Suppression of slice selection axis motion artifacts in MRI

Author

Hedley, Mark ; Yan, Hong

Author_Institution

Dept. of Electr. Eng., Sydney Univ., NSW, Australia

Volume

11

Issue

2

fYear

1992

fDate

6/1/1992 12:00:00 AM

Firstpage

233

Lastpage

237

Abstract

Patient motion during data acquisition in magnetic resonance imaging causes artifacts in the reconstructed image, which for two-dimensional Fourier transform imaging techniques appear as blurring and ghost repetitions of the moving structures. T. Mitsa et al. (1990) proposed a technique for suppressing artifacts from periodic motion along the slice selection axis. A different approach to the same problem is presented which is not restricted to periodic motion. The algorithm is verified using a simulated phantom and motion. It is also shown to perform well in the presence of noise and motion within the imaging plane

Keywords

biomedical NMR; 2D Fourier transform imaging techniques; algorithm; artifacts suppression technique; blurring; ghost repetitions; imaging plane; medical diagnostic imaging; patient motion; periodic motion; reconstructed image; slice selection axis motion artifacts; Amplitude modulation; Data acquisition; Equations; Fourier transforms; Image reconstruction; Imaging phantoms; Magnetic noise; Magnetic resonance; Magnetic resonance imaging; Signal processing algorithms;

fLanguage

English

Journal_Title

Medical Imaging, IEEE Transactions on

Publisher

ieee

ISSN

0278-0062

Type

jour

DOI

10.1109/42.141647

Filename

141647