Publications [#269093] of G. Allan Johnson

Papers Published
  1. Zhou, X; Liang, ZP; Gewalt, SL; Cofer, GP; Lauterbur, PC; Johnson, GA, A fast spin echo technique with circular sampling., Magnetic Resonance in Medicine, vol. 39 no. 1 (January, 1998), pp. 23-27 [9438433], [doi] .

    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.