverse populations. There is accumulating evidence from clinical studies that IAC could be utilized as an indicator of intracranial atherosclerosis. However, the pathophysiology underlying the potential correlation between IAC and ischemic stroke?through direct arterial stenosis or plaque stability?remains to be determined. More well-designed clinical studies are needed to explore the predictive values of IAC in vascular events and the underlying pathophysiological mechanisms.
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KEYWORD
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intracranial arterial calcification, ischemic stroke, computed tomography, risk factor, vascular stenosis
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