Partial Fourier reconstruction using subspace projection

Author

Uma, K. ; Chandrasekharan, K. ; Paul, Jai Sachith

Author_Institution

Indian Inst. of Inf. Technol. & Manage.-Kerala, Trivandrum, India

fYear

2013

Firstpage

1

Lastpage

4

Abstract

Scan time reduction in MRI can be achieved by partial k-space reconstruction. Truncation of the k-space results in generation of artifacts in the reconstructed image. A subspace projection algorithm is developed for artifact-free reconstruction of sparse MRI. The algorithm is applied to a frequency weighted k-space, which fits into a signal-space model for sparse MR images. The application is illustrated using Magnetic Resonance Angiogram (MRA).

Keywords

biomedical MRI; image reconstruction; medical image processing; MRA; artifact generation; artifact-free reconstruction; frequency weighted k-space; k-space truncation; magnetic resonance angiogram; partial Fourier reconstruction; partial k-space image reconstruction; scan time reduction; signal-space model; sparse MR images; subspace projection algorithm; Filling; Image reconstruction; Magnetic resonance; Magnetic resonance imaging; Noise; Reconstruction algorithms; Vectors; 2D Partial k-space; Sparse MR; Subspace projection;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Vision, Pattern Recognition, Image Processing and Graphics (NCVPRIPG), 2013 Fourth National Conference on

Conference_Location

Jodhpur

Print_ISBN

978-1-4799-1586-6

Type

conf

DOI

10.1109/NCVPRIPG.2013.6776211

Filename

6776211