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BACKGROUND Paragangliomas are highly vascular tumors of neural crest origin that involve the walls of blood vessels or specific nerves within the head and neck. They may be multicentric, and they are rarely malignant. Surgery is the preferred treatment, and these tumors frequently extend to the skull base. There has been controversy concerning the role of(More)
BACKGROUND AND PURPOSE Embolization of a spinal cord arteriovenous malformation (SCAVM) is still considered risky. We evaluated the efficacy and reliability of pharmacologic provocative testing with neurophysiologic monitoring in the embolization of SCAVMs. METHODS We retrospectively analyzed results of 60 provocative tests during 84 angiographic(More)
BACKGROUND Untreated patients with symptomatic neonatal presentation of vein of Galen aneurismal malformations (VGAMs) carry almost 100% morbidity and mortality. Medical management and endovascular techniques for neonatal treatment have significantly evolved. OBJECTIVE To evaluate the clinical and angiographic outcomes of modern management of neonates(More)
Interventional Neuroradiology (INR) is not bound by the classical limits of a speciality, and is not restricted by standard formats of teaching and education. Open and naturally linked towards neurosciences, INR has become a unique source of novel ideas for research, development and progress allowing new and improved approaches to challenging pathologies(More)
The topic of interventional radiology of the extracranial head and neck is reviewed. Knowledge of functional vascular anatomy and recognition of the “dangerous anastomoses” between the external carotid artery and the intracranial circulation are stressed. Technical aspects of embolization are surveyed. The authors' approach to some of the more common(More)
Interventional Neuroradiology (INR) is not bound by the classical limits of a specialty, and is not restricted by standard formats of teaching and education. Open and naturally linked towards neurosciences, INR has become a unique source of novel ideas for research, development and progress allowing new and improved approaches to challenging pathologies(More)