Magnetic resonance imaging

Author

Wright, G.A.

Author_Institution

Dept. of Med. Biophys., Toronto Univ., Ont., Canada

Volume

14

Issue

1

fYear

1997

fDate

1/1/1997 12:00:00 AM

Firstpage

56

Lastpage

66

Abstract

Signal processing lies at the core of MRI. Data acquisition and manipulation occur naturally in the spatial Fourier transform domain of the image. A review of the imaging process and the associated image characteristics reveals the many opportunities for contributions from the signal processing community. This article develops the Fourier representation of the imaging process from an overview of the physics of the MRI signal. This article also discusses tradeoffs in acquisition time, resolution, and field of view as well as image degradation associated with noise and motion artifacts. In addition, the ability to manipulate soft tissue contrast over a wide range of independent parameters in MRI is outlined

Keywords

Fourier transforms; biomedical NMR; data acquisition; image resolution; medical image processing; reviews; Fourier representation; MRI; acquisition time; data acquisition; field of view; image characteristics; image degradation; magnetic resonance imaging; manipulation; motion artifacts; noise; overview; physics; resolution; signal processing; soft tissue contrast; spatial Fourier transform domain; Biological tissues; Data acquisition; Degradation; Fourier transforms; Image resolution; Magnetic cores; Magnetic resonance imaging; Physics; Signal processing; Signal resolution;

fLanguage

English

Journal_Title

Signal Processing Magazine, IEEE

Publisher

ieee

ISSN

1053-5888

Type

jour

DOI

10.1109/79.560324

Filename

560324