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Título del libro: Pan American Health Care Exchanges, Pahce 2011 - Conference, Workshops, And Exhibits. Cooperation / Linkages: An Independent Forum For Patient Care And Technology Support
Título del capítulo: FMRI-based inverse analysis of stroke patients' motor functions

Autores UNAM:
RONALD STUART LEDER;
Autores externos:

Idioma:

Año de publicación:
2011
Palabras clave:

Hand-movement brain correlates; Motor function; Pattern analysis; Sign language; Stroke patients; Function evaluation; Health care; Neural networks; Parameter estimation; Patient rehabilitation; Principal component analysis; Technology transfer; Independent component analysis


Resumen:

The feasibility of automating the evaluation of stroke chronic patients' motor functions has been explored while analyzing their corresponding fMRI studies with statistical parametric analysis, statistical inference analysis and a nonlinear multivoxel pattern-analysis classifier based on a feed-forward backward-propagation neural network. After doing principal component analysis and independent component analysis on an fMRI image data set, acquired after technology-based rehabilitation sessions of patients after stroke, an artificial neural network is trained with noncorrelated independent image-parameter vectors to discriminate statistical patterns of brain activations corresponding to each of the target sign language-like primitive hand movements that patients performed in the fMRI scanner while motor stimuli were being presented. The results look so promising that building a rehabilitation prognostics system could be looked forward. © 2011 IEEE.


Entidades citadas de la UNAM: