Constantine Chris Phatouros

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OBJECTIVES To determine the sensitivity, specificity, and positive predictive values of a selection of abnormal findings in the putamen and infratentorial structures on routine magnetic resonance imaging for distinguishing between multiple system atrophy, idiopathic Parkinson's disease, and age matched controls. PATIENTS AND METHODS Two neuroradiologists(More)
BACKGROUND AND PURPOSE The previous decade has witnessed increasing application of Guglielmi detachable coils (GDCs) for the treatment of intracranial aneurysms. However, the midterm angiographic and clinical outcomes are not well documented. We report here the angiographic and clinical outcomes of patients treated with GDCs over an 8-year period. METHODS(More)
BACKGROUND AND PURPOSE Vertebrobasilar territory ischemia (VBI) leads to disabling neurological symptoms and poses a risk for stroke by an embolic or flow-related mechanism. We present our clinical experience in the endovascular treatment of patients with symptomatic VBI from severe atherosclerosis or dissection of the vertebral and subclavian arteries that(More)
OBJECTIVES Conventional T2 weighted MRI studies have highlighted the fact that the presence of clinically silent brain lesions increases the risk of developing clinically definite multiple sclerosis after an isolated syndrome of the optic nerve, brain stem, or spinal cord. The objectives of the present study are: (1) to show whether or not these patients(More)
BACKGROUND AND PURPOSE A number of flow-diverting devices have become available for endovascular occlusion of cerebral aneurysms. This article reports immediate and midterm results in treating unruptured aneurysms with the PED. MATERIALS AND METHODS A prospective registry was established at 3 Australian neurointerventional units. Aneurysms were treated on(More)
BACKGROUND AND PURPOSE We sought to describe the clinical outcome and angiographic results obtained in the endovascular therapy of ruptured posterior circulation cerebral aneurysms using Guglielmi detachable coils (GDC) over a 7-year period. METHODS A retrospective analysis was performed of 112 patients evaluated at the University of California at San(More)
OBJECTIVE Cerebral hyperperfusion syndrome is a recognized complication of carotid endarterectomy, with a reported incidence of 0.3 to 1.2%. The incidence of cerebral hyperperfusion after endovascular revascularization procedures of the craniocervical arteries remains unknown. We evaluated the incidence of cerebral hyperperfusion syndrome in our(More)
Giant and fusiform aneurysms of the basilar artery (BA) are difficult to manage surgically, and they still present a challenge for the neurosurgeon despite progress in posterior fossa surgery. Guglielmi detachable coils have provided an alternative approach to treatment, but they have their own difficulties. We present a series of three patients with BA(More)
OBJECTIVE AND IMPORTANCE Coil embolization of wide-necked aneurysms is currently difficult, when using a conventional endovascular approach without resorting to complex adjunctive techniques. CLINICAL PRESENTATION A 41-year-old woman with a history of systemic lupus erythematosus and hypertension refractory to treatment presented with an unruptured right(More)
OBJECTIVE The balloon-assist or neck-remodeling technique is an adjunctive method devised for the endovascular coil embolization of aneurysms characterized by a wide neck or unfavorable geometric features. Since its initial description, there have been few data to corroborate its utility, efficacy, and safety in aneurysm embolization. METHODS Twenty(More)