Self-refocused slice selection by magic echo DANTE with 270° flipping Gaussian RF modulation

The method of slice selection proposed for solid-state MRI by combining DANTE selective excitation with magic echo (ME) line narrowing requires a rephasing period ca. 0.6 times the DANTE excitation period. The added rephasing period results in a significant loss of sensitivity due to transverse rela...

Full description

Saved in:
Bibliographic Details
Published in:Journal of magnetic resonance (1997) 2010-04, Vol.203 (2), p.247-252
Main Authors: Masumoto, Hidefumi, Hashimoto, Takeyuki, Matsui, Shigeru
Format: Article
Language:English
Subjects:
DANTE
Line narrowing
Magic echo
MRI
Self-refocused slice selection
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The method of slice selection proposed for solid-state MRI by combining DANTE selective excitation with magic echo (ME) line narrowing requires a rephasing period ca. 0.6 times the DANTE excitation period. The added rephasing period results in a significant loss of sensitivity due to transverse relaxation. To solve the sensitivity problem, we make use of the self-refocusing effect of the 270° Gaussian-shaped soft pulse by introducing a 270° flipping Gaussian modulation to the ME DANTE method. This eliminates the rephasing period. The utility of the improved method is demonstrated by experiments performed on test samples of adamantane and polycarbonate.
ISSN:1090-7807
1096-0856
DOI:10.1016/j.jmr.2010.01.002