Analysis of the magic asymmetric gradient stimulated echo sequence with shaped gradients

Phillip Zhe Sun; Seth A Smith; Jinyuan Zhou

doi:10.1016/j.jmr.2004.09.005

Analysis of the magic asymmetric gradient stimulated echo sequence with shaped gradients

J Magn Reson. 2004 Dec;171(2):324-9. doi: 10.1016/j.jmr.2004.09.005.

Authors

Phillip Zhe Sun¹, Seth A Smith, Jinyuan Zhou

Affiliation

¹ F. M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, MD 21205, USA. pzhesun@mri.jhu.edu

PMID: 15546759
DOI: 10.1016/j.jmr.2004.09.005

Abstract

Recently a 13-interval magic asymmetrical gradient stimulated echo (MAGSTE) sequence has been proposed for accurate displacement measurements in the presence of spatially varying background gradients. In this paper, the commonly used trapezoidal and sine shaped gradients are studied for the MAGSTE sequence, and the magic asymmetrical gradient ratio and b-factor are provided. The derivation enables the MAGSTE sequence to be implemented on systems with non-negligible gradient rise times.

MeSH terms

Diffusion
Nuclear Magnetic Resonance, Biomolecular / methods*