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A fast spin echo technique with circular sampling
Author(s) -
Zhou Xiaohong,
Liang ZhiPei,
Gewalt Sally L.,
Gofer Gary P.,
Lauterbur Paul C.,
Johnson G. Allan
Publication year - 1998
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.1910390106
Subject(s) - sampling (signal processing) , spin echo , fast spin echo , magnetic resonance imaging , artifact (error) , sensitivity (control systems) , noise (video) , nuclear magnetic resonance , magnetic resonance microscopy , k space , echo (communications protocol) , computer science , physics , optics , computer vision , electronic engineering , image (mathematics) , medicine , radiology , engineering , detector , computer network
This paper presents a fast spin echo (FSE) imaging method that employs circular sampling of Jr‐space. The technique has been implemented on a 2 Tesla imaging system and validated on both phantoms and living animals. Experimental studies have shown that circular sampling can produce artifact‐free FSE images without the need of phase correction. Although not fully explored, preliminary results also show that circular sampling may have advantages over the conventional rectilinear FSE in signal‐to‐noise ratio and imaging efficiency. A major disadvantage is the increased sensitivity to off‐resonance effects. The authors expect that the FSE technique with circular sampling will find its applications in magnetic resonance microscopy, neuro‐functional imaging, and real‐time dynamic studies.