Parallel imaging acceleration of spiral Fourier velocity encoded MRI using SPIRiT

Author

Lyra-Leite, D.M. ; Carvalho, J.L.A.

Author_Institution

Dept. of Electr. Eng., Univ. of Brasilia, Brasilia, Brazil

fYear

2012

fDate

Aug. 28 2012-Sept. 1 2012

Firstpage

416

Lastpage

419

Abstract

This paper demonstrates parallel imaging acceleration of spiral Fourier velocity encoded MRI using the iterative self-consistent parallel imaging reconstruction (SPIRiT) technique. Magnitude images and time-velocity distributions obtained with image domain SPIRiT and sum-of-squares reconstruction are compared, for 2-fold and 4-fold undersampling. We show that SPIRiT is able to reduce spatial aliasing from undersampled time-velocity distributions, with good results for 2-fold undersampling, and moderately good results for 4-fold undersampling.

Keywords

biomedical MRI; image reconstruction; iterative methods; medical image processing; parallel processing; SPIRiT technique; iterative self consistent parallel imaging reconstruction; parallel imaging acceleration; spiral Fourier velocity encoded MRI; sum of squares reconstruction; Acceleration; Biomedical imaging; Image reconstruction; Magnetic resonance imaging; Spatial resolution; Spirals; Algorithms; Blood Flow Velocity; Carotid Arteries; Fourier Analysis; Humans; Image Interpretation, Computer-Assisted; Jugular Veins; Magnetic Resonance Angiography; Neck; Vertebral Artery;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society (EMBC), 2012 Annual International Conference of the IEEE

Conference_Location

San Diego, CA

ISSN

1557-170X

Print_ISBN

978-1-4244-4119-8

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/EMBC.2012.6345956

Filename

6345956