Quantification of spinal cord atrophy from magnetic resonance images via a B-spline active surface model.
Magn Reson Med
; 47(6): 1176-85, 2002 Jun.
Article
em En
| MEDLINE
| ID: mdl-12111964
ABSTRACT
A method is presented that aims at segmenting and measuring the surface of the spinal cord from MR images in order to detect and quantify atrophy. A semiautomatic segmentation with very little intervention from an operator is proposed. It is based on the optimization of a B-spline active surface. The method allows for the computation of orthogonal cross-sections at any level along the cord, from which measurements are derived, such as cross-sectional area or curvature. An evaluation of the accuracy and reproducibility of the method is presented.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Medula Espinal
/
Imageamento por Ressonância Magnética
Tipo de estudo:
Diagnostic_studies
/
Etiology_studies
/
Prognostic_studies
Limite:
Humans
Idioma:
En
Revista:
Magn Reson Med
Assunto da revista:
DIAGNOSTICO POR IMAGEM
Ano de publicação:
2002
Tipo de documento:
Article
País de afiliação:
Reino Unido