A simple simultaneous geometric and intensity correction method for echo-planar imaging by EPI-based phase modulation.

A simple simultaneous geometric and intensity correction method for echo-planar imaging by EPI-based phase modulation.

A technique, based on echo planar imaging (EPI)-based phase modulation factor maps, is described for correction of EPI distortions resulting from field inhomogeneity. In this paper, a phase modulation factor was employed to remove the distortions. The phase modulation factor was obtained experimenta...

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Detalles Bibliográficos
Publicado en:IEEE Transactions on medical imaging 22, 2 (2003).
Autor principal: Jr-Yuan Chiou
Formato: Artículo
Lenguaje:English
Materias:
EPI distortions.
EPI-based phase modulation factor maps.
Distortions.
Echo-planar imaging.
Estimation error.
External noise.
fMRI.
Field inhomogeneity.
Geometric correction method.
Intensity correction method.
Inter-echo time interval.
Interpolation method.
K-space data.
Severely distorted images.
Simple simultaneous method.
Spin-echo images.
Spin-echo spacing.
Whole brain images.