Sunday May 5th, 2013 CNS Aneurysms & Vascular Malformations: Physics Perspective Specialty Area: Multi-Disciplinary Neuroradiology CNS Aneurysms & Vascular Malformations
نویسنده
چکیده
Highlights: • Rapid blood flow and small features make the neuro-vasculature highly challenging to image. • Standard MRA techniques are challenged by flow based errors (Time of Flight) and the slow speed of MRI (Contrast Enhanced MRA). • Next generation neurovascular MRI may include improved inflow based MRI techniques, faster contrast enhanced MRI, and alternative flow based metrics vessel wall health.
منابع مشابه
Superselective Intra-Arterial Ethanol Sclerotherapy of Feeding Artery and Nidal Aneurysms in Ruptured Cerebral Arteriovenous Malformations.
In the endovascular treatment of cerebral arteriovenous malformations, ethanol sclerotherapy is seldom used due to safety concerns. However, when limited reflux of an embolic agent is permissible or when there is a long distance to the target, ethanol may be preferable. We reviewed 10 patients with 14 cerebral AVM feeding artery aneurysms or intranidal aneurysms treated with intra-arterial etha...
متن کاملeNS Manifestations of Hereditary Hemorrhagic Telangiectasia 569
Hereditary hemorrhagic telangiectasia (HHT) is a familial angiodysplastic disorder. Dermal, mucosal, and visceral vascular lesions of this disorder are well known. However, central nervous system (CNS) manifestations, occurring in as many as one-third of patients, have not been well appreciated until recently. The etiology of neurologic symptomatology includes hypoxemia or ischemia secondary to...
متن کاملAdvanced technologies applied to physiopathological analysis of central nervous system aneurysms and vascular malformations.
While depiction and definition of morphological and architectural characteristics of CNS vascular disorders remains the first step of an MR analysis, emerging imaging techniques offer new functional information that might help to characterize rupture risk of CNS vascular disorders. Two main orientations are suggested by recent studies: inflammation of the vessel wall and analysis of physical co...
متن کاملBalloon embolization of experimentally created aneurysms: an animal training model.
The intravascular treatment of aneurysms and vascular malformations with detachable balloons has become an increasingly popular alternative to conventional surgery. The critical nature of these procedures and the variability in the material, size, shape, and ease of detachability of commercially available balloons have led us to develop an animal model that provides the operator with experience...
متن کاملRotational cerebral angiography: procedure and value.
Rotational cerebral angiography provides continuously changing projections and correspondingly excellent visualization of aneurysms or other vascular malformations requiring special or oblique views. Rotation angiography as part of the routine angiography gives a three-dimensional impression with one injection and series of films. Although additional subtraction technique is not possible and th...
متن کامل