Premium
Performance of an elliptical centric view order for signal enhancement and motion artifact suppression in breath‐hold three‐dimensional gradient echo imaging
Author(s) -
Wilman Alan H.,
Riederer Stephen J.
Publication year - 1997
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/mrm.1910380516
Subject(s) - imaging phantom , artifact (error) , signal (programming language) , breathing , computer science , gradient echo , echo (communications protocol) , k space , radius , transducer , physics , nuclear magnetic resonance , acoustics , optics , computer vision , magnetic resonance imaging , fourier transform , medicine , radiology , computer network , computer security , anatomy , programming language , quantum mechanics
An elliptical centric phase‐encoding (PE) order is applied to steady‐state 3DFT imaging as performed during a single breath‐hold or following contrast agent administration. In a set of simulation, phantom, and in vivo experiments, this truly centric PE order is shown to be both more resistant to breathing artifact and more capable of suppressing undesirable venous signals that can arise following peak arterial enhancement than a number of other centric PE techniques that are presently in use. Unlike other PE orders, the elliptical centric ordering changes with the relative dimensions of the two PE fields of view and is optimal based on increasing k ‐space radius. It thus creates a temporally diminishing importance to the PE order. The specific advantages of such an acquisition are demonstrated.