A k-Space Analysis of MR Tagging

We present a k-space approximation that directly relates a pulse sequence to its residual pattern of z-directed magnetization Mz, in a manner akin to the k-space approximation for small tip-angle excitation. Our approximation is particularly useful for the analysis and design of tagging sequences, i...

Full description

Saved in:
Bibliographic Details
Published in:Journal of magnetic resonance (1997) 2000-02, Vol.142 (2), p.313-322
Main Authors: Kerwin, William S, Prince, Jerry L
Format: Article
Language:English
Subjects:
Humans
k space
Magnetic Resonance Imaging - methods
presaturation
pulse sequences
small tip-angle approximation
tagging
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:We present a k-space approximation that directly relates a pulse sequence to its residual pattern of z-directed magnetization Mz, in a manner akin to the k-space approximation for small tip-angle excitation. Our approximation is particularly useful for the analysis and design of tagging sequences, in which Mz is the important quantity—as opposed to the transverse magnetization components Mx and My considered in selective excitation. We demonstrate that our approximation provides new insights into tagging, can be used to design novel tag patterns, and, more generally, may be applied to selective presaturation sequences for purposes other than tagging.
ISSN:1090-7807
1096-0856
DOI:10.1006/jmre.1999.1946