OBJECT The authors investigated whether quantified shape or size indices could better discriminate between ruptured and unruptured aneurysms. METHODS Several custom algorithms were created to quantifiy the size and shape indices of intracranial aneurysms by using three-dimensional computerized tomography angiography models of the brain vasculature. Data from 27 patients with ruptured or unrup...

BACKGROUND AND PURPOSE The natural history and optimal management of incidentally found small unruptured aneurysms <5 mm in size remain unclear. A prospective study was conducted to determine the optimal management for incidentally found small unruptured aneurysms. METHODS From September 2000 to January, 2004, 540 aneurysms (446 patients) were registered. Four hundred forty-eight unruptured a...

Development of less invasive imaging studies, such as magnetic resonance angiography, has increased the chances that unruptured cerebral aneurysms are found. The rupture risk of "symptomatic" aneurysms is higher than for "asymptomatic" aneurysms; so "symptomatic" aneurysms are more often surgically treated. Many reviews examine "asymptomatic" unruptured cerebral aneurysms, but few evaluate "sym...

BACKGROUND AND PURPOSE Practice patterns vary widely among centers with regard to the treatment of unruptured aneurysms. The purpose of the current study was to correlate outcome data with practice patterns, specifically the proportion of unruptured aneurysms treated with neurosurgical clipping versus endovascular coiling. MATERIALS AND METHODS Using the NIS, we evaluated outcomes of patients...

OBJECTIVE There are few studies comparing the economic costs and reimbursements for aneurysm clipping versus coiling, and none are from the United States. Our hypothesis predicted that coiling would result in shorter lengths of hospitalization than clipping in patients with unruptured aneurysms and would therefore result in lower hospital charges. However, because of the severity of subarachnoi...

BACKGROUND AND PURPOSE Endovascular therapy has increasingly become an acceptable option for treatment of unruptured aneurysms. To better understand the recent trends in the use of and outcomes related to coiling compared with clipping for unruptured aneurysms in the United States, we evaluated the NIS. MATERIALS AND METHODS Hospitalizations for clipping or coiling of unruptured cerebral aneu...

BACKGROUND AND PURPOSE Recent progress in noninvasive imaging techniques has resulted in increased detection of unruptured aneurysms. Although many neurosurgeons advocate surgical intervention for such unruptured aneurysms, the long-term results of surgery for unruptured aneurysms have not been carefully investigated. METHODS We analyzed 173 consecutive patients who had unruptured intracrania...

BACKGROUND AND PURPOSE Minorities in the United States have less access to healthcare system resources, especially preventative treatments. We sought to determine whether racial and sex disparities existed in the treatment of unruptured intracranial aneurysms. METHODS Using the Nationwide Inpatient Sample, hospitalizations for clipping and coiling of intracranial aneurysms from 2001 to 2009 w...

BACKGROUND AND PURPOSE Use of endovascular coiling for treatment of ruptured and unruptured intracranial aneurysms (IAs) in the elderly is increasing. We performed a meta-analysis of the literature examining clinical and angiographic outcomes for treatment of IAs in the elderly. METHODS We performed a comprehensive review of the literature from 1995 to 2012, reporting series of patients ≥65 y...