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Proceedings Paper

Local motion suppression in magnetic resonance imaging
Author(s): Yong Man Ro; Chang Hyun Oh
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Paper Abstract

Local motion of object in MR imaging usually leads to a motion artifact which is spread in phase coding direction. Subsequently, the spreading artifact results in the degradation of signal intensities even though static parts. A ghost artifact and a zipper-like artifact are examples for the object motion and flow effect. In this paper, a new local motion suppression technique is proposed where signal affected by the motion is localized using a short time Fourier transform or a windowed Fourier transform. Further, an MR pulse sequence for the windowed Fourier transform was developed and applied to object having local motions thereby showing local motion suppression. The computer simulations of the proposed method and their corresponding experimental results are reported.

Paper Details

Date Published: 24 July 1998
PDF: 8 pages
Proc. SPIE 3336, Medical Imaging 1998: Physics of Medical Imaging, (24 July 1998); doi: 10.1117/12.317011
Show Author Affiliations
Yong Man Ro, Taejon Univ. (South Korea)
Chang Hyun Oh, Korea Univ. (South Korea)

Published in SPIE Proceedings Vol. 3336:
Medical Imaging 1998: Physics of Medical Imaging
James T. Dobbins III; John M. Boone, Editor(s)

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