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On-line spatio-temporal independent component analysis for motion correction in renal DCE-MRI

Kiani, S, Windridge, D, Wells, K and Gordon, I (2012) On-line spatio-temporal independent component analysis for motion correction in renal DCE-MRI IEEE Nuclear Science Symposium Conference Record. pp. 2910-2915.

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Abstract

Dynamic contrast enhanced magnetic resonance imaging (DCE-MRI) renography, in common with other medical imaging techniques, is influenced by respiratory motion. As a result, data quantification may be inaccurate. This work presents a novel on-line approach for motion correction by implementing a spatio-temporal independent component analysis method (STICA). This methodology firstly results in removal of motion artefacts and secondly provides independent components that have physiological characteristics. The STICA was applied to 10 healthy volunteers' renal DCE-MRI data. The results were evaluated using independent component curve gradients (ICGs) from different regions of interest and by comparing them with the Rutland-Patlak (RP) analysis. The r values for the ICGs were significantly higher compared to the RP curves. The standard deviations of the IC curve gradients also showed less dispersion with comparison to the RP curve gradients across all the ten volunteers' renal data. © 2012 IEEE.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
AuthorsEmailORCID
Kiani, SUNSPECIFIEDUNSPECIFIED
Windridge, DUNSPECIFIEDUNSPECIFIED
Wells, KUNSPECIFIEDUNSPECIFIED
Gordon, IUNSPECIFIEDUNSPECIFIED
Date : 2012
Identification Number : 10.1109/NSSMIC.2012.6551664
Additional Information : © 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Depositing User : Symplectic Elements
Date Deposited : 01 Apr 2014 13:36
Last Modified : 26 Sep 2014 13:33
URI: http://epubs.surrey.ac.uk/id/eprint/805206

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