The Stability of the Blood Oxygenation Level-Dependent Functional MRI Response to Motor Tasks Is Altered in Patients With Chronic Ischemic Stroke | Zendy

Kelley C. MazzettoBetti | Zendy; Renata Ferranti Leoni | Zendy; Octávio Marques PontesNeto | Zendy; Antônio Carlos dos Santos | Zendy; João Pereira Leite | Zendy; Afonso C. Silva | Zendy; Dráulio Barros de Araújo | Zendy

Open Access

The Stability of the Blood Oxygenation Level-Dependent Functional MRI Response to Motor Tasks Is Altered in Patients With Chronic Ischemic Stroke

Author(s) -

Kelley C. MazzettoBetti,

Renata Ferranti Leoni,

Octávio Marques PontesNeto,

Antônio Carlos dos Santos,

João Pereira Leite,

Afonso C. Silva,

Dráulio Barros de Araújo

Publication year - 2010

Publication title -

stroke

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.397

H-Index - 319

eISSN - 1524-4628

pISSN - 0039-2499

DOI - 10.1161/strokeaha.110.590471

Subject(s) - medicine , stroke (engine) , general linear model , physical medicine and rehabilitation , statistical parametric mapping , functional magnetic resonance imaging , linear model , motor system , supplementary motor area , stroke recovery , primary motor cortex , magnetic resonance imaging , neuroscience , motor cortex , physical therapy , rehabilitation , psychology , radiology , computer science , machine learning , mechanical engineering , psychiatry , engineering , stimulation

Functional MRI is a powerful tool to investigate recovery of brain function in patients with stroke. An inherent assumption in functional MRI data analysis is that the blood oxygenation level-dependent (BOLD) signal is stable over the course of the examination. In this study, we evaluated the validity of such assumption in patients with chronic stroke.

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