Blog
About

  • Record: found
  • Abstract: found
  • Article: not found

Correction for geometric distortion in echo planar images from B0 field variations.

Magnetic Resonance in Medicine

Algorithms, Models, Structural, Male, Image Processing, Computer-Assisted, Humans, methods, Echo-Planar Imaging, anatomy & histology, Brain

Read this article at

ScienceOpenPubMed
Bookmark
      There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

      Abstract

      A method is described for the correction of geometric distortions occurring in echo planar images. The geometric distortions are caused in large part by static magnetic field inhomogeneities, leading to pixel shifts, particularly in the phase encode direction. By characterizing the field inhomogeneities from a field map, the image can be unwarped so that accurate alignment to conventionally collected images can be made. The algorithm to perform the unwarping is described, and results from echo planar images collected at 1.5 and 4 Tesla are shown.

      Related collections

      Most cited references 1

      • Record: found
      • Abstract: not found
      • Article: not found

      Instant images of the human heart using a new, whole-body MR imaging system

        Bookmark

        Author and article information

        Journal
        7674900

        Comments

        Comment on this article