High-resolution multishot spiral diffusion tensor imaging with inherent correction of motion-induced phase errors
Version of Record online: 28 FEB 2013
Copyright © 2013 Wiley Periodicals, Inc.
Magnetic Resonance in Medicine
Volume 71, Issue 2, pages 790–796, February 2014
How to Cite
Truong, T.-K. and Guidon, A. (2014), High-resolution multishot spiral diffusion tensor imaging with inherent correction of motion-induced phase errors. Magn Reson Med, 71: 790–796. doi: 10.1002/mrm.24709
- Issue online: 13 JAN 2014
- Version of Record online: 28 FEB 2013
- Manuscript Accepted: 2 FEB 2013
- Manuscript Revised: 27 JAN 2013
- Manuscript Received: 17 SEP 2012
- National Institutes of Health . Grant Number: R01EB012586
Additional Supporting Information may be found in the online version of this article.
|mrm24709-sup-0001-suppfig1.pdf||251K||FIG. S1. Two-shot spiral diffusion-weighted images in four axial slices uncorrected (a) and reconstructed with the iterative phase correction method proposed in (10) (b) or with the SENSE+CG method proposed in this work (c). The images shown in (a,b) are the same as those shown in Fig. 4a,b of (10) and all images were reconstructed with the same off-resonance correction method. This figure shows that both the iterative phase correction method and the SENSE+CG method can largely reduce the motion-induced signal loss and aliasing artifacts. In the frontal regions, the performance of the SENSE+CG method is even slightly higher, most likely because of its ability to correct not only for linear phase errors caused by rigid-body motion, but also for residual nonlinear phase errors caused by nonrigid motion that were not fully corrected with the cardiac gating method used in (10).|
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