Multirate SPAMM tagging.
IEEE Trans Biomed Eng
; 50(9): 1045-51, 2003 Sep.
Article
in En
| MEDLINE
| ID: mdl-12943272
ABSTRACT
Many magnetic resonance tagging sequences rely on periodicity in order to produce a uniform tagging grid that covers the whole image plane. This, however, is not always desirable, since motion may be restricted to specific parts of the image, and also different motion characteristics may call for different tagging grid densities. In this paper, we present a combination of the spatial modulation of magnetization 1-1 method with selective excitation pulses that can be used in order to restrict the tagging grid only to regions of interest and produce tagging grid of different density in each region. The method is fast and easy to implement even on older or less expensive systems, since it does not require extensive gradient switching.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Algorithms
/
Image Enhancement
/
Magnetic Resonance Imaging, Cine
/
Motion
Type of study:
Evaluation_studies
Language:
En
Journal:
IEEE Trans Biomed Eng
Year:
2003
Document type:
Article
Affiliation country:
Greece