Publications [#132829] of G. Allan Johnson
- X Zhou, ZP Liang, SL Gewalt, GP Cofer, PC Lauterbur, GA Johnson, A fast spin echo technique with circular sampling.,
Magnetic resonance in medicine : official journal of the Society of Magnetic Resonance in Medicine / Society of Magnetic Resonance in Medicine, UNITED STATES, vol. 39 no. 1
pp. 23-7, ISSN 0740-3194
(last updated on 2005/08/03)
This paper presents a fast spin echo (FSE) imaging method that employs circular sampling of k-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.
Animals • Brain • Echo-Planar Imaging • Image Processing, Computer-Assisted • Magnetic Resonance Imaging • Models, Theoretical • Phantoms, Imaging* • Rats • Sensitivity and Specificity • anatomy & histology* • instrumentation • methods • methods*