Can I read Partial RF echo planar imaging with the FAISE method. I. Experimental and theoretical assessment of artifact on EtoBox?

Partial RF echo planar imaging with the FAISE method. I. Experimental and theoretical assessment of artifact by Philippe S. Melki; Ferenc A. Jolesz; Robert V. Mulkern is a Medicine article available to read on EtoBox.

What is Partial RF echo planar imaging with the FAISE method. I. Experimental and theoretical assessment of artifact about?

## Abstract The fast acquisition interleaved spin‐echo (FAISE) method is a partial RF echo‐planar technique which utilizes a specific phase‐encode reordering algorithm to manipulate image contrast (Melki __et al., J. Magn. Reson. imaging__ 1:319, 1991). The technique can generate “spin‐echo” like images up to 16 times faster than conventional spin‐echo methods. However, the presence of T~2~ decay throughout the variable __k__‐space trajectories used to manipulate T~2~ contrast ensures the presence of image artifacts, especially along the phase‐encode direction. In this work, we experimentally and theoretically examine the type and extent of artifacts associated with the FAISE technique. We demonstrate the existence of well‐defined minima of phase‐encode ghost noise for selected __k__‐space trajectories, examine the extent of blurring and edge enhancement artifacts, demonstrate the influence of matrix size and number of echoes per train on phase‐encode artifact, and show how proper choice of FAISE sequence parameters can lead to proton density brain images which are practically indistinguishable from conventional spin‐echo proton density images. A comparison of contrast between FAIS

Who reads Partial RF echo planar imaging with the FAISE method. I. Experimental and theoretical assessment of artifact?

Author

Philippe S. Melki; Ferenc A. Jolesz; Robert V. Mulkern

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0740-3194)

Published

1992

Language

EN

Field

Medicine (Health Sciences)