Diagnostic value of 64 slices 128 layers CT angiography in intracranial arteries fenestration

Objective To explore the diagnostic value of 64 slices 128 layers CT angiography(CTA) in intracranial arteries fenestration,its the imaging characteristic,the frequency and common location of intracranial arterial fenestration.Methods The imaging data of 24 patients with intracranial arteries fenestration diagnosed by 64 slices 128 layers CT angiography were retrospectively analyzed.The variation location,type and other coexisting vascular anomalies were analyzed.Results Of 327 patients who was underwent the CTA,24 cases(25 locations) were detected with fenestrations,with 10 cases in vertebral artery,8 in basilar artery,4 in anterior communicating artery region,1 in middle cerebral artery,and 1 in both anterior communicating artery region and basilar artery.10 were categorized as slit-pattern,13 convex-lens-pattern,and 2 duplication-pattern.3 were complicated with aneurysms,and 1 with both aneurysms and AVM.Conclusion 64-slices 128 layers CTA is an accurate method for demonstrating the location,type of intracranial arteries fenestration and other coexisting intracranial arterial abnormalities,suggesting it as an optimum noninvasive imaging tool for the diagnosis of intracranial arteries fenestration.