Linogram reconstruction for magnetic resonance imaging (MRI)

Author

Axel, Leon ; Herman, Gabor T. ; Roberts, David A. ; Dougherty, Lawrence

Author_Institution

Dept. of Radiol., Pennsylvania Univ. Hosp., Philadelphia, PA, USA

Volume

9

Issue

4

fYear

1990

fDate

12/1/1990 12:00:00 AM

Firstpage

447

Lastpage

449

Abstract

Reconstruction of magnetic resonance images (MRIs) by backprojection, which commonly uses techniques analogous to those employed for X-ray computed tomography, is discussed. The recently developed method of linogram reconstruction, an alternative to conventional/backprojection methods of reconstruction from projections, has been adapted for MRI, taking advantage of MRI´s flexibility in choosing projection geometry. By avoiding the computationally intensive interpolations required for backprojection, linograms offer significant savings in reconstruction time over conventional backprojection and may offer a slight improvement in resolution as well

Keywords

biomedical NMR; patient diagnosis; backprojection; computationally intensive interpolations; linogram reconstruction; magnetic resonance imaging; medical diagnostic imaging; reconstruction time; Computed tomography; Convolution; Fourier transforms; Geometry; Image reconstruction; Interpolation; Magnetic fields; Magnetic resonance imaging; Optical imaging; X-ray imaging;

fLanguage

English

Journal_Title

Medical Imaging, IEEE Transactions on

Publisher

ieee

ISSN

0278-0062

Type

jour

DOI

10.1109/42.61760

Filename

61760