Improved bulk rotation detection and correction in MRI

Author

Bones, P.J. ; Maclaren, J.R.

Author_Institution

Univ. of Canterbury, Christchurch

fYear

2007

fDate

22-26 Aug. 2007

Firstpage

2106

Lastpage

2109

Abstract

Bulk motion occurring during the acquisition of magnetic resonance images (MRI) remains a significant limitation in image quality. The paper presents an extension to TRELLIS, a recently developed method of detecting and correcting for bulk motion. Accurate determination of the relative orientations of overlapping strips of k-space is demonstrated. Reconstructions for both simulated and actual MRI acquisitions are presented.

Keywords

biomedical MRI; image motion analysis; image reconstruction; medical image processing; MRI; bulk rotation correction; bulk rotation detection; image reconstruction; k-space overlapping strips; magnetic resonance images; Bones; Image quality; Magnetic resonance; Magnetic resonance imaging; Motion detection; Noise level; Phase detection; Propellers; Signal to noise ratio; Strips; Algorithms; Artifacts; Artificial Intelligence; Brain; Computer Simulation; Equipment Design; Humans; Image Processing, Computer-Assisted; Imaging, Three-Dimensional; Magnetic Resonance Imaging; Models, Statistical; Motion; Pattern Recognition, Automated; Phantoms, Imaging; Rotation;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2007. EMBS 2007. 29th Annual International Conference of the IEEE

Conference_Location

Lyon

ISSN

1557-170X

Print_ISBN

978-1-4244-0787-3

Type

conf

DOI

10.1109/IEMBS.2007.4352737

Filename

4352737