3D echo planar imaging: application to the human head

In this work, the authors present 3D images acquired from the human head using echo planar encoding for two of the three dimensions of k-space. The third dimension of k-space is filled by selecting and phase encoding a slab of spins as in conventional 3D steady state (GRASS based) acquisition regime...

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Bibliographic Details
Published in:	Magnetic resonance in medicine Vol. 34; no. 2; p. 144
Main Authors:	Abduljalil, A M, Aletras, A H, Robitaille, P M
Format:	Journal Article
Language:	English
Published:	United States 01-08-1995
Subjects:	Brain - anatomy & histology Copper Copper Sulfate Echo-Planar Imaging - instrumentation Echo-Planar Imaging - methods Feasibility Studies Fourier Analysis Head - anatomy & histology Humans Image Enhancement - instrumentation Image Enhancement - methods Models, Structural Neck - anatomy & histology Signal Processing, Computer-Assisted Skull - anatomy & histology
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Summary:	In this work, the authors present 3D images acquired from the human head using echo planar encoding for two of the three dimensions of k-space. The third dimension of k-space is filled by selecting and phase encoding a slab of spins as in conventional 3D steady state (GRASS based) acquisition regimens. Using this approach, a 128 x 64 x 64 3D data matrix could be obtained in 3.4-4.7 sec using effective TE values of 24 and 34 ms, respectively. High quality 3D images could be acquired once phase ghosts present on 2D images were minimized through proper adjustments of scanner hardware.
ISSN:	0740-3194
DOI:	10.1002/mrm.1910340203