Title :
Improved bulk rotation detection and correction in MRI
Author :
Bones, P.J. ; Maclaren, J.R.
Author_Institution :
Univ. of Canterbury, Christchurch
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;
Conference_Titel :
Engineering in Medicine and Biology Society, 2007. EMBS 2007. 29th Annual International Conference of the IEEE
Conference_Location :
Lyon
Print_ISBN :
978-1-4244-0787-3
DOI :
10.1109/IEMBS.2007.4352737
