Motion Compensation Along All Three Different Directions

Yu‐Chung Norman Cheng1, E. Mark Haacke2

1 Case Western Reserve University, Cleveland, Ohio, 2 The MRI Institute for Biomedical Research, Detroit, Michigan
Publication Name:  Current Protocols in Magnetic Resonance Imaging
Unit Number:  Unit B7.2
DOI:  10.1002/0471142719.mib0702s06
Online Posting Date:  November, 2002
GO TO THE FULL TEXT: PDF or HTML at Wiley Online Library

Abstract

This unit addresses how one can deal with phase perturbations that arise due to the presence of motion. Techniques to reduce or remove their associated artifacts are explained in detail. Artifacts due to phase changes that come from the read gradient, from the slice select gradient and from the phase encoding gradient are also discussed.

     
 
GO TO THE FULL PROTOCOL:
PDF or HTML at Wiley Online Library

Table of Contents

  • Overview
  • Technical Discussion
  • Acknowledgements
  • Key References
  • Figures
  • Tables
     
 
GO TO THE FULL PROTOCOL:
PDF or HTML at Wiley Online Library

Materials

GO TO THE FULL PROTOCOL:
PDF or HTML at Wiley Online Library

Figures

Videos

Literature Cited

Key References
   Axel, L. and Morton, D. 1987. MR flow imaging of velocity compensated/uncompensated difference images. J. Comput. Assist. Tomogr. 11:31.
  This paper describes the concepts involved in velocity compensation.
   Bradley, W.G. 1988. Flow phenomena in MR imaging. Am. J. Roentgenol. 150:983.
  The concept of even echo rephasing is described in this article.
   Frank, L.R., Crawley, A.P., and Buxton, R.B. 1992. Elimination of oblique flow artifacts in magnetic resonance imaging. Magn. Reson. Med. 25:299.
  The concept of velocity compensation along the phase encoding direction is described in this paper.
   Haacke, E.M. and Lenz, G.W. 1987. Improving MR image quality in the presence of motion by using rephasing gradients. Am. J. Roentgenol. 148:1251.
  This paper describes the concepts involved in velocity compensation.
   Haacke, E.M., Brown, R.W., Thompson, M.R., and Venkatesan, R. 1999. Magnetic Resonance Imaging: Physical Principles and Sequence Design. John Wiley & Sons, New York.
  This text covers the technical aspects presented here, but in more detail, and also discusses more advanced materials.
   Nayler, G.L., Firmin, D.N., and Longmore, D.B. 1986. Blood flow imaging by cine magnetic resonance. J. Comput. Assist. Tomogr. 10:715.
  This paper describes the concepts involved in velocity compensation.
   Nishimura, D.G., Macovski, A., and Pauly, J.M. 1986. Magnetic resonance angiography. IEEE Trans. Med. Imaging MI‐5:140.
  This paper describes the concepts involved in velocity compensation.
GO TO THE FULL PROTOCOL:
PDF or HTML at Wiley Online Library