Local motion suppression in magnetic resonance imaging

Yong Man Ro; Chang Hyun Oh

doi:10.1117/12.317011

24 July 1998 Local motion suppression in magnetic resonance imaging

Yong Man Ro, Chang Hyun Oh

Proceedings Volume 3336, Medical Imaging 1998: Physics of Medical Imaging; (1998) https://doi.org/10.1117/12.317011
Event: Medical Imaging '98, 1998, San Diego, CA, United States

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.

Citation Download Citation

Yong Man Ro and Chang Hyun Oh "Local motion suppression in magnetic resonance imaging", Proc. SPIE 3336, Medical Imaging 1998: Physics of Medical Imaging, (24 July 1998); https://doi.org/10.1117/12.317011

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available