Cerebral vascular malformations adjacent to sensorimotor and visual cortex. Functional magnetic resonance imaging studies before and after therapeutic intervention

Stroke; a Journal of Cerebral Circulation
M J SchlosserI A Awad

Abstract

It is not known how cerebral vascular malformations affect the function of the surrounding brain. Functional magnetic resonance imaging (fMRI) can provide information about normal functional neuroanatomy and its alteration by vascular lesions and therapeutic intervention. We performed fMRI studies in 24 patients harboring vascular malformations adjacent to primary somatosensory, motor, and visual cortex. The fMRI studies consisted of the acquisition of an image time series coupled with functional activation of motor, sensory, or visual cortex in both hemispheres. Activated voxels were identified using frequency domain analyses, and their number and anatomic location were compared between the affected and unaffected hemispheres. Every patient capable of performing the desired task showed functional activation. Eight patients without neurological deficits showed a symmetrical pattern of activation between the hemispheres. Each had a vascular malformation located one or more gyri from the functional region imaged. Three patients showed hemispheric symmetry in the location of activated cortex but with a marked asymmetry in the number of activated voxels. Each harbored vascular malformations located within one gyrus of the functiona...Continue Reading

References

Oct 1, 1992·Seminars in Nuclear Medicine·K BroichM Kushner
May 1, 1989·Neurologia Medico-chirurgica·H H BatjerF J Bonte
Aug 1, 1986·Archives of Neurology·R W HomanF J Bonte
Oct 1, 1986·Journal of Neurosurgery·R F Spetzler, N A Martin
Jun 1, 1995·Brain : a Journal of Neurology·P RyvlinL Cinotti
Mar 27, 1995·Neuroreport·R J SeitzH J Freund
Oct 15, 1994·International Journal of Radiation Oncology, Biology, Physics·F S PardoA J Fischman
Sep 27, 1994·Proceedings of the National Academy of Sciences of the United States of America·Y CaoD N Levin
Mar 1, 1994·Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society·M A Naeser, C L Palumbo
Apr 1, 1994·Journal of Neuroimaging : Official Journal of the American Society of Neuroimaging·S T GraftonM E Phelps

❮ Previous
Next ❯

Citations

Nov 8, 2006·Neurosurgical Review·Nedal HejaziAntonius Schuster
Jan 19, 2000·Computerized Medical Imaging and Graphics : the Official Journal of the Computerized Medical Imaging Society·J SchlaierA Brawanski
Mar 3, 1998·Journal of the American College of Surgeons·I A Awad
Sep 25, 2008·Neurosurgery·Nobuo HashimotoNobuhiro Mikuni
Feb 4, 2010·Neurosurgical Focus·Geert-Jan Rutten, Nick F Ramsey
Feb 10, 2006·Neurosurgical Focus·C StapfE S Connolly
Jul 12, 2002·Human Brain Mapping·Steven C CramerBruce R Rosen
Mar 17, 2000·Current Opinion in Neurology·C Stapf, J P Mohr
Oct 27, 2009·Neurosurgery Clinics of North America·Dorothea StrozykSean D Lavine
Mar 24, 2009·Journal of Magnetic Resonance Imaging : JMRI·James T VoyvodicAllan H Friedman
Apr 25, 2006·Journal of Neuroimaging : Official Journal of the American Society of Neuroimaging·Patrizia PantanoFrancesca Caramia
Feb 12, 2014·Epilepsia·Prasanna JayakarUNKNOWN Task Force for Paediatric Epilepsy Surgery, Commission for Paediatrics, and the Diagnostic Commission of the International L
May 14, 2005·Neurophysiologie clinique = Clinical neurophysiology·Maria EngströmBirgitta Söderfeldt
Jul 13, 2004·Pediatric Neurology·Byron Bernal, Nolan Altman
Aug 1, 1998·Seminars in Ultrasound, CT, and MR·O Ortiz, R A Flores
Mar 17, 2004·Magnetic Resonance Imaging Clinics of North America·Chad Moritz, Victor Haughton
Feb 17, 2015·World Neurosurgery·Christopher J StapletonChristopher S Ogilvy
Jan 30, 2015·TheScientificWorldJournal·Nikolaos MouchtourisPascal M Jabbour
Jul 2, 2019·Journal of Neurosurgery·Issam A Awad, Sean P Polster
May 8, 1999·Neurosurgery·R D PaulsenM P Marks
Mar 9, 1999·Neurosurgery·R D PaulsenM P Marks
May 20, 2005·Brain : a Journal of Neurology·Patrizia PantanoCarlo Pozzilli
Nov 4, 2000·Neurosurgery·R C Heros, J J Morcos

❮ Previous
Next ❯

Related Concepts

Related Feeds

Barrel cortex

Here is the latest research on barrel cortex, a region of somatosensory and motor corticies in the brain, which are used by animals that rely on whiskers for world exploration.